Mon·Nov 22, 2021Monday·November 22, 2021

1. 01*

   Two Schrödinger-like Equations for hadrons

   Ruben Sandapen🇨🇦

   In this talk, based on [1,2], I argue that the holographic Schrödinger Equation of $(3+1)$-dim, conformal light-front QCD and the 't Hooft Equation of $(1+1)$-dim, large $N_c$ QCD, can be complementary to each other in providing a first approximation to hadron spectroscopy. Together, the two equations play a role in hadronic physics analogous that of the ordinary Schrödinger Equation in atomic physics.

   hep-phEPJ Web Conf.(2022)·1 citation
2. 02*

   Step: a tool to perform tests of smoothness on differential distributions based on expansion of polynomials

   Patrick L.S. Connor🇩🇪 · Radek Žlebčík🇨🇿

   We motivate and describe a method based on fits with polynomials to test the smoothness of differential distributions. As a demonstration, we apply the method to several measurements of inclusive jet double-differential cross section in the jet transverse momentum and rapidity at the Tevatron and LHC. This method opens new possibilities to test the quality of differential distributions used for the extraction of physics quantities such as the strong coupling.

   hep-phhep-exSciPost Phys.Core(2023)·6 citations
3. 03*

   Improved description of di-lepton production in ${\tau }^{-}\to {\nu }_{\tau }{P}^{-}$ decays

   Adolfo Guevara🇪🇸 · Gabriel López Castro🇲🇽 · Pablo Roig🇲🇽

   Recently, the Belle collaboration reported the first measurements of the ${\tau }^{-}\to {\nu }_{\tau }{\pi }^{-}{e}^{+}{e}^{-}$ branching fraction and the spectrum of the pion-dielectron system. In an analysis previous to Belle's results, we evaluated this branching fraction which turned out to be compatible with that reported by Belle, although with a large uncertainty. This is the motivation to seek for improvements on our previous evaluation of ${\tau }^{-}\to {\nu }_{\tau }{\pi }^{-}{\ell }^{+}{\ell }^{-}$ decays ($\ell =e,\mu$). In this paper we improve our calculation of the $W{P}^{-}{\gamma }^{\ast }$ vertex by including flavour symmetry breaking effects in the framework of the Resonance Chiral Theory. We impose QCD short-distance behaviour to constrain most parameters and data on the ${\pi }^{-}{e}^{+}{e}^{-}$ spectrum reported by Belle to fix the remaining free ones. As a result, improved predictions for the branching ratios and hadronic/leptonic spectra are reported, in good agreement with observations. Analogous calculations for the strangeness-changing ${\tau }^{-}\to {\nu }_{\tau }{K}^{-}{\ell }^{+}{\ell }^{-}$ transitions are reported for the first time. Albeit one expects the $m_{\pi {\mu }^{+}{\mu }^{-}}$ spectrum to be measured in Belle-II and the observables with $\ell =e$ can be improved, it is rather unlikely that the $K$ channels can be measured due to the suppression factor $|V_{ud}/V_{us}{|}^2=0.05$.

   hep-phPRD(2022)·15 citations
4. 04*

   The compressibility of quark matter under strong magnetic field in the NJL model

   Li Yang🇨🇳 · Xin-Jian Wen🇨🇳

   The compressibility of magnetized quark matter is investigated in the SU(2) NJL model. The increases of the chemical potential and the temperature can reduce the compressibility, and lead to the much stiffer equation of state. The variation of the compressibility with the magnetic field will depend on the phase region. Due to the anisotropic structure, the compressibility is different in the directions parallel and perpendicular to the field. The discontinuity of longitudinal compressibility with the chemical potential and the temperature captures the signature of a first-order chiral phase transition and the crossover at high temperature. Moreover, the magnetic-field-and-temperature running coupling would have an important effect on the position of the phase transition. Under the lowest landau level approximation at zero temperature, the longitudinal compressibility has a direct inverse proportional relation to the magnetic field strength and the chemical potential square as ${\kappa }_{\mathrm{LLL},\chi }^{\parallel }\propto 1/(eB{\mu }^2)$.

