Latest in hep-ph

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Dynamical resolution scale in transverse momentum distributions at the LHCAug 22 2019The QCD evolution of transverse momentum dependent (TMD) distribution functions has recently been formulated in a parton branching (PB) formalism. In this approach, soft-gluon coherence effects are taken into account by introducing the soft-gluon resolution ... More
Unfolding as Quantum AnnealingAug 22 2019High-energy physics is replete with hard computational problems and it is one of the areas where quantum computing could be used to speed up calculations. We present an implementation of likelihood-based regularized unfolding on a quantum computer. The ... More
Reflections on Virasoro circuit complexity and Berry phaseAug 22 2019Recently, the notion of circuit complexity defined in symmetry group manifolds has been related to geometric actions which generally arise in the coadjoint orbit method in representation theory and play an important role in geometric quantization. On ... More
General Composite Non-Abelian Strings and Flag Manifold Sigma ModelsAug 22 2019We fully investigate the symmetry breaking patterns occurring upon creation of composite non-Abelian strings: vortex strings in non-Abelian theories where different sets of colours have different amounts of flux. After spontaneous symmetry breaking, there ... More
Measuring $H_0$ in PTA with gravitational wavesAug 22 2019Pulsar Timing Arrays have yet to find convincing evidence of gravitational waves. Some time ago it was pointed out by one of the authors that a dramatic enhancement of the signal would take place for particular values of the angle subtended by the source ... More
Nucleon-antinucleon annihilation at LEARAug 22 2019This report is a historical review of the salient results in low energy antiproton-proton and antineutron-proton annihilation obtained at the Low Energy Antiproton Ring (LEAR), which was operated at CERN between 1983 and 1996. The intention is to provide ... More
Superstring Amplitudes, Unitarity, and Hankel Determinants of Multiple Zeta ValuesAug 22 2019The interplay of unitarity and analyticity has long been known to impose strong constraints on scattering amplitudes in quantum field theory and string theory. This has been highlighted in recent times in a number of papers and lecture notes. Here we ... More
Multi-messenger tests of cosmic-ray acceleration in radiatively inefficient accretion flowsAug 22 2019The cores of active galactic nuclei (AGNs) have been suggested as the sources of IceCube neutrinos, and recent numerical simulations have indicated that hot AGN coronae of Seyfert galaxies and radiatively inefficient accretion flows (RIAFs) of low-luminosity ... More
$keV$ scale dark matter, baryogenesis and neutrinoless double beta decay in minimal extended seesawAug 22 2019We have studied $keV$ scale dark matter (DM), neutrinoless double beta decay (NDBD) and baryogenesis within minimal extended seesaw (MES). A generic model based on $A_4\times Z_4$ flavor symmetry is used to explain both normal and inverted hierarchy mass ... More
How to include exclusive $J/ψ$ production data in global PDF analysesAug 22 2019We compare the cross section for exclusive $J/\psi$ photoproduction calculated at NLO in the collinear factorization approach with HERA and LHCb data. Using the optimum scale formalism together with the subtraction of the low $k_t<Q_0$ contribution from ... More
Renormalization group improved pressure for cold and dense QCDAug 22 2019We apply the renormalization group optimized perturbation theory (RGOPT)to evaluate the QCD (matter) pressure at the two-loop level considering three flavors of massless quarks in a dense and cold medium. Already at leading order ($\alpha_s^0$), which ... More
Towards the meV limit of the effective neutrino mass in neutrinoless double-beta decaysAug 22 2019In this paper, we emphasize why it is important for future neutrinoless double-beta ($0\nu\beta\beta$) decay experiments to reach the sensitivity to the effective neutrino mass $|m^{}_{\beta\beta}| \approx 1~{\rm meV}$. Assuming such a sensitivity and ... More
