Fri·May 28, 2021Friday·May 28, 2021

1. 01*

   Monopole-Antimonopole Pair Production in Primordial Magnetic Fields

   Takeshi Kobayashi🇯🇵

   We show that monopoles can be pair produced by cosmological magnetic fields in the early universe. The pair production gives rise to relic monopoles, and at the same time induces a self-screening of the magnetic fields. By studying these effects we derive limits on the monopole mass, and also on the initial amplitude of primordial magnetic fields. Monopoles of GUT scale mass can even be produced if primordial magnetic fields exist at sufficiently high redshifts.

   hep-phastro-ph.COhep-thPRD(2021)·25 citations
2. 02*

   Hunting super-heavy dark matter with ultra-high energy photons

   Luis A. Anchordoqui🇺🇸 · Corinne Berat🇫🇷 · Mario E. Bertaina🇮🇹 · Antonella Castellina🇮🇹 · Olivier Deligny🇫🇷 · Ralph Engel🇩🇪 · Glennys R. Farrar🇺🇸 · Piera L. Ghia🇫🇷 · Dan Hooper🇺🇸 · Oleg Kalashev🇷🇺 · Mikhail Kuznetsov🇷🇺 · Marcus Niechciol🇩🇪 and 8 other authors

   At any epoch, particle physics must be open to completely unexpected discoveries, and that is reason enough to extend the reach of searches for ultra-high energy (UHE) photons. The observation of a population of photons with energies $E\gtrsim 100$ EeV would for example imply the existence of either a completely new physical phenomena, or particle acceleration mechanisms heretofore never seen or imagined. But as we outline in this Letter of Interest, there are also good arguments for super-heavy dark matter (SHDM) in a parameter range such that it could be discovered via its decays to, in particular, UHE photons. Only ultra-high energy cosmic ray observatories have capabilities to detect UHE photons. We first investigate how current and future observations can probe and constrain SHDM models in important directions, and then outline some of the scenarios that motivate such searches. We also discuss connections between constraints on SHDM and on the parameter values of cosmological models.

   hep-phastro-ph.HEAstropart.Phys.(2021)·30 citations
3. 03*

   Case for quarkyoniclike matter from a constituent quark model

   Aaron Park🇰🇷 · Kie Sang Jeong🇺🇸 · Su Houng Lee🇰🇷

   Based on the fact that the constituent quark model reproduces the recent lattice result on baryon-baryon repulsion at short distance and that it includes the quark dynamics with confinement, we analyze to what extent the quarkyonic modes appear in the phase space of baryons as one increases the density before only quark dynamics and hence deconfinement occurs. We find that as one increases the baryon density, the initial quark mode that appears will involve the $d(u)$-quark from a neutron (proton), which will leave the most attractive ($ud$) diquark intact.

   hep-phnucl-thPRD(2021)·11 citations
4. 04*

   Physics reach of a long-lived particle detector at Belle II

   Sascha Dreyer🇩🇪 · Torben Ferber🇩🇪 · Anastasiia Filimonova🇳🇱 · Camilo Garcia-Cely🇩🇪 · Christopher Hearty🇨🇦 · Savino Longo🇩🇪 · Ruth Schäfer🇩🇪 · Kai Schmidt-Hoberg🇩🇪 · Michele Tammaro🇸🇮 · Karim Trabelsi🇫🇷 · Susanne Westhoff🇩🇪 · Jure Zupan🇺🇸

   We have studied three realistic benchmark geometries for a new far detector GAZELLE to search for long-lived particles at the \superkekb accelerator in Tsukuba, Japan. The new detector would be housed in the same building as Belle II and observe the same $e^{+}{e}^{-}$ collisions. To assess the discovery reach of GAZELLE, we have investigated three new physics models that predict long-lived particles: heavy neutral leptons produced in tau lepton decays, axion-like particles produced in $B$ meson decays, and new scalars produced in association with a dark photon, as motivated by inelastic dark matter. We do not find significant gains in the new physics discovery reach of GAZELLE compared to the Belle II projections for the same final states. The main reasons are the practical limitations on the angular acceptance and size of GAZELLE, effectively making it at most comparable to Belle II, even though backgrounds in the far detector could be reduced to low rates. A far detector for long-lived particles would be well motivated in the case of a discovery by Belle II, since decays inside GAZELLE would facilitate studies of the decay products. Depending on the placement of GAZELLE, searches for light long-lived particles produced in the forward direction or signals of a confining hidden force could also benefit from such a far detector. Our general findings could help guide the design of far detectors at future electron-positron colliders such as the ILC, FCC-ee or CEPC.