   hep-phnucl-thPRD(2021)·7 citations
5. 05*

   Probing New Physics with heavy hadron decays

   Pietro Colangelo🇮🇹 · Fulvia De Fazio🇮🇹 · Francesco Loparco🇮🇹

   The increasing number of flavour anomalies calls for the investigation of new processes where tensions similar to the observed ones could emerge. Observables sensitive to physics beyond the Standard Model need to be identified. We discuss the inclusive semileptonic decays of polarized beauty baryons, computed through the heavy quark expansion at $\mathcal{O}(1/m_b^3)$ and at the leading order in ${\alpha }_s$. We account for New Physics interactions in a model-independent way, extending the Standard Model $b\to U\ell {\bar{\nu }}_{\ell }$ low energy Hamiltonian (with $U=u,c$ and $\ell =e,\mu ,\tau$) with the inclusion of the full set of D=6 semileptonic operators with left-handed neutrinos. We identify a set of promising observables, the study of which can be included in the physics programmes of future facilities, such as FCC-e.

   hep-phhep-exhep-latPoS(2022)·0 citations
6. 06*

   Quenched glueball spectrum from functional equations

   Markus Q. Huber🇩🇪 · Christian S. Fischer🇩🇪 · Hèlios Sanchis-Alepuz🇦🇹

   We give an overview of results for the quenched glueball spectrum from two-body bound state equations based on the 3PI effective action. The setup, which uses self-consistently calculated two- and three-point functions as input, is completely self-contained and does not have any free parameters except for the coupling. The results for $J^{\mathsf{PC}}=0^{\pm +},2^{\pm +},3^{\pm +},4^{\pm +}$ are in good agreement with recent lattice results where available. For the pseudoscalar glueball, we present first results from a two-loop complete calculation, rendering also the bound state calculation fully self-consistent.

   hep-phEPJ Web Conf.(2022)·5 citations
7. 07*

   Data-driven analysis of a SUSY GUT of flavour

   Jordan Bernigaud🇩🇪 · Adam K. Forster🇬🇧 · Björn Herrmann🇫🇷 · Stephen F. King🇬🇧 · Werner Porod🇩🇪 · Samuel J. Rowley🇬🇧

   We present a data-driven analysis of a concrete Supersymmetric (SUSY) Grand Unified Theory (GUT) of flavour, based on $SU(5)\times S_4$, which predicts charged fermion and neutrino mass and mixing, and where the mass matrices of both the Standard Model and the Supersymmetric particles are controlled by a common symmetry at the GUT scale. This framework also predicts non-vanishing non-minimal flavour violating effects, motivating a sophisticated data-driven parameter analysis to uncover the signatures and viability of the model. This computer-intensive Markov-Chain-Monte-Carlo (MCMC) based analysis includes a large range of flavour as well as dark matter and SUSY observables, predicts distributions for a range of physical quantities which may be used to test the model. The predictions include maximally mixed sfermions, $\mu \to e\gamma$ close to its experimental limit and successful bino-like dark matter with nearby winos (making direct detection unlikely), implying good prospects for discovering winos and gluinos at forthcoming collider runs. The results also demonstrate that the Georgi-Jarlskog mechanism does not provide a good description of the splitting of down type quark masses and charged leptons, while neutrinoless double beta decay is predicted at observable rates.

   hep-phJHEP(2022)·4 citations
8. 08*

   The $D_s^{+}\to {\pi }^{+}{K}_s^0{K}_s^0$ reaction \\and the $I=1$ partner of the $f_0(1710)$ state

   L. R. Dai🇨🇳 · E. Oset🇪🇸 · L. S. Geng🇨🇳

   We have identified the decay modes of the $D_s^{+}\to {\pi }^{+}{K}^{+}{K}^{-},{\pi }^{+}{K}_s^0{K}_s^0$ reactions producing two vector mesons and one pseudoscalar. The posterior vector-vector interaction generates two resonances that we associate to the $f_0(1710)$ and the $a_0(1710)$ recently claimed. We find two acceptable scenarios that give results for the ratio of the branching ratios of these two reactions in agreement with experiment. With these two scenarios we make predictions for the branching ratios of the $D_s^{+}\to {\pi }^0{K}^{+}{K}_s^0$ reaction, finding values within the range of $(2.0\pm 0.7)\times 10^{-3}$. Comparison of these predictions with coming experimental results on that latter reaction will be very most useful to deepen our understanding on the nature of these two resonances.

   hep-phEPJC(2022)·35 citations
9. 09*

   Cluster Reducibility of Multiquark Operators and Tetraquark-Adequate QCD Sum Rules

