Fri·Feb 4, 2022Friday·February 4, 2022

1. 01*

   Detecting Beyond the Standard Model Interactions of Solar Neutrinos in Low-Threshold Dark Matter Detectors

   Thomas Schwemberger🇺🇸 · Tien-Tien Yu🇺🇸

   As low-threshold dark matter detectors advance in development, they will become sensitive to recoils from solar neutrinos which opens up the possibility to explore neutrino properties. We predict the enhancement of the event rate of solar neutrino scattering from Beyond the Standard Model interactions in low-threshold DM detectors, with a focus on silicon, germanium, gallium arsenide, xenon, and argon-based detectors. We consider a set of general neutrino interactions, which fall into five categories: the neutrino magnetic moment as well as interactions mediated by four types of mediators (scalar, pseudoscalar, vector, and axial vector), and consider coupling these mediators to either quarks or electrons. Using these predictions, we place constraints on the mass and couplings of each mediator and the neutrino magnetic moment from current low-threshold detectors like SENSEI, Edelweiss, and SuperCDMS, as well as projections relevant for future experiments such as DAMIC-M, Oscura, Darwin, and ARGO. We find that such low-threshold detectors can improve current constraints by up to two orders of magnitude for vector mediators and one order of magnitude for scalar mediators.

   hep-phPRD(2022)·41 citations
2. 02*

   Challenging exclusive top quark pair production at low and high luminosity LHC

   Daniel E. Martins🇧🇷 · Marek Tasevsky🇨🇿 · Victor P. Goncalves🇧🇷

   The elastic production of top quark pairs in $pp$ collisions at low and high luminosity regimes is investigated in detail. We extend the study performed in Phys. Rev. D102, 074014 (2020) which has demonstrated that the sum of two semi-exclusive $t\bar{t}$ production modes, namely in photon-Pomeron and Pomeron-Pomeron interactions, can be experimentally measured when the $t\bar{t}$ system decays semi-leptonically, $t\bar{t}\to jjbl{\nu }_l\bar{b}$, both forward protons are tagged and a low amount of pile-up is present. In this study we focus on separating individual channels and a special attention is paid to the situation at high-luminosity LHC environment. We observe that the separation of the pomeron-pomeron and photon-photon events is a challenging task, especially at high amounts of pile-up even with an optimistic 10~ps resolution of timing detectors. In contrast, the photon-Pomeron signal is relatively well separable from all backgrounds at low levels of pile-up, allowing us to discover the elastic $t\bar{t}$ production and probe, for the first time, the production of a top quark pair in the photon-Pomeron interactions. The diffractive photoproduction of such a complex system as the $t\bar{t}$ pair hence can be used not only to study diffractive properties of the scattering amplitude but also to search for new physics beyond the Standard Model, and consequently to be a solid part of the physics programme of forward proton detectors at LHC.

   hep-phhep-exPRD(2022)·23 citations
3. 03*

   Fixed Points in Supersymmetric Extensions of the Standard Model

   Gudrun Hiller🇩🇪 · Daniel F. Litim🇬🇧 · Kevin Moch🇩🇪

   We search for weakly interacting fixed points in extensions of the minimally supersymmetric standard model (MSSM). Necessary conditions lead to three distinct classes of anomaly-free extensions involving either new quark singlets, new quark doublets, or a fourth generation. While interacting fixed points arise prolifically in asymptotically free theories, their existence is significantly constrained as soon as some of the non-abelian gauge sectors are infrared free. Performing a scan over $\sim 200$k different MSSM extensions using matter field multiplicities and the number of superpotential couplings as free parameters, we find mostly infrared conformal fixed points, and a small subset with ultraviolet ones. All settings predict low-scale supersymmetry-breaking and a violation of $R$-parity. Despite of residual interactions, the running of couplings out of asymptotically safe fixed points is logarithmic as in asymptotic freedom. Some fixed points can be matched to the Standard Model though the matching scale comes out too low. Prospects for higher matching scales and asymptotic safety beyond the MSSM are indicated.

   hep-phhep-thEPJC(2022)·8 citations
4. 04*

   Anomaly flow by an Aharonov-Bohm phase

   Shuichiro Funatsu🇯🇵 · Hisaki Hatanaka🇯🇵 · Yutaka Hosotani🇯🇵 · Yuta Orikasa🇨🇿 · Naoki Yamatsu🇯🇵