   hep-phhep-ex30 citations
5. 05*

   BHLS${}_2$ Upgrade : $\tau$ spectra, muon HVP and the [${\pi }^0,\eta ,{\eta }^{\prime }$] System

   Maurice Benayoun🇫🇷 · Luigi DelBuono🇫🇷 · Friedrich Jegerlehner🇩🇪

   The generic Hidden Local Symmetry (HLS) model has given rise to the BHLS${}_2$ variant which introduces symmetry breaking in the vector meson sector; the central mechanism is a modification of the covariant derivative at the root of the HLS approach. However, the description of the Belle $\tau$ dipion spectra is not satisfactory whereas the dealing with its annihilation sector ($e^{+}{e}^{-}\to {\pi }^{+}{\pi }^{-}/{\pi }^{+}{\pi }^{-}{\pi }^0/{\pi }^0\gamma /\eta \gamma /K^{+}{K}^{-}/K_L{K}_S$) is optimum. This issue is solved by an additional breaking term allowing to include the $[{\pi }^0,\eta ,{\eta }^{\prime }]$ system. This extension of the usual 't~Hooft determinant term only affects the BHLS${}_2$ kinetic energy term. One obtains a fair account for the $\tau$ dipion spectra as well as for the annihilation channels. The Belle dipion spectrum provides evidence for a violation of CVC in the $\tau$ lepton decay; this evidence is strengthened by imposing the conditions $<0|J_{\mu }^q|[q^{\prime }\overline{q^{\prime }}](p)>=i{p}_{\mu }{f}_q{\delta }_{q{q}^{\prime }},\{[q\overline{q}],q=u,d,s\}$ on BHLS${}_2$ axial current matrix elements. BHLS${}_2$ is found to recover the usual (completed) formulae for the [${\pi }^0,\eta ,{\eta }^{\prime }$] mixing parameters and the global fits return mixing parameter values in agreement with expectations and better uncertainties. Updating the muon HVP, one argues that the strong tension between the KLOE and BaBar pion form factors imposes to provide two solutions : $a_{\mu }^{HVP-LO}(\mathrm{KLOE})=687.31\pm 2.93$ and $a_{\mu }^{HVP-LO}(\mathrm{BaBar})=692.36\pm 2.95$, in units of $10^{-10}$, rather than some combination of these. Taking into account common systematics, their differences with the experimental BNL-FNAL average value exhibit significances $>5.4\sigma$ (KLOE) and $>4.1\sigma$ (BaBar) with fit probabilities favoring the former.

   hep-phhep-exEPJC(2022)·15 citations
6. 06*

   Charm fragmentation and associated $J/\psi +Z/W^{\pm }$ production at the LHC

   S.P. Baranov🇷🇺 · A.V. Lipatov🇷🇺 · A.A. Prokhorov🇷🇺

   We consider the production of electroweak $Z$ or $W^{\pm }$ bosons associated with $J/\psi$ mesons at the LHC conditions. Our attention is focused on new partonic subprocesses which yet have never been considered in the literature, namely, the charmed or strange quark excitation subprocesses followed by the charmed quark fragmentation $c\to J/\psi +c$. Additionally we take into account the effects of multiple quark and gluon radiation in the initial and final states. We find that the contributions from the new mechanisms are important and significantly reduce the gap between the theoretical and experimental results on the $J/\psi +Z$ and $J/\psi +W^{\pm }$ production cross sections.