   Wolfgang Lucha🇦🇹 · Dmitri Melikhov🇷🇺 · Hagop Sazdjian🇫🇷

   If connecting properties of a multiquark hadron with those exhibited by its constituents, QCD sum rules inferred along the routes of traditional wisdom necessarily involve contributions not related at all to and thus not presenting information about multiquarks. Realizing this deficiency, we propose to increase, for the example of tetraquarks, the predictive power of the QCD sum-rule formalism by disposal of all of the unwanted contributions from the very beginning; this move is easily accomplished by subjecting the contributions to our perspicuous selection criterion.

   hep-phhep-thnucl-thRev.Mex.Fis.Suppl.(2022)·2 citations
10. 10*

    Thermal modification of open heavy-flavor mesons from an effective hadronic theory

    G. Montana🇪🇸

    We have developed a self-consistent theoretical approach to study the modification of the properties of heavy mesons in hot mesonic matter which takes into account chiral and heavy-quark spin-flavor symmetries. The heavy-light meson-meson unitarized scattering amplitudes in coupled channels incorporate thermal corrections by using the imaginary-time formalism, as well as the dressing of the heavy mesons with the self-energies. We report our results for the ground-state thermal spectral functions and the implications for the excited mesonic states generated dynamically in the heavy-light molecular model. We have applied these to the calculation of meson Euclidean correlators and transport coefficients for D mesons and summarize here our findings.

    hep-phnucl-thEPJ Web Conf.(2022)·0 citations
11. 11*

    Neutrinoless double-beta decay and lepton flavor violation in discrete flavor symmetric left-right symmetric model

    Bichitra Bijay Boruah🇮🇳 · Mrinal Kumar Das🇮🇳

    In this work, we have studied neutrino less double beta decay(NDBD) and charged lepton flavor violation(CLFV) in a generic Left-Right symmetric model (LRSM). In this framework, type-I and type-II seesaw terms arise naturally. We have used $A_4\times Z_2$ discrete flavor symmetry to realize the LRSM. Within the model, we have considered type-I and type-II dominant cases and analyzed the new physics contributions to the NDBD process coming from different particles of LRSM. We tried to find the leading order contributions to NDBD in type-I and type-II seesaw along with the decay rate of the process in our work. We have also studied different charged lepton flavor violating processes such as $\mu \to 3e$ and $\mu \to e\gamma$ and correlated with neutrino mass within the model.

    hep-phInt.J.Mod.Phys.A(2022)·10 citations
12. 12*

    Hadrophilic Dark Sectors at the Forward Physics Facility

    Brian Batell🇺🇸 · Jonathan L. Feng🇺🇸 · Max Fieg🇺🇸 · Ahmed Ismail🇺🇸 · Felix Kling🇩🇪 · Roshan Mammen Abraham🇺🇸 · Sebastian Trojanowski🇵🇱

    Models with light dark sector and dark matter particles motivate qualitatively new collider searches. Here we carry out a comprehensive study of hadrophilic models with U(1)${}_B$ and U(1)${}_{B-3L_{\tau }}$ gauge bosons coupled to light dark matter. The new mediator particles in these models couple to quarks, but have suppressed couplings to leptons, providing a useful foil to the well-studied dark photon models. We consider current bounds from accelerator and collider searches, rare anomaly-induced decays, neutrino non-standard interactions, and dark matter direct detection. Despite the many existing constraints, these models predict a range of new signatures that can be seen in current and near future experiments, including dark gauge boson decays to the hadronic final states ${\pi }^{+}{\pi }^{-}{\pi }^0$, ${\pi }^0\gamma$, $K^{+}{K}^{-}$, and $K_S{K}_L$ in FASER at LHC Run 3, enhancements of ${\nu }_{\tau }$ scattering rates in far-forward neutrino detectors, and thermal dark matter scattering in FLArE in the HL-LHC era. These models therefore motivate an array of different experiments in the far-forward region at the LHC, as could be accommodated in the proposed Forward Physics Facility.

    hep-phhep-exPRD(2022)·39 citations
13. 13*

    MicroBooNE and the ${\nu }_e$ Interpretation of the MiniBooNE Low-Energy Excess

    C. A. Argüelles🇺🇸 · I. Esteban🇺🇸 · M. Hostert🇨🇦 · K. J. Kelly🇨🇭 · J. Kopp🇨🇭 · P. A. N. Machado🇺🇸 · I. Martinez-Soler🇺🇸 · Y. F. Perez-Gonzalez🇬🇧