   In gauge-Higgs unification (GHU), gauge symmetry is dynamically broken by an Aharonov-Bohm (AB) phase, ${\theta }_H$, in the fifth dimension. We analyze $SU(2)$ GHU with an $SU(2)$ doublet fermion in flat $M^4\times (S^1/Z_2)$ spacetime and in the Randall-Sundrum (RS) warped space. With orbifold boundary conditions the $U(1)$ part of gauge symmetry remains unbroken at ${\theta }_H=0$ and $\pi$. The fermion multiplet has chiral zero modes at ${\theta }_H=0$, which become massive at ${\theta }_H=\pi$. In other words chiral fermions are transformed to vectorlike fermions by the AB phase ${\theta }_H$. Chiral anomaly at ${\theta }_H=0$ continuously varies as ${\theta }_H$ and vanishes at ${\theta }_H=\pi$. We demonstrate this intriguing phenomenon in the RS space in which there occurs no level crossing in the mass spectrum and everything varies smoothly. The flat spacetime limit is singular as the AdS curvature of the RS space diminishes, and reproduces the result in the flat spacetime. Anomalies appear for various combinations of Kaluza-Klein excitation modes of gauge fields as well. Although the magnitude of anomalies depends on ${\theta }_H$ and the warp factor of the RS space, it does not depend on the bulk mass parameter of the fermion field controlling its mass and wave function at general ${\theta }_H$.

   hep-phhep-thPTEP(2022)·6 citations
5. 05*

   Proton Decay in SUSY GUTs

   Junji Hisano🇯🇵

   I review proton decay in the SUSY SU(5) GUTs assuming the mini-split SUSY breaking model. In the mini-split SUSY breaking model, the squark and slepton masses are O(10^{(2-3)}) TeV while the gaugino masses are O(1) TeV. As the result, even the minimal SUSY SU(5) GUT is still viable in the model. We present the motivation of the mini-split SUSY model and discuss the future prospects of proton decay searches in the SUSY SU(5) GUTs.

   hep-phhep-exPTEP(2022)·18 citations
6. 06*

   Determination of $|V_{cb}|$ using N${}^3$LO perturbative corrections to $\Gamma (B\to X_c\ell \nu )$ and 1S masses

   Yuuki Hayashi🇯🇵 · Yukinari Sumino🇯🇵 · Hiromasa Takaura🇯🇵

   We determine $|V_{cb}|$ using the third-order perturbative series for the inclusive semileptonic $B$ decay width and for the masses of the bottomonium 1S states. We use the masses of ${\eta }_b(1S)$ and ${\rm Y}(1S)$ as short-distance masses and point out that there is a sizable difference of $|V_{cb}|$ between the two 1S mass schemes. This is the dominant error of our determination and stems from insufficiency to describe theoretically the observed mass splitting of the bottomonium 1S states. We also study the significance of the $\mathcal{O}({\Lambda }_{\overline{\mathrm{MS}}}^2)$ non-perturbative effects in HQET with respect to the current perturbative accuracy. Our result $|V_{cb}|=0.0425(11)$ is consistent with the PDG value determined from the inclusive decays and has a slightly larger error.

   hep-phPLB(2022)·8 citations
7. 07*

   Two-component scalar and fermionic dark matter candidates in a generic U$(1{)}_X$ model

   Arindam Das🇯🇵 · Shivam Gola🇮🇳 · Sanjoy Mandal🇰🇷 · Nita Sinha🇮🇳

   We consider a $U(1{)}_X\otimes {\mathbb{Z}}_2\otimes {\mathbb{Z}}_2^{\prime }$ extension of the Standard Model (SM), where the $U(1{)}_X$ charge of an SM field is given by a linear combination of its hypercharge and B$-$L number. Apart from the SM particle content, the model contains three right-handed neutrinos (RHNs) $N_R^i$ and two scalars $\Phi$, $\chi$, all singlets under the SM gauge group but charged under $U(1{)}_X$ gauge group. Two of these additional fields, fermion $N_R^3$ is odd under ${\mathbb{Z}}_2$ and scalar $\chi$ is odd under ${\mathbb{Z}}_2^{\prime }$ symmetry. Thus both $\chi$ and $N_R^3$ contribute to the observed dark matter relic density, leading to two-component dark matter candidates. We study in detail its dark matter properties such as relic density and direct detection taking into account the constraints coming from collider studies. We find that in our model, there can be possible annihilation of one Dark Matter (DM) into the other, which may potentially alter the relic density in a significant way.