   hep-phPRD(2021)·3 citations
7. 07*

   Higher fully-charmed tetraquarks: Radial excitations and P-wave states

   Guang-Juan Wang🇯🇵 · Lu Meng🇩🇪 · Makoto Oka🇯🇵 · Shi-Lin Zhu🇨🇳

   We systematically calculate the mass spectrum of the higher excited fully-charmed tetraquark $cc\bar{c}\bar{c}$ states including the S-wave radial excitations and the P-wave states with a nonrelativistic quark model. The quark model is composed of a vector one-gluon-exchange (OGE) and a scalar linear confinement interaction with the parameters determined by the charmonium spectrum. In the calculation, we consider both the $3_c-{\bar{3}}_c$ and the $6_c-{\bar{6}}_c$ color representations. For the $cc\bar{c}\bar{c}$ state, the $6_c-{\bar{6}}_c$ component is located lower than the ${\bar{3}}_c-3_c$ one because of the stronger attractive interactions between the diquark and antidiquark. We focus on two excited modes and their properties for the P-wave tetraquarks. The mass splitting for the $\rho$-mode excitations with different color configurations is large. The low-lying $6_c-{\bar{6}}_c$ $\rho$-mode component helps to explain the small mass gap between the ground S-wave and the P-wave tetraquark states. The recently observed $X(6900)$ state may be the candidate of the first radially excited tetraquarks with $J^{PC}=0^{++}$ or $2^{++}$, or the $1^{+-}$ or $2^{-+}$ P-wave states based on the mass spectrum. Moreover, the lowest $T_c$ states with the exotic $J^{PC}$ quantum numbers $0^{--}$ and $1^{-+}$ may decay into the P-wave ${\eta }_{c}J/\psi$ and di-$J/\psi$ modes, respectively. The future experimental search of these $T_c$ states will enrich the hadronic spectrum.

   hep-phPRD(2021)·59 citations
8. 08*

   When does the Schwinger Preheating Occur?

   So Okano🇯🇵 · Tomohiro Fujita🇯🇵

   When the inflaton couples to photons and amplifies electric fields, charged particles produced via the Schwinger effect can dominate the universe after inflation, which is dubbed as the Schwinger preheating. Using the hydrodynamic approach for the Boltzmann equation, we numerically study two cases, the Starobinsky inflation model with the kinetic coupling and the anisotropic inflation model. The Schwinger preheating is not observed in the latter model but occurs for a sufficiently large inflaton-photon coupling in the first model. We analytically address its condition and derive a general attractor solution of the electric fields. The occurrence of the Schwinger preheating in the first model is determined by whether the electric fields enter the attractor solution during inflation or not.

   hep-phastro-ph.COgr-qcJCAP(2022)·1 citation
9. 09*

   The $P$-wave charmonium annihilation into two photons ${\chi }_{c0,c2}\to \gamma \gamma$ with high-order QCD corrections

   Hua Zhou🇨🇳 · Qing Yu🇨🇳 · Xu-Dong Huang🇨🇳 · Xu-Chang Zheng🇨🇳 · Xing-Gang Wu (Chongqing University)🇨🇳

   In this paper, we present a new analysis on the $P$-wave charmonium annihilation into two photons up to next-to-next-to-leading order (NNLO) QCD corrections by using the principle of maximum conformality (PMC). The conventional perturbative QCD prediction shows strong scale dependence and deviates largely from the BESIII measurements. After applying the PMC, we obtain a more precise scale-invariant pQCD prediction, which also agrees with the BESIII measurements within errors, i.e. $R={\Gamma }_{\gamma \gamma }({\chi }_{c2})/{\Gamma }_{\gamma \gamma }({\chi }_{c0})=0.246\pm 0.013$, where the error is for $\Delta {\alpha }_s(M_{\tau })=\pm 0.016$. By further considering the color-octet contributions, even the central value can be in agreement with the data. This shows the importance of a correct scale-setting approach. We also give a prediction for the ratio involving ${\chi }_{b0,b2}\to \gamma \gamma$, which could be tested in future Belle II experiment.

   hep-phEPJC(2021)·3 citations
10. 10*

    $W\gamma$ production at NNLO+PS accuracy in GENEVA

    Thomas Cridge🇬🇧 · Matthew A. Lim🇮🇹 · Riccardo Nagar🇮🇹

    We present an event generator for the process $pp\to \ell {\nu }_{\ell }\gamma$ at next-to-next-to-leading order (NNLO) in QCD and matched to the PYTHIA8 parton shower. The calculation makes use of the GENEVA framework, which combines a resummed calculation obtained via Soft-Collinear Effective Theory (SCET) with the fixed-order result. We validate the NNLO accuracy of our results by comparing predictions for inclusive quantities with an independent fixed-order calculation, and then present the resummed 0-jettiness spectrum at next-to-next-to-leading logarithmic (NNLL${}^{\prime }$) accuracy. Finally, we compare our predictions against data collected by the ATLAS experiment at the Large Hadron Collider during its 7 TeV run, finding good agreement.