CIMBA: fast Monte Carlo generation using cubic interpolationAug 22 2019Monte Carlo generation of high energy particle collisions is a critical tool for both theoretical and experimental particle physics, connecting perturbative calculations to phenomenological models, and theory predictions to full detector simulation. The ... More
Intrinsic three-body nuclear interaction from a constituent quark modelAug 22 2019We study the short distance part of the intrinsic three-nucleon interaction in a constituent quark model with color-spin interaction. For that purpose we first calculate the transformation coefficient between the tribaryon configuration and their corresponding ... More
EW-QCD interference in hadronic vector bosons at LHCAug 22 2019The analysis of hadronic vector boson decays at LHC does not normally allow for interference with QCD production. These effects are studied here using the Sherpa package and can move by several GeV/c 2 the peak positions experiments would reconstruct. ... More
A generator of forward neutrons for ultra-peripheral collisions: $\textbf{n$\mathbf{_O^O}$n}$Aug 22 2019The study of photon-induced reactions in collisions of heavy nuclei at RHIC and the LHC has become an important direction of the research program of these facilities in recent years. In particular, the production of vector mesons in ultra-peripheral collisions ... More
Boosted $W/Z$ Tagging with Jet Charge and Deep LearningAug 22 2019We demonstrate that the classification of boosted, hadronically-decaying weak gauge bosons can be significantly improved over traditional cut-based and BDT-based methods using deep learning and the jet charge variable. We construct binary taggers for ... More
M. Kontsevich's graph complexes and universal structures on graded symplectic manifolds IAug 22 2019In the formulation of his celebrated Formality conjecture, M. Kontsevich introduced a universal version of the deformation theory for the Schouten algebra of polyvector fields on affine manifolds. This universal deformation complex takes the form of a ... More
Dark matter searches with the IceCube UpgradeAug 22 2019Weakly Interacting Massive Particles (WIMPs) are well-motivated candidates for Dark Matter (DM). WIMP models often include self-annihilation into Standard Model particles such as neutrinos which could potentially be detected by the IceCube Neutrino Observatory. ... More
Operation of ILC250 at the Z-poleAug 22 2019ILC (International Linear Collider) has been under consideration as the next global project of particle physics. It's Technical Design Report, published in 2013, described the accelerator for the center-of-mass energy above 200GeV. Operation of ILC at ... More
Electron-positron pair production in frequency modulated laser fieldsAug 22 2019The momentum spectrum and the number density of created electron-positron pairs in a frequency modulated laser field are investigated using quantum kinetic equation. It is found that the momentum spectrum presents obvious interference pattern. This is ... More
X-ray Intra-day Variability of the TeV Blazar Mrk 421 with SuzakuAug 22 2019We present X-ray flux and spectral analyses of the three pointed Suzaku observations of the TeV high synchrotron peak blazar Mrk 421 taken throughout its complete operational duration. The observation taken on 5 May 2008 is, at 364.6 kiloseconds (i.e., ... More
Flavoured leptogenesis and ${\rm CP}^{μτ}$ symmetryAug 21 2019We present a systematic study of leptogenesis in neutrino mass models with $\mu\tau$-flavoured CP symmetry. In addition to the strong hierarchical $N_1$-dominated scenario ($N_1$DS) in the `two flavour regime' of leptogenesis, we show that one may choose ... More
The phase diagram of the Polyakov Nambu Jona-Lasinio approach for finite chemical potentialsAug 21 2019We extend the SU(3) (Polyakov) Nambu Jona-Lasinio in two ways: We introduce the next to leading order contribution (in $N_c$) in the partition function. This contribution contains explicit mesonic terms. We introduce a coupling between the gluon field ... More
Mass-deformed $\mathcal{N} = 3$ Supersymmetric Chern-Simons-Matter TheoryAug 21 2019The maximal extension of supersymmetric Chern-Simons theory coupled to fundamental matter has $\mathcal{N} = 3$ supersymmetry. In this short note, we provide the explicit form of the action for the mass-deformed $\mathcal{N} = 3$ supersymmetric $U(N)$ ... More