   hep-phPLB(2022)·33 citations
8. 08*

   Implications of Quantum Gravity for Dark Matter Searches with Atom Interferometers

   Xavier Calmet🇬🇧 · Nathaniel Sherrill🇬🇧

   In this brief paper, we show that atom interferometer experiments such as MAGIS, AION or AEDGE have the potential to not only probe very light dark matter models, but they will also probe quantum gravity. We show that the linear coupling of a singlet scalar dark matter particle to electrons or photons is already ruled out by our current understanding of quantum gravity coupled to data from torsion pendulum experiments. On the other hand, the quadratic coupling of scalar dark matter to electrons and photons has a large viable parameter space which will be probed by these atom interferometers. Implications for searches of quantum gravity are discussed.

   hep-phphysics.atom-phUniverse(2022)·5 citations
9. 09*

   Spectroscopic parameters and electromagnetic form factor of kaon in vacuum and a dense medium

   N. Er🇹🇷 · K. Azizi🇮🇷

   The spectroscopic parameters as well as electromagnetic form factor of the strange particle kaon are investigated in vacuum and a medium with finite density. The obtained vacuum mass and decay constant, which are consistent with the existing experimental results, are used to extract the $Q^2$ dependence of the kaon electromagnetic form factor in the interval $Q^2\in [0,10]$ GeV${}^2$ in vacuum. The obtained results at lower and intermediate values of $Q^2$ are consistent with the existing experimental data within the presented uncertainties. The $Q^2$ behavior of the electromagnetic form factor of kaon in vacuum and in the interval $Q^2\in [0,6]$ GeV${}^2$ is in a nice agreement with the existing predictions of the Lattice QCD and the solution of the Bethe-Salpeter equation for the model of Nambu and Jona-Lasinio (NJL) with proper-time regularization, as well. The obtained vacuum radius for kaon is also in a nice agreement with the world's average experimental result. We extend the analyses to a medium with higher densities and obtain the behavior of the mass, decay constant, electromagnetic form factor and radius with respect to density. The obtained results for some of the parameters are compared with the existing predictions of other models and approaches. The results obtained in the present study can be useful for future experimental and theoretical studies both in vacuum and a dense medium.

   hep-phhep-exhep-latEPJC(2022)·13 citations
10. 10*

    Projected Sensivity to Dimension-6 Triple Gauge Couplings at the FCC-hh

    V. Ari🇹🇷 · V. Cetinkaya🇹🇷 · M. Köksal🇹🇷 · O. Cakir🇹🇷

    In this study, we investigate the process $pp\to W^{\pm }\gamma$ for the physics potential of the FCC-hh with $\sqrt{s}=100$ TeV to examine the anomalous $WW\gamma$ couplings defined by three CP-conserving and two CP-violating effective operators of dimension-6. The analysis containing the realistic detector effects is carried out in the mode where $W^{\pm }$ bosons in the final state decay into the leptonic channel. The best sensitivities obtained from the process $pp\to W^{\pm }\gamma$ on the anomalous couplings $C_{WWW}/{\Lambda }^2$ and $C_{W,B}/{\Lambda }^2$ determined by CP-conserving effective Lagrangians are $[-0.01;0.01]$ TeV${}^{-2}$ and $[-0.88;0.88]$ TeV${}^{-2}$, while $C_{\tilde{W}WW}/{\Lambda }^2$ and $C_{\tilde{W}}/{\Lambda }^2$ couplings defined by CP-violating effective Lagrangian are obtained as $[-0.03;0.03]$ TeV${}^{-2}$ and $[-0.47;0.47]$ TeV${}^{-2}$ at the FCC-hh with $\sqrt{s}=100$ TeV, $L_{int}=30$ ab${}^{-1}$. However, if the systematic uncertainty is included, we obtain reduced sensitivities on the anomalous $WW\gamma$ coupling . The results are compared for assumed systematics of $5\%$ and $10\%$.