    A new generation of neutrino experiments is testing the $4.8\sigma$ anomalous excess of electron-like events observed in MiniBooNE. This is of huge importance for particle physics, astrophysics, and cosmology, not only because of the potential discovery of physics beyond the Standard Model, but also because the lessons we will learn about neutrino-nucleus interactions will be crucial for the worldwide neutrino program. MicroBooNE has recently released results that appear to disfavor several explanations of the MiniBooNE anomaly. Here, we show quantitatively that MicroBooNE results, while a promising start, unquestionably do not probe the full parameter space of sterile neutrino models hinted at by MiniBooNE and other data, nor do they probe the ${\nu }_e$ interpretation of the MiniBooNE excess in a model-independent way. Our analysis code is fully available in https://github.com/Harvard-Neutrino/MicroBooNE-analysis-2021.

    hep-phastro-ph.COhep-exPRL(2022)·105 citations
14. 14*

    Q-Monopole-Ball: A Topological and Nontopological Soliton

    Yang Bai🇺🇸 · Sida Lu🇮🇱 · Nicholas Orlofsky🇨🇦

    Magnetic monopoles and Q-balls are examples of topological and nontopological solitons, respectively. A new soliton state with both topological and nontopological charges is shown to also exist, given a monopole sector with a portal coupling to an additional scalar field $S$ with a global $U(1)$ symmetry. This new state, the Q-monopole-ball, is more stable than an isolated Q-ball made of only $S$ particles, and it could be stable against fissioning into monopoles and free $S$ particles. Stable Q-monopole-balls can contain large magnetic charges, providing a novel nongravitational mechanism for binding like-charged monopoles together. They could be produced from a phase transition in the early universe and account for all dark matter.

    hep-phhep-thJHEP(2022)·19 citations
15. 15*

    Towards testing the magnetic moment of the tau at one part per million

    Andreas Crivellin🇨🇭 · Martin Hoferichter🇨🇭 · J. Michael Roney🇨🇦

    If physics beyond the Standard Model (BSM) explains the $4.2\sigma$ difference between the Standard-Model and measured muon anomalous magnetic moment, $a_{\mu }$, minimal flavor violation predicts a shift in the analog quantity for the $\tau$ lepton, $a_{\tau }$, at the $10^{-6}$ level, and even larger effects are possible in generic BSM scenarios such as leptoquarks. We show that this produces equivalent BSM deviations in the Pauli form factor, $F_2(s)$, at $s=(10\text{GeV}{)}^2$, and report the first complete two-loop prediction of $\text{Re}{F}_2^{\text{eff}}(100{\text{GeV}}^2)=-268.77(50)\times 10^{-6}$ for resonant $\tau$-pair production in $e^{+}{e}^{-}\to {\rm Y}(nS)\to$ ${\tau }^{+}{\tau }^{-}$, $n=1,2,3$. $\text{Re}{F}_2^{\text{eff}}$ can be measured from $e^{-}$-helicity-dependent transverse and longitudinal asymmetries in $\tau$-pair events, which requires a longitudinally polarized $e^{-}$ beam. We discuss how Belle II asymmetry measurements could probe $a_{\tau }^{\text{BSM}}$ at $10^{-6}$, assuming such a polarization upgrade of the SuperKEKB $e^{+}{e}^{-}$ collider, and conclude by outlining the next steps to be taken in theory and experiment along this new avenue for exploring realistic BSM effects in $a_{\tau }$.

    hep-phhep-exnucl-exnucl-thPRD(2022)·66 citations
16. 16*

    Lepton-pair production at hadron colliders at N${}^3$LO in QCD

    Claude Duhr🇩🇪 · Bernhard Mistlberger🇺🇸

    We compute for the first time the complete corrections at N${}^3$LO in the strong coupling constant to the inclusive neutral-current Drell-Yan process including contributions from both photon and $Z$-boson exchange. Our main result is the computation of the QCD corrections to the inclusive production cross section of an axial-vector boson to third order in the strong coupling in a variant of QCD with five massless quark flavours. Since the axial anomaly does not cancel for an odd number of flavours, we also consistently include non-decoupling effects in the top-quark mass through three loops. We perform a phenomenological study of our results, and we present for the first time predictions for the inclusive Drell-Yan process at the LHC at this order in QCD perturbation theory.

    hep-phJHEP(2022)·118 citations
17. 17*

    New physics searches with the International Large Detector at the ILC

    Mikael Berggren🇩🇪

    Although the LHC experiments have searched for and excluded many proposed new particles up to masses close to 1 TeV, there are many scenarios that are difficult to address at a hadron collider. This talk will review a number of these scenarios and present the expectations for searches at an electron-positron collider such as the International Linear Collider. The cases discussed include the light Higgsino, the \stau~ slepton in the coannihilation region relevant to dark matter, as well as other BSM signatures. The studies are based on the ILD concept at the ILC.