Towards an M5-Brane Model II: Metric String StructuresAug 21 2019We clarify the mathematical formulation of metric string structures, which play a crucial role in the formulation of six-dimensional superconformal field theories. We show that the connections on non-abelian gerbes usually introduced in the literature ... More
Particles propagation on a torusAug 21 2019Based on variational principle and Faddeev method, we present a general framework toward finding propagating solutions of multiple interacting particles on a torus. Two different versions of multiple particles secular equations are presented. Version ... More
Effective Field Theory of Gravity to All OrdersAug 21 2019We construct the general effective field theory of gravity coupled to the Standard Model of particle physics, which we name GRSMEFT. Our method allows the systematic derivation of a non-redundant set of operators of arbitrary dimension with generic field ... More
Integrability and cycles of deformed ${\cal N}=2$ gauge theoryAug 21 2019To analyse pure ${\cal N}=2$ $SU(2)$ gauge theory in the Nekrasov-Shatashvili (NS) limit (or deformed Seiberg-Witten (SW)), we use the Ordinary Differential Equation/Integrable Model (ODE/IM) correspondence, and in particular its (broken) discrete symmetry ... More
Consistent large-scale shell-model analysis of the two-neutrino $ββ$ and single $β$ branchings in $^{48}\rm Ca$ and $^{96}\rm Zr$Aug 21 2019Aug 22 2019Two-neutrino double-beta-decay matrix elements $M_{2\nu}$ and single beta-decay branching ratios were calculated for $^{48}$Ca and $^{96}$Zr in the interacting nuclear shell model using large single-particle valence spaces with well-tested two-body Hamiltonians. ... More
Consistent large-scale shell-model analysis of the two-neutrino $ββ$ and single $β$ branchings in $^{48}\rm Ca$ and $^{96}\rm Zr$Aug 21 2019Two-neutrino double-beta-decay matrix elements $M_{2\nu}$ and single beta-decay branching ratios were calculated for $^{48}$Ca and $^{96}$Zr in the interacting nuclear shell model using large single-particle valence spaces with well-tested two-body Hamiltonians. ... More
The ${γ^* γ^* \to η_c (1S,2S)}$ transition form factors for spacelike photonsAug 21 2019We derive the light-front wave function (LFWF) representation of the $\gamma^* \gamma^* \to \eta_c(1S)\,,\eta_c(2S)$ transition form factor $F(Q_1^2, Q_2^2)$ for two virtual photons in the initial state. For the LFWF, we use different models obtained ... More
Six-dimensional Myers-Perry rotating black hole cannot be overspunAug 21 2019Though under non-linear accretion, all black holes in four and higher dimensions obey the weak Cosmic Censorship Conjecture, however they generally violate it for the linear test particle accretion with the exception of five dimensional rotating black ... More
Higgs lepton flavor violating decays in Two Higgs Doublet ModelsAug 21 2019The discovery of a non-zero rate for a lepton flavor violating decay mode of the Higgs boson would definitely be an indication of New Physics. We review the prospects for such signal in Two Higgs Doublet Models, in particular for Higgs boson decays into ... More
Neutrino mass model with a modular $S_4$ symmetryAug 21 2019We propose a predictive lepton model under a modular $S_4$ symmetry, and the neutrino mass matrix arises from a combination of canonical seesaw at tree level and radiative seesaw at one-loop level. Supposing the Majorana neutrino to be embedded into doublet ... More
The camera system for the IceCube UpgradeAug 21 2019The IceCube Neutrino Observatory is a cubic kilometer volume neutrino detector installed in the Antarctic at the geographic South Pole. Neutrinos are detected through the observation of Cherenkov light from charged relativistic particles generated in ... More
Heavy quarkonia properties from a hard-wall confinement potential model with conformal symmetry perturbing effectsAug 21 2019Heavy $c\bar c$ and $b\bar b $ quarkonia are considered as systems confined within a hard-wall potential shaped after a linear combination of a cotangent-- with a square co-secant function. Wave functions and energy spectra are then obtained in closed ... More
Ishibashi States, Topological Orders with Boundaries and Topological Entanglement Entropy II -- Cutting through the boundaryAug 21 2019We compute the entanglement entropy in a 2+1 dimensional topological order in the presence of gapped boundaries. Specifically, we consider entanglement cuts that cut through the boundaries. We argue that based on general considerations of the bulk-boundary ... More
