First observation of the decay Bs0 K-μ+νμ and a measurement of |Vub|/|Vcb|The first observation of the suppressed semileptonic Bs0 K-μ+νμ decay is reported. Using a data sample recorded in pp collisions in 2012 with the LHCb detector, corresponding to an…LHCb collaboration, R. Aaij, C. Abellán Beteta et al.·Dec 9, 2020SaveLearn
Search for singly and pair-produced leptoquarks coupling to third-generation fermions in proton-proton collisions at s = 13 TeVA search for leptoquarks produced singly and in pairs in proton-proton collisions is presented. We consider the leptoquark (LQ) to be a scalar particle of charge -1/3e coupling to a top quark plus…CMS Collaboration·Dec 8, 2020SaveLearn
Search for new physics in top quark production with additional leptons in proton-proton collisions at s = 13 TeV using effective field theoryEvents containing one or more top quarks produced with additional prompt leptons are used to search for new physics within the framework of an effective field theory (EFT). The data correspond to an…CMS Collaboration·Dec 8, 2020SaveLearn
Observation of η→π+π-μ+μ-Using (1310.6 7.0) × 106~J/ψ events acquired with the BESIII detector at the BEPCII storage rings, the decay η→π+π-μ+μ- is observed for the first time with a…BESIII Collaboration, M. Ablikim, M. N. Achasov et al.·Dec 8, 2020SaveLearn
Observation of di-structures in e+e-→J/ψ X at center-of-mass energies around 3.773 GeVWe report a measurement of the observed cross sections of the inclusive J/ψ production in e+e-→ J/ψ X based on 3.21 fb-1 of data accumulated at energies from 3.645 to…M. Ablikim, M. N. Achasov, P. Adlarson et al.·Dec 8, 2020SaveLearn
Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at s = 13 TeVMeasurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The…CMS Collaboration·Dec 7, 2020SaveLearn
Comparison of pp and p p differential elastic cross sections and observation of the exchange of a colorless C-odd gluonic compoundWe describe an analysis comparing the pp elastic cross section as measured by the D0 Collaboration at a center-of-mass energy of 1.96 TeV to that in pp collisions as measured by the TOTEM…V. M. Abazov, B. Abbott, B. S. Acharya et al.·Dec 7, 2020SaveLearn
Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IVDue to a very low production rate of electron anti-neutrinos (νe) via nuclear fusion in the Sun, a flux of solar νe is unexpected. An appearance of νe in solar neutrino flux…Kamiokande Collaboration, K. Abe, C. Bronner et al.·Dec 7, 2020SaveLearn
Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in pp collisions at s= 13 TeV with the ATLAS detectorA search for new phenomena with top quark pairs in final states with one isolated electron or muon, multiple jets, and large missing transverse momentum is performed. Signal regions are designed to…ATLAS Collaboration·Dec 7, 2020SaveLearn
Search for the lepton number violating decay Σ- p e- e- and the rare inclusive decay Σ- Σ+ XUsing a data sample of (1310.6 7.0) × 106 J/ψ events taken with the BESIII detector at the center-of-mass energy of 3.097 GeV, we search for the first time for the lepton number…BESIII Collaboration, M. Ablikim, M. N. Achasov et al.·Dec 7, 2020SaveLearn
Zero-Permutation Jet-Parton Assignment using a Self-Attention NetworkIn high-energy particle physics events, it can be advantageous to find the jets associated with the decays of intermediate states, for example, the three jets produced by the hadronic decay of the…Jason Sang Hun Lee, Inkyu Park, Ian James Watson et al.·Dec 7, 2020SaveLearn
A novel method to test particle ordering and final state alignment in helicity formalismIn this article, the importance is demonstrated of a proper choice of reference particles for decay angle definitions, when constructing partial-wave amplitude of multi-body decays using helicity…Mengzhen Wang, Yi Jiang, Yinrui Liu et al.·Dec 7, 2020SaveLearn