    hep-phPLB(2022)·33 citations
11. 11*

    Density Induced Vacuum Instability

    Reuven Balkin🇮🇱 · Javi Serra🇩🇪 · Konstantin Springmann🇩🇪 · Stefan Stelzl🇩🇪 · Andreas Weiler🇩🇪

    We consider matter density effects in theories with a false ground state. Large and dense systems, such as stars, can destabilize a metastable minimum and allow for the formation of bubbles of the true minimum. We derive the conditions under which these bubbles form, as well as the conditions under which they either remain confined to the dense region or escape to infinity. The latter case leads to a phase transition in the universe at star formation. We explore the phenomenological consequences of such seeded phase transitions.

    hep-phastro-ph.COastro-ph.HESciPost Phys.(2023)·35 citations
12. 12*

    Hidden Dark Matter from Starobinsky Inflation

    Qiang Li🇯🇵 · Takeo Moroi🇯🇵 · Kazunori Nakayama🇯🇵 · Wen Yin🇯🇵

    The Starobinsky inflation model is one of the simplest inflation models that is consistent with the cosmic microwave background observations. In order to explain dark matter of the universe, we consider a minimal extension of the Starobinsky inflation model with introducing the dark sector which communicates with the visible sector only via the gravitational interaction. In Starobinsky inflation model, a sizable amount of dark-sector particle may be produced by the inflaton decay. Thus, a scalar, a fermion or a vector boson in the dark sector may become dark matter. We pay particular attention to the case with dark non-Abelian gauge interaction to make a dark glueball a dark matter candidate. In the minimal setup, we show that it is difficult to explain the observed dark matter abundance without conflicting observational constraints on the coldness and the self-interaction of dark matter. We propose scenarios in which the dark glueball, as well as other dark-sector particles, from the inflaton decay become viable dark matter candidates. We also discuss possibilities to test such scenarios.

    hep-phastro-ph.COgr-qcJHEP(2021)·17 citations
13. 13*

    Experimental constraints on the neutrino and gauge parameters of the super-weak U(1) extension of the standard model

    Timo J. Kärkkäinen🇭🇺 · Zoltán Trócsányi🇭🇺

    The super-weak force is a minimal, anomaly-free U(1) extension of the standard model (SM), designed to explain the origin of (i) neutrino masses and mixing matrix elements, (ii) dark matter, (iii) cosmic inflation, (iv) stabilization of the electroweak vacuum and (v) leptogenesis. We discuss the neutrino sector of this model in detail and study the allowed parameter space of the neutrino Yukawa matrices and mixing matrix elements. The model generates nonstandard neutrino interactions, whose allowed experimental limits are used to constrain the parameter space of the model. We provide benchmark points in the relevant parameter space that fall within the sensitivity region of the SHiP and MATHUSLA experiments.

    hep-phJ.Phys.G(2022)·14 citations
14. 14*

    Non-relativistic electron-ion bremsstrahlung: an approximate formula for all parameters

    Josef Pradler🇦🇹 · Lukas Semmelrock🇦🇹

    The evaluation of the electron-ion bremsstrahlung cross section exact to all orders in the Coulomb potential is computationally expensive due to the appearance of hypergeometric functions. Therefore tabulations are widely used. Here, we provide an approximate formula for the non-relativistic dipole process valid for all applicable relative velocities and photon energies. Its validity spans from the Born- to the classical regime and from soft-photon emission to the kinematic endpoint. The error remains below 3% (and widely below 1%) except at an isolated region of hard-photon emission at the quantum-to-classical crossover. We use the formula to obtain the thermally averaged emission spectrum and cooling function in a Maxwellian plasma and demonstrate that they are accurate to better than 2%.

    hep-phastro-ph.COApJ(2021)·5 citations
15. 15*

    The effect of kick velocities on the spatial distribution of millisecond pulsars and implications for the Galactic center excess

    Harrison Ploeg🇳🇿 · Chris Gordon🇳🇿

    Recently it has become apparent that the Galactic center excess (GCE) is spatially correlated with the stellar distribution in the Galactic bulge. This has given extra motivation for the unresolved population of millisecond pulsars (MSPs) explanation for the GCE. However, in the "recycling" channel the neutron star forms from a core collapse supernovae that undergoes a random "kick" due to the asymmetry of the explosion. This would imply a smoothing out of the spatial distribution of the MSPs. We use N-body simulations to model how the MSP spatial distribution changes. We estimate the probability distribution of natal kick velocities using the resolved gamma-ray MSP proper motions, where MSPs have random velocities relative to the circular motion with a scale parameter of 77+/-6 km/s. We find that, due to the natal kicks, there is an approximately 10% increase in each of the bulge MSP spatial distribution dimensions and also the bulge MSP distribution becomes less boxy but is still far from being spherical.