Prime-Index Parametrization for Total Neutrino-Nucleon Cross Sections and {\it{pp}} Cross SectionsAug 21 2019A prime number based parametrization for total neutrino-nucleon cross section is presented. The method employs the relation between prime numbers and their indices to reproduce neutrino cross sections for neutrino energies from the $MeV$ to the $PeV$ ... More
Magnetic fields in heavy ion collisions: flow and charge transportAug 20 2019At the earliest times after a heavy-ion collision, the magnetic field created by the spectator nucleons will generate an extremely strong, albeit rapidly decreasing in time, magnetic field. The impact of this magnetic field may have detectable consequences, ... More
Quest for new physics using astrophysical neutrino flavor in IceCubeAug 20 2019We have detected astrophysical neutrinos in IceCube that can be used to probe astrophysical sources at ultra high scales. Here we report a search for anomalous space time effects using astrophysical neutrino flavor data in IceCube. New effective operators ... More
Quest for new physics using astrophysical neutrino flavor in IceCubeAug 20 2019Aug 22 2019We have detected astrophysical neutrinos in IceCube that can be used to probe astrophysical sources at ultra high scales. Here we report a search for anomalous space time effects using astrophysical neutrino flavor data in IceCube. New effective operators ... More
The W and Z scattering as a probe of physics beyond the Standard Model: Effective Field Theory approachAug 20 2019In this work the vector boson scattering process is investigated through the reaction $pp\rightarrow 2 \mathrm{jets} + W^\ast W^\ast \rightarrow 2 \mathrm{jets} + l\nu_l l'\nu_l'$, where $W^\ast$ denote in general off-shell $W^+$, in the EFT approach ... More
Inflationary Phenomenology of Einstein Gauss-Bonnet Gravity Compatible with GW170817Aug 20 2019In this work we shall study Einstein Gauss-Bonnet theories and we investigate when these can have their gravitational wave speed equal to the speed of light, which is unity in natural units, thus becoming compatible with the striking event GW170817. We ... More
Some physical implications of regularization ambiguities in SU(2) gauge-invariant loop quantum cosmologyAug 20 2019The way physics of loop quantum gravity is affected by the underlying quantization ambiguities is an open question. We address this issue in the context of loop quantum cosmology using gauge-covariant fluxes. Consequences are explored for two choices ... More
Non-relativistic susceptibility and a dark matter applicationAug 20 2019When thermal rate equations are derived for the evolution of slow variables, it is often practical to parametrize the right-hand side with chemical potentials. To close the system, the chemical potentials are subsequently re-expressed in terms of the ... More
The negativity contour: a quasi-local measure of entanglement for mixed statesAug 20 2019In this paper, we study the entanglement structure of mixed states in quantum many-body systems using the $\textit{negativity contour}$, a local measure of entanglement that determines which real-space degrees of freedom in a subregion are contributing ... More
A new probe of Axion-Like Particles: CMB polarization distortions due to cluster magnetic fieldsAug 20 2019We propose using the upcoming Cosmic Microwave Background (CMB) ground based experiments to detect the signal of ALPs (Axion like particles) interacting with magnetic fields in galaxy clusters. The conversion between CMB photons and ALPs in the presence ... More
The High-Energy Frontier of the Intensity Frontier: Closing the Dark Photon, Inelastic Dark Matter, and Muon g-2 WindowsAug 20 2019We study hidden sector and long-lived particles at past (CHARM and NuCal), present (NA62 and SeaQuest/DarkQuest), and future (LongQuest) experiments that are at the high-energy frontier of the intensity frontier. We focus on exploring the minimal vector ... More
How much joint resummation do we need?Aug 20 2019Large logarithms that arise in cross sections due to the collinear and soft singularities of QCD are traditionally treated using parton showers or analytic resummation. Parton showers provide a fully-differential description of an event but are challenging ... More