    ↳ hep-exhep-phPoS(2022)·2 citations
18. 18*

    More on Emergent Dark Energy from Unparticles

    Michał Artymowski🇮🇱 · Ido Ben-Dayan🇮🇱 · Utkarsh Kumar🇮🇱

    In a recent paper \cite{Artymowski:2020zwy} we suggested the possibility that the present acceleration of the Universe is due to thermodynamical behavior of unparticles. The model is free of scalar fields, modified gravity, a Cosmological Constant (CC), the coincidence problem, initial conditions problem and possesses interesting distinct predictions regarding the equation of state of Dark Energy, the growth rate and the number of relativistic degrees of freedom at BBN and CMB decoupling. In this work, we relate to a recent paper \cite{Abchouyeh:2021wey}, which discusses a similar setup of unparticles with and without a CC as an external source of late-time acceleration. The authors have shown how such a model is inconsistent with the data. We show that these claims are viable only in a particular part of the parameter space and that model \cite{Artymowski:2020zwy} stands tall. We further suggest a consistency condition in terms of observables. We then fit publicly available supernovae data to derive the expected Hubble parameter and constrain the parameters of the model.

    ↳ astro-ph.COhep-phPRD(2022)·11 citations
19. 19*

    Search for GeV-scale Dark Matter Annihilation in the Sun with IceCube DeepCore

    R. Abbasi · M. Ackermann · J. Adams · J. A. Aguilar · M. Ahlers · M. Ahrens · J.M. Alameddine · C. Alispach · A. A. Alves Jr. · N. M. Amin · K. Andeen · T. Anderson and 368 other authors

    The Sun provides an excellent target for studying spin-dependent dark matter-proton scattering due to its high matter density and abundant hydrogen content. Dark matter particles from the Galactic halo can elastically interact with Solar nuclei, resulting in their capture and thermalization in the Sun. The captured dark matter can annihilate into Standard Model particles including an observable flux of neutrinos. We present the results of a search for low-energy ($<$ 500 GeV) neutrinos correlated with the direction of the Sun using 7 years of IceCube data. This work utilizes, for the first time, new optimized cuts to extend IceCube's sensitivity to dark matter mass down to 5 GeV. We find no significant detection of neutrinos from the Sun. Our observations exclude capture by spin-dependent dark matter-proton scattering with cross-section down to a few times $10^{-41}$ cm${}^2$, assuming there is equilibrium with annihilation into neutrinos/anti-neutrinos for dark matter masses between 5 GeV and 100 GeV. These are the strongest constraints at GeV energies for dark matter annihilation directly to neutrinos.

    ↳ astro-ph.HEhep-phPRD(2022)·103 citations
20. 20*

    Status of searches for electroweak-scale supersymmetry after LHC Run 2

    Wolfgang Adam🇦🇹 · Iacopo Vivarelli🇬🇧

    The second period of datataking at the Large Hadron Collider (LHC) has provided a large dataset of proton-proton collisions that is unprecedented in terms of its centre-of-mass energy of 13 TeV and integrated luminosity of almost 140 fb${}^{-1}$. These data constitute a formidable laboratory for the search for new particles predicted by models of supersymmetry. The analysis activity is still ongoing, but a host of results on supersymmetry has already been released by the general purpose LHC experiments ATLAS and CMS. In this paper, we provide a map into this remarkable body of research, which spans a multitude of experimental signatures and phenomenological scenarios. In the absence of conclusive evidence for the production of supersymmetric particles we discuss the constraints obtained in the context of various models. We finish with a short outlook on the new opportunities for the next runs that will be provided by the upgrade of detectors and accelerator.

    ↳ hep-exhep-phInt.J.Mod.Phys.A(2022)·23 citations
21. 21*

    The static force from generalized Wilson loops using gradient flow

    Viljami Leino🇩🇪 · Nora Brambilla🇩🇪 · Julian Mayer-Steudte🇩🇪 · Antonio Vairo🇩🇪

    We explore a novel approach to compute the force between a static quark-antiquark pair with the gradient flow algorithm on the lattice. The approach is based on inserting a chromoelectric field in a Wilson loop. The renormalization issues, associated with the finite size of the chromoelectric field on the lattice, can be solved with the use of gradient flow. We compare numerical results for the flowed static potential to our previous measurement of the same observable without a gradient flow.