    hep-phNPB(2023)·1 citation
11. 11*

    Excited doubly heavy baryon production via $W^{+}$ boson decays

    Peng-Hui Zhang🇨🇳 · Lei Guo🇨🇳 · Xu-Chang Zheng🇨🇳 · Qi-Wei Ke🇨🇳

    In this paper, decay widths of the doubly heavy baryons (${\Xi }_{cc}\text{and}{\Xi }_{bc}$) production are theoritically calculated in the whole phase space through $W^{+}\to {\Xi }_{cc}+\bar{c}+\bar{s}$ and $W^{+}\to {\Xi }_{bc}+\bar{b}+\bar{s}$, within the framework of nonrelativistic QCD (NRQCD). Differential widths $d\Gamma /d{s}_{12}$, $d\Gamma /d{s}_{23}$, $d\Gamma /dcos{\theta }_{12}$, and $d\Gamma /dcos{\theta }_{13}$ are also given. In addition to the ordinary S wave contributions for the baryons, we specifically calculate P wave contributions as a comparison, namely the high excited states of the intermediate diquark, including ${[}^1{P}_1]$ and ${[}^3{P}_J]$ (with $J=0,1,2$) in both color anti-triplet state $\overline{3}$ and color sextuplet state $6$. It shows that the contribution from P wave is about one order lower than S wave. According to the results, we can expect plentiful events produced at the LHC, i.e., $3.69\times 10^5$ ${\Xi }_{cc}$ events and $4.91\times 10^4$ ${\Xi }_{bc}$ events per year.

    hep-phPRD(2022)·19 citations
12. 12*

    Cosmic Perturbations from a Rotating Field

    Raymond T. Co🇺🇸 · Keisuke Harigaya🇨🇭 · Aaron Pierce🇺🇸

    Complex scalar fields charged under approximate $U(1)$ symmetries appear in well-motivated extensions of the Standard Model. One example is the field that contains the QCD axion field associated with the Peccei-Quinn symmetry; others include flat directions in supersymmetric theories with baryon, lepton, or flavor charges. These fields may take on large values and rotate in field space in the early universe. The relevant approximate $U(1)$ symmetry ensures that the angular direction of the complex field is light during inflation and that the rotation is thermodynamically stable and is long-lived. These properties allow rotating complex scalar fields to naturally serve as curvatons and explain the observed perturbations of the universe. The scenario imprints non-Gaussianity in the curvature perturbations, likely at a level detectable in future large scale structure observations. The rotation can also explain the baryon asymmetry of the universe without producing excessive isocurvature perturbations.

    hep-phastro-ph.COJCAP(2022)·18 citations
13. 13*

    Unravelling the left-right mixing using $0\nu \beta \beta$ decay and collider probes

    Gang Li🇺🇸 · Michael J. Ramsey-Musolf🇨🇳 · Juan Carlos Vasquez🇺🇸

    In the context of the minimal left-right symmetric model, we study the interplay between current and future neutrinoless double beta ($0\nu \beta \beta$) decay experiments, long-lived particle searches at the LHC main detectors ATLAS/CMS, and the proposed far detector MATHUSLA. The heavy Majorana neutrino can be produced in association with an electron from the decay of $W$ boson for a non-zero left-right mixing and subsequently decays into another electron with the same charge and jets. Owing to the suppression of large right-handed charged gauge boson $W_R$ mass, the heavy neutrinos could be long-lived. We show that long-lived particle (LLP) searches for heavy Majorana neutrinos in the same-sign dilepton channel at the LHC can be used to extend $W_R$ boson mass reach relative to the reach of the Keung-Senjanovic (KS) process. Finally, we show that sensitivities of LLP searches at the high-luminosity LHC with main detectors ATLAS/CMS are competitive with those of future $0\nu \beta \beta$ decay searches.

    hep-phhep-exPRD(2022)·12 citations
14. 14*

    Strongly lensed type Ia supernovae as a precise late-universe probe of measuring the Hubble constant and cosmic curvature

    Jing-Zhao Qi🇨🇳 · Yu Cui🇨🇳 · Wei-Hong Hu🇨🇳 · Jing-Fei Zhang🇨🇳 · Jing-Lei Cui🇨🇳 · Xin Zhang🇨🇳