Exotic decays of top partners: mind the search gapAug 20 2019Many standard model extensions, including composite Goldstone Higgs models, predict vector-like fermionic top-partners at the TeV scale. The intensive search programmes by ATLAS and CMS focus on decays into a 3$^{\rm rd}$ generation quark and an electroweak ... More
On the transmission of quantum information through quantum fieldsAug 20 2019We investigate the quantum channel consisting of two localized quantum systems that communicate through a scalar quantum field. We choose a scalar field rather than a tensor or vector field, such as the electromagnetic field, in order to isolate the situation ... More
Holomorphic Chern-Simons theory and affine Gaudin modelsAug 20 2019We relate two formalisms recently proposed for describing classical integrable field theories. The first is based on the action of four-dimensional holomorphic Chern-Simons theory introduced and studied by Costello, Witten and Yamazaki. The second makes ... More
Long distance effects in inclusive rare $B$ decays and phenomenology of $\bar{B}\to X_d \ell^+\ell^-$Aug 20 2019Rare inclusive $B$ decays such as $\bar{B}\to X_{s(d)} \ell^+\ell^-$ are interesting probes for physics beyond the Standard Model. Due to the complementarity to their exclusive counterparts, they might shed light on the anomalies currently seen in exclusive ... More
PICO: Probe of Inflation and Cosmic OriginsAug 20 2019The Probe of Inflation and Cosmic Origins (PICO) is a proposed probe-scale space mission consisting of an imaging polarimeter operating in frequency bands between 20 and 800 GHz. We describe the science achievable by PICO, which has sensitivity equivalent ... More
On polarized scattering equations for superamplitudes of 11D supergravity and ambitwistor superstringAug 20 2019We revisited the formalism of 11D polarized scattering equation by Geyer and Mason from the perspective of spinor frame approach and spinor moving frame formulation of the 11D ambitwistor superstring action. In particular, we rigorously obtain the equation ... More
Enhanced production of $Λ_{c}$ in proton-proton collisions at the LHCAug 20 2019We calculate cross section for production of $D$ mesons and $\Lambda_c$ baryons in proton-proton collisions at the LHC. The cross section for production of $c \bar c$ pairs is calculated within $k_T$-factorization approach with the Kimber-Martin-Ryskin ... More
Production of $J/ψ$ quarkonia in color evaporation model based on $k_{T}$-factorizationAug 20 2019We use a new approach to color evaporation model (CEM) for quarkonium production. The production of $c\bar c$ pairs is performed within $k_T$-factorization approach using different unintegrated gluon distribution functions (UGDF) from the literature. ... More
Electroweak Precision Tests of the SMAug 20 2019A global survey of weak mixing angle measurements at low and high energies is presented. Then I will discuss theoretical uncertainties in precision observables with special emphasis on their correlations. The important role of vacuum polarization in global ... More
Global fits of the SM parametersAug 20 2019I present a global survey of weak mixing angle measurements and other precision experiments and discuss the issue of correlations of the theoretical uncertainties in precision observables. Hadronic vacuum polarization effects complicate global fits in ... More
Summary of Working Group 5: Physics with Heavy FlavoursAug 20 2019We present a summary of heavy-flavour physics at the the time of the DIS2019 conference. This summary is based upon the relevant plenary and parallel talks presented at the workshop. The summary is divided into four broad areas: (1) spectroscopy, (2) ... More
The gluon Sivers function and its process dependence from RHIC dataAug 20 2019We present a phenomenological analysis of available data on single spin asymmetries for pion and $D$ meson production in proton-proton collisions at RHIC within the color gauge invariant generalized parton model (CGI-GPM), which includes initial (ISIs) ... More