    ↳ astro-ph.HEastro-ph.GAastro-ph.SRhep-phJCAP(2021)·6 citations
16. 16*

    Constraints on dark photon dark matter using data from LIGO's and Virgo's third observing run

    The LIGO Scientific Collaboration · the Virgo Collaboration · the KAGRA Collaboration: R. Abbott · T. D. Abbott · F. Acernese · K. Ackley · C. Adams · N. Adhikari · R. X. Adhikari · V. B. Adya · C. Affeldt · D. Agarwal and 1617 other authors

    We present a search for dark photon dark matter that could couple to gravitational-wave interferometers using data from Advanced LIGO and Virgo's third observing run. To perform this analysis, we use two methods, one based on cross-correlation of the strain channels in the two nearly aligned LIGO detectors, and one that looks for excess power in the strain channels of the LIGO and Virgo detectors. The excess power method optimizes the Fourier Transform coherence time as a function of frequency, to account for the expected signal width due to Doppler modulations. We do not find any evidence of dark photon dark matter with a mass between $m_{\mathrm{A}}\sim 10^{-14}-10^{-11}$ eV/$c^2$, which corresponds to frequencies between 10-2000 Hz, and therefore provide upper limits on the square of the minimum coupling of dark photons to baryons, i.e. $U(1{)}_{\mathrm{B}}$ dark matter. For the cross-correlation method, the best median constraint on the squared coupling is $\sim 2.65\times 10^{-46}$ at $m_{\mathrm{A}}\sim 4.31\times 10^{-13}$ eV/$c^2$; for the other analysis, the best constraint is $\sim 2.4\times 10^{-47}$ at $m_{\mathrm{A}}\sim 5.7\times 10^{-13}$ eV/$c^2$. These limits improve upon those obtained in direct dark matter detection experiments by a factor of $\sim 100$ for $m_{\mathrm{A}}\sim [2-4]\times 10^{-13}$ eV/$c^2$, and are, in absolute terms, the most stringent constraint so far in a large mass range $m_A\sim$ $2\times 10^{-13}-8\times 10^{-12}$ eV/$c^2$.

    ↳ astro-ph.COgr-qchep-phPRD(2022)·134 citations
17. 17*

    Sensitivity of third-generation interferometers to extra polarizations in the Stochastic Gravitational Wave Background

    Loris Amalberti🇮🇹 · Nicola Bartolo🇮🇹 · Angelo Ricciardone🇮🇹

    When modified theories of gravity are considered, at most six gravitational wave polarization modes are allowed and classified in tensor modes, the only ones predicted by General Relativity (GR), along with additional vector and scalar modes. Therefore, gravitational waves represent a powerful tool to test alternative theories of gravitation. In this paper, we forecast the sensitivity of third-generation ground-based interferometers, Einstein Telescope and Cosmic Explorer, to non-GR polarization modes focusing on the stochastic gravitational wave background. We consider the latest technical specifications of the two independent detectors and the full network in order to estimate both the optimal signal-to-noise ratio and the detectable energy density limits relative to all polarization modes in the stochastic background for several locations on Earth and orientations of the two observatories. By considering optimal detector configurations, we find that in 5 years of observation the detection limit for tensor and extra polarization modes could reach $h_0^2{\Omega }_{GW}^{T,V,S}\approx 10^{-12}-10^{-11}$, depending on the network configuration and the stochastic background (i.e., if only one among vector and scalar modes exists or both are present). This means that the network sensitivity to different polarization modes can be approximately improved by a factor $10^3$ with respect to second-generation interferometers. We finally discuss the possibility of breaking the scalar modes degeneracy by considering both detectors angular responses to sufficiently high gravitational wave frequencies.

