Showing 2020 · hep-exShow all

98 papers · 2 filters

hep-ex2020★ 103 cited

Angular analysis of the decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +959

We present an angular analysis of the decay using 9$\,\mbox{fb}^{-1}$ of collision data collected with the L…

hep-ex2020★ 19 cited

Measurement of CP violation in the decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +960

A measurement of direct CP violation in the decay is reported using a data sample corresponding to an integrated luminosity of 5.4 $\textrm{fb}^{-1}…

hep-ex2020★ 4 cited

Observation of the decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +963

A search for the decay is performed using proton-proton collision data at centre-of-mass energies of , and collected by…

hep-ex2020★ 39 cited

First observation of the decay and a measurement of

LHCb collaboration, R. Aaij, C. Abellán Beteta +961

The first observation of the suppressed semileptonic decay is reported. Using a data sample recorded in {\it pp} collisions in 2012 with the LHCb detector, co…

hep-ex2020★ 48 cited

Search for new phenomena with top quark pairs in final states with one lepton, jets, and missing transverse momentum in collisions at = 13 TeV with the ATLAS detector

ATLAS Collaboration

A 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 region…

hep-ex2020★ 362 cited

Muon reconstruction and identification efficiency in ATLAS using the full Run 2 collision data set at TeV

ATLAS Collaboration

This article documents the muon reconstruction and identification efficiency obtained by the ATLAS experiment for 139 fb of collision data at TeV collecte…

hep-ex2020★ 11 cited

Search for trilepton resonances from chargino and neutralino pair production in = 13 TeV collisions with the ATLAS detector

ATLAS Collaboration

A search is performed for the electroweak pair production of charginos and associated production of a chargino and neutralino, each of which decays through an -parity-violating…

hep-ex2020★ 27 cited

Search for dark matter produced in association with a single top quark in TeV collisions with the ATLAS detector

ATLAS Collaboration

This paper presents a search for dark matter in the context of a two-Higgs-doublet model together with an additional pseudoscalar mediator, , which decays into the dark-matter p…

hep-ex2020★ 30 cited

Observation of a new excited meson in decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +961

Using collision data corresponding to an integrated luminosity of collected with the LHCb detector at a center-of-mass energy of , the $B^0…

hep-ex2020★ 47 cited

Measurements of Higgs Bosons Decaying to Bottom Quarks from Vector Boson Fusion Production with the ATLAS Experiment at 13 TeV

ATLAS Collaboration

The paper presents a measurement of the Standard Model Higgs Boson decaying to -quark pairs in the vector boson fusion (VBF) production mode. A sample corresponding to 126 fb$^{…

hep-ex2020★ 44 cited

Search for displaced leptons in TeV collisions with the ATLAS detector

ATLAS Collaboration

A search for charged leptons with large impact parameters using 139 fb of TeV collision data from the ATLAS detector at the LHC is presented, addressing…

hep-ex2020★ 53 cited

Search for a heavy Higgs boson decaying into a boson and another heavy Higgs boson in the and final states in collisions at = 13 TeV with the ATLAS detector

ATLAS Collaboration

A search for a heavy neutral Higgs boson, , decaying into a boson and another heavy Higgs boson, , is performed using a data sample corresponding to an integrated luminos…

hep-ex2020★ 29 cited

Search for heavy neutral leptons in decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +980

A search is performed for heavy neutrinos in the decay of a boson into two muons and a jet. The data set corresponds to an integrated luminosity of approximately $3.0 \text{ fb…

hep-ex2020★ 43 cited

Search for dark matter in association with an energetic photon in pp collisions at = 13 TeV with the ATLAS detector

ATLAS Collaboration

A search for dark matter is conducted in final states containing a photon and missing transverse momentum in protonproton collisions at = 13 TeV. The data, collected…

hep-ex2020★ 26 cited

Study of decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +958

The decays are studied using a data set corresponding to an integrated luminosity of 9fb, collected with the LHCb detector in proton-pr…

hep-ex2020★ 46 cited

Observation of a new state

LHCb collaboration, R. Aaij, C. Abellán Beteta +957

Using a proton-proton collision data sample collected by the LHCb experiment, corresponding to an integrated luminosity of 8.5 fb, the observation of a new excited r…

hep-ex2020★ 113 cited

Search for squarks and gluinos in final states with jets and missing transverse momentum using 139 fb of =13 TeV collision data with the ATLAS detector

ATLAS Collaboration

A search for the supersymmetric partners of quarks and gluons (squarks and gluinos) in final states containing jets and missing transverse momentum, but no electrons or muons, is p…

hep-ex2020★ 19 cited

Search for Higgs boson production in association with a high-energy photon via vector-boson fusion with decay into bottom quark pairs at =13 TeV with the ATLAS detector

ATLAS Collaboration

A search is presented for the production of the Standard Model Higgs boson in association with a high-energy photon. With a focus on the vector-boson fusion process and the dominan…

hep-ex2020★ 7 cited

Measurement of the branching fraction of the decay

LHCb collaboration, R. Aaij, C. Abellán Beteta +949

A branching fraction measurement of the decay is presented using proton-proton collision data collected with the LHCb experiment, corresponding to…

hep-ex2020★ 31 cited

Progress towards the first measurement of charm baryon dipole moments

S. Aiola, L. Bandiera, G. Cavoto +18

Electromagnetic dipole moments of short-lived particles are sensitive to physics within and beyond the Standard Model of particle physics but have not been accessible experimentall…

hep-ex2020★ 9 cited

Measurement of the relative branching fractions of decays

LHCb collaboration, R. Aaij, C. Abellán Beteta +957

The relative branching fractions of decays, where is a pion or kaon, are measured. The analysis is performed with a data sample…

hep-ex2020★ 14 cited

Search for dark matter produced in association with a dark Higgs boson decaying into or in fully hadronic final states from TeV collisions recorded with the ATLAS detector

ATLAS Collaboration

Several extensions of the Standard Model predict the production of dark matter particles at the LHC. An uncharted signature of dark matter particles produced in association with $V…

hep-ex2020★ 29 cited

Search for charged-lepton-flavour violation in -boson decays with the ATLAS detector

ATLAS Collaboration

Leptons with essentially the same properties apart from their mass are grouped into three families (or flavours). The number of leptons of each flavour is conserved in interactions…

hep-ex2020★ 39 cited

Search for pair production of scalar leptoquarks decaying into first- or second-generation leptons and top quarks in proton-proton collisions at = 13 TeV with the ATLAS detector

ATLAS Collaboration

A search for pair production of scalar leptoquarks, each decaying into either an electron or a muon and a top quark, is presented. This is the first leptoquark search using ATLAS d…