Time-Reversed Gamma-Ray Burst Light Curve Characteristics as Transitions between Subluminal and Superluminal MotionAug 20 2019We introduce a simple model to explain the time-reversed and stretched residuals in gamma-ray burst (GRB) pulse light curves. In this model an impactor wave in an expanding GRB jet accelerates from subluminal to superluminal velocities, or decelerates ... More
On the Properties of the Effective Jarlskog Invariant for Three-flavor Neutrino Oscillations in MatterAug 20 2019In this paper, we show that the ratio of the effective Jarlskog invariant $\widetilde{\cal J}$ for leptonic CP violation in three-flavor neutrino oscillations in matter to its counterpart ${\cal J}$ in vacuum $\widetilde{\cal J}/{\cal J} \approx 1/(\widehat{C}^{}_{12} ... More
Cost Reduction of Swapping Bonds Part in Anisotropic Tensor Renormalization GroupAug 20 2019The bottleneck part of anisotropic tensor renormalization group (ATRG) is a swapping bonds part which consists of a contraction of two tensors and a partial singular value decomposition of a matrix, and their computational costs are $O(\chi^{2d+1})$, ... More
Cosmology With Low-Redshift Observations: No Signal For New PhysicsAug 20 2019We analyse various low-redshift cosmological data from Type-Ia Supernova, Baryon Acoustic Oscillations, Time-Delay measurements using Strong-Lensing, $H(z)$ measurements using Cosmic Chronometers and growth measurements from large scale structure observations ... More
Deconvolution of 3-D Gaussian kernelsAug 20 2019Ulmer and Kaissl formulas for the deconvolution of one-dimensional Gaussian kernels are generalized to the three-dimensional case. The generalization is based on the use of the scalar version of the Grad's multivariate Hermite polynomials which can be ... More
Search for dark matter annihilation in the center of the Earth with 8 years of IceCube dataAug 20 2019Dark matter particles in the galactic halo can scatter off particles in celestial bodies such as stars or planets, lose energy and become gravitationally trapped. In this process, an accumulation of dark matter in the center of celestial bodies is expected, ... More
Search for dark matter with metastable mediators with the IceCube observatoryAug 20 2019The IceCube neutrino observatory is a 3D array of photodetectors installed in the Antarctic ice. It consists of 5,160 photomultiplier-tubes spread among 86 vertical strings making a total detector volume of more than a cubic kilometer. It detects neutrinos ... More
Force-free electrodynamics near rotation axis of a Kerr black holeAug 20 2019Despite their potential importance for understanding astrophysical jets, physically realistic exact solutions for magnetospheres around Kerr black holes have not been found, even in the force-free approximation. Instead approximate analytical solutions ... More
Elegant solutions to the 96 GeV diphoton excess in the seesaw extensions of the natural NMSSMAug 20 2019The Next-to Minimal Supersymmetric Standard Model (NMSSM) with a Type-I seesaw mechanism extends the NMSSM by three generations of right-handed neutrino fields to generate neutrino mass. As a byproduct it renders the lightest sneutrino as a viable DM ... More
Gauged $U(1)_{L_μ-L_τ}$ Scotogenic Model in light of $R_{K^{(*)}}$ Anomaly and AMS-02 Positron ExcessAug 20 2019We study the gauged $U(1)_{L_\mu-L_\tau}$ scotogenic model with emphasis on latest measurement of LHCb $R_{K^{(*)}}$ anomaly and AMS-02 positron excess. In this model, neutrino masses are induced at one-loop level with $Z_2$-odd particles, i.e., right-handed ... More
Melonic Dominance in Subchromatic Sextic Tensor ModelsAug 20 2019We study tensor models based on $O(N)^r$ symmetry groups constructed out of rank-$r$ tensors with order-$q$ interaction vertices. We define \textit{subchromatic} tensor models to be those for which $r<q-1$. We focus most of our attention on sextic ($q=6$) ... More
't Hooft-Polyakov monopole and instanton-like topological solution in gauge-Higgs unificationAug 20 2019We consider 't Hooft-Polyakov monopole (TPM) as a topological soliton in the 5-dimensional (5D) theory of gauge-Higgs unification. This scenario provides a very natural framework to incorporate the TPM, since the adjoint scalar is builtin as the extra-space ... More
Analysis of the hidden-charm tetraquark mass spectrum with the QCD sum rulesAug 20 2019In this article, we take the pseudoscalar, scalar, axialvector, vector, tensor (anti)diquark operators as the basic constituents, and construct the scalar, axialvector and tensor tetraquark currents to study the mass spectrum of the ground state hidden-charm ... More