    ↳ hep-lathep-phhep-thEPJ Web Conf.(2022)·14 citations
22. 22*

    Chromoelectric and chromomagnetic correlators at high temperature from gradient flow

    Julian Mayer-Steudte🇩🇪 · Nora Brambilla🇩🇪 · Viljami Leino🇩🇪 · Peter Petreczky🇺🇸

    The heavy quark diffusion coefficient is encoded in the spectral functions of the chromoelectric and the chromomagnetic correlators that are calculable on the lattice. We study the chromoelectric and the chromomagnetic correlator in the deconfined phase of SU(3) gauge theory using Symanzik flow at two temperatures $1.5T_c$ and $10000T_c$, with $T_c$ being the phase transition temperature. To control the lattice discretization errors and perform the continuum limit we use several temporal lattice extents $N_t=16,20,24$ and 28. We observe that the flow time dependence of the chromomagnetic correlator is quite different from chromoelectric correlator most likely due to the anomalous dimension of the former as has been pointed out recently in the literature.

    ↳ hep-lathep-phhep-thnucl-thPoS(2022)·8 citations
23. 23*

    Gauge Enhanced Quantum Criticality Between Grand Unifications: Categorical Higher Symmetry Retraction

    Juven Wang🇺🇸 · Yi-Zhuang You🇺🇸

    Prior work [arXiv:2106.16248] shows that the Standard Model (SM) naturally arises near a gapless quantum critical region between Georgi-Glashow (GG) $su(5)$ and Pati-Salam (PS) $su(4)\times su(2)\times su(2)$ models of quantum vacua (in a phase diagram or moduli space), by implementing a modified $so(10)$ Grand Unification (GUT) with a Spin(10) gauge group plus a new discrete Wess-Zumino Witten term matching a 4d nonperturbative global mixed gauge-gravity $w_2{w}_3$ anomaly. In this work, we include Barr's flipped $su(5)$ model into the quantum landscape, showing these four GUT-like models arise near the quantum criticality near SM. Highlights include: First, we find the precise GG or flipped $u(5)$ gauge group requires to redefine a Lie group U(5)${}_{\hat{q}}$ with $\hat{q}=2$ or $3$ (instead of non-isomorphic analog $\hat{q}=1$ or 4), and different $\hat{q}$ are related by multiple covering. Second, we show that the GG and flipped $u(5)$ are two different symmetry-breaking vacua of the same order parameter separated by a first-order Landau-Ginzburg transition. We also show that analogous 3+1d deconfined quantum criticalities, both between GG and PS, and between the flipped $u(5)$ and PS, are beyond Landau-Ginzburg paradigm. Third, topological quantum criticality occurs by tuning between the 15n vs 16n scenarios. Fourth, we explore the generalized higher global symmetries in the SM and GUTs. Gauging the ${\mathbb{Z}}_2$ flip symmetry between GG and flipped $u(5)$ models, leads to a potential categorical higher symmetry that is a non-invertible global symmetry: within a gauge sector $(u(1)\times u(1))⋊{\mathbb{Z}}_2$, the fusion rule of 2d topological surface operator splits. However, the un-Higgs Spin(10) at UV retracts this categorical symmetry.

    ↳ hep-thcond-mat.str-elhep-lathep-ph+270 citations
24. 24*

    New limits on light dark matter - proton cross section from the cosmic large-scale structure

    Keir K. Rogers🇨🇦 · Cora Dvorkin🇺🇸 · Hiranya V. Peiris🇬🇧

    We set the strongest limits to-date on the velocity-independent dark matter (DM) - proton cross section $\sigma$ for DM masses $m=10\mathrm{keV}$ to $100\mathrm{GeV}$, using large-scale structure traced by the Lyman-alpha forest: e.g., a 95% lower limit $\sigma <6\times 10^{-30}{\mathrm{cm}}^2$, for $m=100\mathrm{keV}$. Our results complement direct detection, which has limited sensitivity to sub-GeV DM. We use an emulator of cosmological simulations, combined with data from the smallest cosmological scales used to-date, to model and search for the imprint of primordial DM-proton collisions. Cosmological bounds are improved by up to a factor of 25.

    ↳ astro-ph.COhep-phPRL(2022)·91 citations

* Reconstructed cohort: no mailing for this day survives in the archive. Papers are grouped by their submission times and arXiv's announcement cut-off, assuming announcement without delay; positions follow identifier order. Validated at ~91% exact-day agreement against the archived era.