On the Direct Detection of Dark Matter in the StratosphereWe investigate the prospects for direct detection of Dark Matter (DM) particles, such as dark photons, incident on the upper atmosphere. A recent work relates the burst-like temperature excursions in…G. Cantatore, H. Fischer, W. Funk et al.·Dec 6, 2020SaveLearn
Comparison of differential elastic cross sections in pp and pp collisions as evidence of the existence of the colourless C-odd three-gluon stateWe analyze the differences between the pp and pp differentia l elastic cross section measurements by the D0 and TOTEM Collaborations at the Tevatron, Fermilab, and the LHC, CERN that lead…C. Royon·Dec 6, 2020SaveLearn
Production and Decay of Charmed Mesons in the Upsilon Energy RegionWe study the properties of charmed, nonstrange, D mesons produced in continuum e+e- annihilations. The e+e- collisions were generated in the energy region of the $ …David R. Perticone·Dec 5, 2020SaveLearn
Search for Coherent Elastic Scattering of Solar 8B Neutrinos in the XENON1T Dark Matter ExperimentWe report on a search for nuclear recoil signals from solar 8B neutrinos elastically scattering off xenon nuclei in XENON1T data, lowering the energy threshold from 2.6 keV to 1.6 keV. We develop…E. Aprile, J. Aalbers, F. Agostini et al.·Dec 4, 2020SaveLearn
Search for long-lived particles decaying to e μ νLong-lived particles decaying to e μ ν, with masses between 7 and 50 GeV/c2 and lifetimes between 2 and 50 ps, are searched for by looking at displaced vertices containing electrons…LHCb collaboration, R. Aaij, C. Abellán Beteta et al.·Dec 4, 2020SaveLearn
Search for the reaction e+e- → π+π- χcJ and a charmonium-like structure decaying to χcJπ between 4.18 and 4.60 GeVWe search for the process e+e-→ π+π- χcJ (J=0,1,2) and for a charged charmonium-like state in the π χcJ subsystem. The search uses data sets collected with the…BESIII Collaboration, M. Ablikim, M. N. Achasov et al.·Dec 4, 2020SaveLearn
Search for the dark photon in B0 A A, A e+ e-, μ+ μ-, and π+ π- decays at BelleWe present a search for the dark photon A in the B0 A A decays, where A subsequently decays to e+ e-, μ+ μ-, and π+ π-. The search is…S. -H. Park, Y. -J. Kwon, I. Adachi et al.·Dec 4, 2020SaveLearn
Fast simulation of a forward detector at 50 and 100 TeV proton-proton collidersWe evaluate the performance of an LHCb-like detector using a fast simulation of proton-proton collisions at center-of-mass energies of 50 and 100 TeV. The study shows that detector acceptances and…Veronika Chobanova, Diego Martínez Santos, Claire Prouve et al.·Dec 4, 2020SaveLearn
Neutron-Antineutron Oscillation Search using a 0.37 Megaton·Year Exposure of Super-KamiokandeAs a baryon number violating process with ΔB=2, neutron-antineutron oscillation (n n) provides a unique test of baryon number conservation. We have performed a search for n n…Kamiokande Collaboration, K. Abe, C. Bronner et al.·Dec 4, 2020SaveLearn
Quark-Gluon Jet Discrimination Using Convolutional Neural NetworksCurrently, newly developed artificial intelligence techniques, in particular convolutional neural networks, are being investigated for use in data-processing and classification of particle physics…Jason Sang Hun Lee, Inkyu Park, Ian James Watson et al.·Dec 4, 2020SaveLearn
Study of Excited Ξ Baryons with the PANDA DetectorThe study of baryon excitation spectra provides insight into the inner structure of baryons. So far, most of the world-wide efforts have been directed towards N* and Δ spectroscopy.…PANDA Collaboration·Dec 3, 2020SaveLearn
Latest D0 results on exotic hadrons produced in pp collisionsPrompt and nonprompt productions of exotic multiquark states are studied using the 10.4 fb-1 data sample collected by the D0 experiment in Tevatron pp collisions at s =…A. Drutskoy·Dec 3, 2020SaveLearn
Search for long-lived particles using displaced jets in proton-proton collisions at s = 13 TeVAn inclusive search is presented for long-lived particles using displaced jets. The search uses a data sample collected with the CMS detector at the CERN LHC in 2017 and 2018, from proton-proton…CMS Collaboration·Dec 2, 2020SaveLearn