Neutrino Detectors as Tools for Nuclear SecurityAug 20 2019Aug 21 2019For over 40 years, physicists have considered possible uses for neutrino detectors in nuclear nonproliferation, arms control, and fissile materials security. Neutrinos are an attractive fission signature because they readily pass through matter. The same ... More
Non-perturbative approaches to the quantum Seiberg-Witten curveAug 19 2019Aug 21 2019We study various non-perturbative approaches to the quantization of the Seiberg-Witten curve of ${\cal N}=2$, $SU(2)$ super Yang-Mills theory, which is closely related to the modified Mathieu operator. The first approach is based on the quantum WKB periods ... More
Non-perturbative approaches to the quantum Seiberg--Witten curveAug 19 2019We study various non-perturbative approaches to the quantization of the Seiberg-Witten curve of ${\cal N}=2$, $SU(2)$ super Yang-Mills theory, which is closely related to the modified Mathieu operator. The first approach is based on the quantum WKB periods ... More
Inflation in supergravity from field redefinitionsAug 19 2019Supergravity (SUGRA) theories are specified by a few functions, most notably the real K\"ahler function denoted by $G(T_i, \bar {T}_i) = K + \log |W|^2$, where K is a real K\"ahler potential, and W is a holomorphic superpotential. A field redefinition ... More
Deeply inelastic scattering structure functions on a hybrid quantum computerAug 19 2019We outline a strategy to compute deeply inelastic scattering structure functions using a hybrid quantum computer. Our approach takes advantage of the representation of the fermion determinant in the QCD path integral as a quantum mechanical path integral ... More
Astrophysics-independent determination of dark matter parameters from two direct detection signalsAug 19 2019Next-generation dark matter direct detection experiments will explore several orders of magnitude in the dark matter--nucleus scattering cross section below current upper limits. In case a signal is discovered the immediate task will be to determine the ... More
Measurement of the high-energy all-flavor neutrino-nucleon cross section with IceCubeAug 19 2019The flux of high-energy neutrinos passing through the Earth is attenuated due to their interactions with matter. Their transmission probability is modulated by the neutrino interaction cross section and affects the arrival flux at the IceCube Neutrino ... More
Power-enhanced leading-logarithmic QED corrections to $B_q \to μ^+μ^-$Aug 19 2019We provide a systematic treatment of the previously discovered power-enhanced QED corrections to the leptonic decay $B_q\to \mu^+\mu^-$ ($q = d, s$) in the framework of soft-collinear effective theory (SCET). Employing two-step matching on SCET$_\text{I}$ ... More
Top-quark Partial Compositeness beyond the effective field theory paradigmAug 19 2019In theories of Partial Compositeness the top quark is a mixture of a composite and an elementary state, and as a consequence its interactions with gauge bosons are expected to deviate from those of a point-like object. At sufficiently large energies, ... More
Oscillating scalar fields and the Hubble tension: a resolution with novel signaturesAug 19 2019We present a detailed investigation of a sub-dominant oscillating scalar field ('early dark energy', EDE) in the context of resolving the Hubble tension. Consistent with earlier work, but without relying on fluid approximations, we find that a scalar ... More
The Speed of Quantum Information Spreading in Chaotic SystemsAug 19 2019We present a general theory of quantum information propagation in chaotic quantum many-body systems. The generic expectation in such systems is that quantum information does not propagate in localized form; instead, it tends to spread out and scramble ... More
Neutrino mass ordering obscured by non-standard interactionsAug 19 2019The recent data of the two long baseline experiments NO$\nu$A and T2K, interpreted in the standard 3-flavor scenario, provide a $\sim2.4\sigma$ indication in favor of the normal neutrino mass ordering. We show that such an indication is completely washed ... More