    ↳ astro-ph.COgr-qchep-phPRD(2022)·16 citations
18. 18*

    The Continuum and Leading Twist Limits of Parton Distribution Functions in Lattice QCD

    Joseph Karpie🇺🇸 · Kostas Orginos🇺🇸 · Anatoly Radyushkin🇺🇸 · Savvas Zafeiropoulos🇫🇷

    In this study, we present continuum limit results for the unpolarized parton distribution function of the nucleon computed in lattice QCD. This study is the first continuum limit using the pseudo-PDF approach with Short Distance Factorization for factorizing lattice QCD calculable matrix elements. Our findings are also compared with the pertinent phenomenological determinations. Inter alia, we are employing the summation Generalized Eigenvalue Problem (sGEVP) technique in order to optimize our control over the excited state contamination which can be one of the most serious systematic errors in this type of calculations. A crucial novel ingredient of our analysis is the parameterization of systematic errors using Jacobi polynomials to characterize and remove both lattice spacing and higher twist contaminations, as well as the leading twist distribution. This method can be expanded in further studies to remove all other systematic errors.

    ↳ hep-lathep-phJHEP(2021)·69 citations
19. 19*

    Prospects for $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }$ at FCC-ee

    Yasmine Amhis🇫🇷 · Marie Hartmann🇫🇷 · Clément Helsens🇨🇭 · Donal Hill🇨🇭 · Olcyr Sumensari🇫🇷

    This paper presents the prospects for a precise measurement of the branching fraction of the leptonic $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }$ decay at the Future Circular Collider (FCC-ee) running at the $Z$-pole. A detailed description of the simulation and analysis framework is provided. To select signal candidates, two Boosted Decision Tree algorithms are employed and optimised. The first stage suppresses inclusive $b\bar{b}$, $c\bar{c}$, and $q\bar{q}$ backgrounds using event-based topological information. A second stage utilises the properties of the hadronic ${\tau }^{+}\to {\pi }^{+}{\pi }^{+}{\pi }^{-}{\bar{\nu }}_{\tau }$ decay to further suppress these backgrounds, and is also found to achieve high rejection for the $B^{+}\to {\tau }^{+}{\nu }_{\tau }$ background. The number of $B_c^{+}\to {\tau }^{+}{\nu }_{\tau }$ candidates is estimated for various Tera-$Z$ scenarios, and the potential precision of signal yield and branching fraction measurements evaluated. The phenomenological impact of such measurements on various New Physics scenarios is also explored.

    ↳ hep-exhep-phJHEP(2021)·44 citations
20. 20*

    Gravitational radiation from binary systems in massive graviton theories

    Tanmay Kumar Poddar🇮🇳 · Subhendra Mohanty🇮🇳 · Soumya Jana🇮🇳

    Theories with massive gravitons have peculiarity called the van Dam-Veltman-Zakharov discontinuity in that the massive theory propagator does not go to the massless graviton propagator in the zero graviton mass limit. This results in large deviation in Newtons law for massive graviton theories even when the graviton mass vanishes. We test the vDVZ in massive graviton theories for single graviton vertex process namely the gravitational radiation from a classical source. We calculate the gravitational radiation from compact binaries using the perturbative Feynman diagram method. We perform this calculation for Einstein's gravity with massless gravitons and verify that the Feynman diagram calculation reproduces the quadrupole formula. Using the same procedure we calculate the gravitational radiation for three massive graviton theories: (1) the Fierz-Pauli theory (2) the modified Fierz-Pauli theory without the vDVZ discontinuity and (3) the Dvali-Gabadadze-Porrati theory with a momentum dependent graviton mass. We put limits on the graviton mass in each of these theories from observations of binary pulsar timings.

    ↳ gr-qchep-phhep-thJCAP(2022)·28 citations
21. 21*

    Nested sampling for frequentist computation: fast estimation of small $p$-values

    Andrew Fowlie🇨🇳 · Sebastian Hoof🇩🇪 · Will Handley🇬🇧

    We propose a novel method for computing $p$-values based on nested sampling (NS) applied to the sampling space rather than the parameter space of the problem, in contrast to its usage in Bayesian computation. The computational cost of NS scales as ${\log }^{2}1/p$, which compares favorably to the $1/p$ scaling for Monte Carlo (MC) simulations. For significances greater than about $4\sigma$ in both a toy problem and a simplified resonance search, we show that NS requires orders of magnitude fewer simulations than ordinary MC estimates. This is particularly relevant for high-energy physics, which adopts a $5\sigma$ gold standard for discovery. We conclude with remarks on new connections between Bayesian and frequentist computation and possibilities for tuning NS implementations for still better performance in this setting.

    ↳ physics.data-anastro-ph.IMhep-exhep-ph+1PRL(2022)·7 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.