    Strongly lensed type Ia supernovae (SNe Ia) are expected to have some advantages in measuring time delays of multiple images, and so they have a great potential to be developed into a powerful late-universe cosmological probe. In this paper, we simulate a sample of lensed SNe Ia with time-delay measurements in the era of the Legacy Survey of Space and Time (LSST). Based on the distance sum rule, we use lensed SNe Ia to implement model-independent constraints on the Hubble constant $H_0$ and cosmic curvature parameter ${\Omega }_K$ in the late universe. We find that if 20 lensed SNe Ia could be observed, the constraint on $H_0$ is better than the measurement by the SH0ES collaboration. When the event number of lensed SNe Ia increases to 100, the constraint precision of $H_0$ is comparable with the result from Planck 2018 data. Considering 200 lensed SNe Ia events as the optimistic estimation, we obtain $\Delta H_0=0.33$ $\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$ and $\Delta {\Omega }_K=0.053$. In addition, we also simulate lensed quasars in different scenarios to make a comparison and we find that they are still a useful cosmological probe even though the constraint precision from them is much less than that obtained from lensed SNe Ia. In the era of LSST, the measurements of time delay from both lensed SNe Ia and lensed quasars are expected to yield the results of $\Delta H_0=0.26\mathrm{km}{\mathrm{s}}^{-1}\mathrm{Mp}{\mathrm{c}}^{-1}$ and $\Delta {\Omega }_K=0.044$.

    ↳ astro-ph.COgr-qchep-phPRD(2022)·24 citations
15. 15*

    Lattice QCD calculation of the two-photon exchange contribution to the muonic-hydrogen Lamb shift

    Yang Fu🇨🇳 · Xu Feng🇨🇳 · Lu-Chang Jin🇺🇸 · Chen-Fei Lu🇨🇳

    We develop a method for lattice QCD calculation of the two-photon exchange contribution to the muonic-hydrogen Lamb shift. To demonstrate its feasibility, we present the first lattice calculation with a gauge ensemble at $m_{\pi }=142$ MeV. By adopting the infinite-volume reconstruction method along with an optimized subtraction scheme, we obtain $\Delta E_{\text{TPE}}=-28.9(4.9)\mu \text{eV}+93.72\mu \text{eV}/{\text{fm}}^2\cdot ⟨r_p^2⟩$, or $\Delta E_{\text{TPE}}=37.4(4.9)\mu$eV, which is consistent with the previous theoretical results in a range of 20-50 $\mu$eV.

    ↳ hep-lathep-phnucl-thPRL(2022)·25 citations
16. 16*

    Entropic force and real-time dynamics of holographic quarkonium in a magnetic field

    Siddhi Swarupa Jena🇮🇳 · Bhaskar Shukla🇮🇳 · David Dudal🇧🇪 · Subhash Mahapatra🇮🇳

    We continue the study of a recently constructed holographic QCD model supplemented with magnetic field. We consider the holographic dual of a quark, anti-quark pair and investigate its entropy beyond the deconfinement phase transition in terms of interquark distance, temperature and magnetic field. We obtain a clear magnetic field dependence in the strongly decreasing entropy near deconfinement and in the entropy variation for growing interquark separation. We uncover various supporting evidences for inverse magnetic catalysis. The emergent entropic force is found to become stronger with magnetic field, promoting the quarkonium dissociation. We also probe the dynamical dissociation of the quarkonium state, finding a faster dissociation with magnetic field. At least the static predictions should become amenable to a qualitative comparison with future lattice data.

    ↳ hep-thhep-exhep-lathep-phPRD(2022)·28 citations
17. 17*

    Formulating bulk viscosity for neutron star simulations

    T. Celora🇬🇧 · I. Hawke🇬🇧 · P. C. Hammond🇬🇧 · N. Andersson🇬🇧 · G. L. Comer🇺🇸

    In order to extract the precise physical information encoded in the gravitational and electromagnetic signals from powerful neutron-star merger events, we need to include as much of the relevant physics as possible in our numerical simulations. This presents a severe challenge, given that many of the involved parameters are poorly constrained. In this paper we focus on the role of nuclear reactions. Combining a theoretical discussion with an analysis connecting to state-of-the-art simulations, we outline multiple arguments that lead to a reactive system being described in terms of a bulk viscosity. The results demonstrate that in order to properly account for nuclear reactions, future simulations must be able to handle different regimes where rather different assumptions/approximations are appropriate. We also touch upon the link to models based on the large-eddy-strategy required to capture turbulence.