MiNNLO$_{\text{PS}}$: A new method to match NNLO QCD to parton showersAug 19 2019We present a novel method to combine QCD calculations at next-to-next-to-leading order (NNLO) with parton shower (PS) simulations, that can be applied to the production of heavy systems in hadronic collisions, such as colour singlets or a $t\bar{t}$ pair. ... More
A uniform locally constant field approximation for photon-seeded pair productionAug 19 2019A challenge to upcoming experiments that plan to collide a particle beam with laser pulses of moderate intensity is how to correctly incorporate quantum effects into simulation frameworks. Using a uniform approach, we extend the widely-used locally constant ... More
Reviving Millicharged Dark Matter for 21-cm CosmologyAug 19 2019The existence of millicharged dark matter (mDM) can leave a measurable imprint on 21-cm cosmology through mDM-baryon scattering. However, the minimal scenario is severely constrained by existing cosmological bounds on both the fraction of dark matter ... More
Direct Deflection of Particle Dark MatterAug 19 2019We propose a new strategy to directly detect light particle dark matter that has long-ranged interactions with ordinary matter. The approach involves distorting the local flow of dark matter with time-varying fields and measuring these distortions with ... More
Benchmarking simplified template cross sections in $WH$ productionAug 19 2019Simplified template cross sections define a framework for the measurement and dissemination of kinematic information in Higgs measurements. We benchmark the currently proposed setup in an analysis of dimension-6 effective field theory operators for $WH$ ... More
Jet charge modification in dense QCD matterAug 19 2019Jet production and jet substructure modification in heavy-ion collisions have played an essential role in revealing the in-medium evolution of parton showers and the determination of the properties of strongly-interacting matter under extreme conditions. ... More
Origin of ultra-light fields during inflation and their suppressed non-GaussianityAug 19 2019We study the structure of multi-field inflation models where the primordial curvature perturbation is able to vigorously interact with an ultra-light isocurvature field -- a massless fluctuation orthogonal to the background inflationary trajectory in ... More
Neutrino Fluence from Gamma-Ray Bursts: Off-Axis View of Structured JetsAug 19 2019We investigate the expected high-energy neutrino fluence from internal shocks produced in the relativistic outflow of gamma-ray bursts. Previous model predictions have primarily focussed on on-axis observations of uniform jets. Here we present a generalization ... More
SU(2) non-Abelian gauge field theory in one dimension on digital quantum computersAug 19 2019An improved mapping of one-dimensional SU(2) non-Abelian gauge theory onto qubit degrees of freedom is presented. This new mapping allows for a reduced unphysical Hilbert space. Insensitivity to interactions within this unphysical space is exploited to ... More
Fifteen-vertex models with non-symmetric $R$ matricesAug 19 2019In this work, we employ the algebraic-differential method recently developed by the author to solve the Yang-Baxter equation for arbitrary fifteen-vertex models satisfying the ice-rule. We show that there are four different families of such regular $R$ ... More
Cross section ratios as a precision tool for $t\bar{t}γ$Aug 19 2019We report on our recent calculation for the off-shell ttA process and its potential for precision measurements by constructing ratios of total and differential cross sections. Precise theoretical predictions for these ratios can help to constrain new ... More
Exploring the scattering of vector bosons at LHCbAug 19 2019In this letter, I propose a strategy to measure vector-boson scattering (VBS) at the LHCb experiment. The typical VBS topology features two energetic back-to-back jets with large rapidities and two gauge bosons produced centrally. Such a topology is well ... More
Chiral condensates in massless QCD and the $U(1)_A$ boson massAug 19 2019The $U(1)_A$ boson mass is calculated through the phenomenological characteristics of the vacuum related to spontaneous breaking of chiral symmetry in QCD. The mass is determined by the mixed quark-gluon condensate $\langle \bar q G q \rangle$ that emerges ... More