    ↳ astro-ph.HEgr-qchep-phnucl-thPRD(2022)·41 citations
18. 18*

    NCQ scaling of $f_0(980)$ elliptic flow in 200 GeV Au+Au collisions by STAR and its constituent quark content

    Jie Zhao (for the STAR collaboration)🇺🇸

    Searching for exotic state particles and studying their properties have furthered our understanding of quantum chromodynamics (QCD). The $f_0$(980) resonance is an exotic state with relatively high production rate in relativistic heavy-ion collisions, decaying primarily into $\pi \pi$. Currently, the structure and quark content of the $f_0$(980) are unknown with several predictions from theory being a $q\overline{q}$ state, a $qq\overline{q}\overline{q}$ state, a $K\overline{K}$ molecule state, or a gluonium state. We report the first $f_0$(980) elliptic flow ($v_2$) measurement from 200 GeV Au+Au collisions at STAR. The transverse momentum dependence of $v_2$ is examined and compared to those of other hadrons (baryons and mesons). The empirical number of constituent quark (NCQ) scaling is used to investigate the constituent quark content of $f_0$(980), which may potentially address an important question in QCD.

    ↳ nucl-exhep-exhep-phnucl-thEPJ Web Conf.(2022)·1 citation
19. 19*

    Benchmarking intra-nuclear cascade models for neutrino scattering with relativistic optical potentials

    Alexis Nikolakopoulos🇺🇸 · Raúl González-Jiménez🇮🇹 · Natalie Jachowicz🇧🇪 · Kajetan Niewczas🇵🇱 · Federico Sánchez🇨🇭 · José Manuel Udías🇮🇹

    The description of final-state interactions (FSI) in the large phase space probed in neutrino experiments poses a great challenge. In neutrino experiments, which operate under semi-inclusive conditions, cascade models are commonly used for this task, while under exclusive conditions FSI can be treated with relativistic optical potentials (ROP). We formulate conditions under which the ROP approach and cascade model can be directly compared. We feed the NEUT cascade with events from a relativistic distorted-wave impulse approximation calculation that uses the real part of an optical potential. Cuts on the missing energy of the resulting events are applied to define a set of events that can be directly compared to RDWIA calculations with the full optical potential. The NEUT cascade and ROP agree for proton kinetic energies $T_p>150$ MeV for carbon, oxygen and calcium nuclei when a realistic nuclear density is used to introduce events in the cascade. For $T_p<100$ MeV the ROP and NEUT cross sections differ in shape and differences in magnitude are larger than 50 \%. Single transverse variables allow to distinguish different approaches to FSI, but due to a large non-QE contribution the comparison to T2K data does not give an unambiguous view of FSI. We discuss electron scattering and argue that with a cut in missing energy FSI can be studied with minimal confounding factors in e.g. $e4\nu$. The agreement of the ROP and NEUT for T2K conditions lends confidence to these models as a tool in oscillation analyses for sufficiently large nucleon kinetic energies. These results urge for caution when a cascade model is applied for small nucleon energies. The assessment of model assumptions relevant to this region are strongly encouraged. This paper provides novel constraints on cascade models from proton-nucleus scattering that can be easily applied to other neutrino event generators.

    ↳ nucl-thhep-phPRC(2022)·40 citations
20. 20*

    Toward the discovery of matter creation with neutrinoless double-beta decay

    Matteo Agostini🇬🇧 · Giovanni Benato🇮🇹 · Jason A. Detwiler🇺🇸 · Javier Menéndez🇪🇸 · Francesco Vissani🇮🇹

    The discovery of neutrinoless double-beta decay could soon be within reach. This hypothetical ultra-rare nuclear decay offers a privileged portal to physics beyond the Standard Model of particle physics. Its observation would constitute the discovery of a matter-creating process, corroborating leading theories of why the universe contains more matter than antimatter, and how forces unify at high energy scales. It would also prove that neutrinos and anti-neutrinos are not two distinct particles, but can transform into each other, with their mass described by a unique mechanism conceived by Majorana. The recognition that neutrinos are not massless necessitates an explanation and has boosted interest in neutrinoless double-beta decay. The field stands now at a turning point. A new round of experiments is currently being prepared for the next decade to cover an important region of parameter space. In parallel, advances in nuclear theory are laying the groundwork to connect the nuclear decay with the underlying new physics. Meanwhile, the particle theory landscape continues to find new motivations for neutrinos to be their own antiparticle. This review brings together the experimental, nuclear theory, and particle theory aspects connected to neutrinoless double-beta decay, to explore the path toward - and beyond - its discovery.

    ↳ hep-exhep-phhep-thnucl-ex+1RMP(2023)·433 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.