Browsing by Author "Aad, G."
Now showing items 1-18 of 18
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The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Abeling, K.; Adiguzel, A. (SPRINGER, 2022)The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016-2018 data taking period is discussed. In 2016, 2017, and 2018 the ... -
Constraints on Higgs boson production with large transverse momentum using H -> b(b)over-bar decays in the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Cetin, Serkant Ali; Ozturk, Sertac (AMER PHYSICAL SOC, 2022)This paper reports constraints on Higgs boson production with transverse momentum above 1 TeV. The analyzed data from proton-proton collisions at a center-of-mass energy of 13 TeV were recorded with the ATLAS detector at ... -
Determination of the parton distribution functions of the proton using diverse ATLAS data from pp collisions at root s=7, 8 and 13 TeV
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Abeling, K.; Cetin, Serkant Ali; Beddall, Andrew John; Ozturk, Sertac (SPRINGER, 2022)This paper presents an analysis at next-to-next-to-leading order in the theory of quantum chromodynamics for the determination of a new set of proton parton distribution functions using diverse measurements in pp collisions ... -
Direct constraint on the Higgs-charm coupling from a search for Higgs boson decays into charm quarks with the ATLAS detector
Aad, G.; Beddal, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac; Simsek, Sinem (SPRINGER, 2022)A search for the Higgs boson decaying into a pair of charm quarks is presented. The analysis uses proton- proton collisions to target the production of a Higgs boson in association with a leptonically decaying W or Z boson. ... -
Measurement of b-quark fragmentation properties in jets using the decay B ± → J/ψK ± in pp collisions at √s = 13 TeV with the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D.C.; Abed Abud, A.; Abeling, K. (Springer Science and Business Media Deutschland GmbH, 2021)The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb−1 of pp collisions at s = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The ... -
Measurement of the c-jet mistagging efficiency in t(t)over-bar events using pp collision data at root s=13 TeV collected with the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Abeling, K.; Cetin, Serkant Ali (Springer, 2022)A technique is presented to measure the effi-ciency with whichc-jets are mistagged asb-jets (mistaggingefficiency) usingt ̄tevents, where one of theWbosons decaysinto an electron or muon and a neutrino and the other ... -
Measurements of azimuthal anisotropies of jet production in Pb collisions at root(NN)-N-s=5.02 TeV with the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Cetin, Serkant Ali; Ozturk, Sertac (AMER PHYSICAL SOC, 2022)The azimuthal variation of jet yields in heavy-ion collisions provides information about the path-length dependence of the energy loss experienced by partons passing through the hot, dense nuclear matter known as the ... -
Measurements of differential cross-sections in top-quark pair events with a high transverse momentum top quark and limits on beyond the Standard Model contributions to top-quark pair production with the ATLAS detector at root s=13 TeV
Aad, G.; Beddall, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac; Simsek, Sinem (SPRINGER, 2022)Cross-section measurements of top-quark pair production where the hadronically decaying top quark has transverse momentum greater than 355 GeV and the other top quark decays into l nu b are presented using 139 fb(-1) of ... -
Measurements of the Higgs boson inclusive and differential fiducial cross-sections in the diphoton decay channel with pp collisions at root s=13 TeV with the ATLAS detector
Aad, G.; Beddal, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac; Simsek, Sinem (SPRINGER, 2022)A measurement of inclusive and differential fiducial cross-sections for the production of the Higgs boson decaying into two photons is performed using 139 fb(-1) of proton-proton collision data recorded at root s = 13 TeV ... -
Modelling and computational improvements to the simulation of single vector-boson plus jet processes for the ATLAS experiment
Aad, G.; Abbott, B.; Beddal, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac (SPRINGER, 2022)This paper presents updated Monte Carlo configurations used to model the production of single electroweak vector bosons (W, Z/gamma*) in association with jets in proton-proton collisions for the ATLAS experiment at the ... -
Observation of electroweak production of two jets in association with an isolated photon and missing transverse momentum, and search for a Higgs boson decaying into invisible particles at 13 TeV with the ATLAS detector
Aad, G.; Abbott, B.; Zwalinski, L.; Cetin, S.A.; Abidi, S. H. (Springer, 2022)This paper presents a measurement of the electroweak production of two jets in association with a Z gamma pair, with the Z boson decaying into two neutrinos. It also presents a search for invisible or partially invisible ... -
Search for dark matter produced in association with a standard model higgs boson decaying into b-quarks using the full Run 2 dataset from the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; Cetin, S. A. (SPRINGER, 2021)The production of dark matter in association with Higgs bosons is predicted in several extensions of the Standard Model. An exploration of such scenarios is presented, considering final states with missing transverse ... -
Search for exotic decays of the Higgs boson into long-lived particles in pp collisions at root s=13 TeV using displaced vertices in the ATLAS inner detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Abeling, K.; Abhayasinghe, D. K.; Abidi, S. H.; Abramowicz, H. (SPRINGER, 2021)A novel search for exotic decays of the Higgs boson into pairs of long-lived neutral particles, each decaying into a bottom quark pair, is performed using 139 fb(-1)of root s = 13 TeV proton-proton collision data collected ... -
Search for heavy particles in the b -tagged dijet mass distribution with additional b -tagged jets in proton-proton collisions at s =13 TeV with the ATLAS experiment
Aad, G.; Abbott, B.; Abbott, D.C.; Abed Abud, A.; Abeling, K.; Abhayasinghe, D.K.; Cetin, S. A. (American Physical Society, 2022)A search optimized for new heavy particles decaying to two b-quarks and produced in association with additional b-quarks is reported. The sensitivity is improved by b-tagging at least one lower-pT jet in addition to the ... -
Search for Higgs boson decays into a pair of pseudoscalar particles in the bbμμ final state with the ATLAS detector in pp collisions at s =13 TeV
Aad, G.; Abbott, B.; Abbott, D.C.; Abed Abud, A.; Abeling, K.; Cetin, S. A. (American Physical Society, 2022)This paper presents a search for decays of the Higgs boson with a mass of 125 GeV into a pair of new pseudoscalar particles, H→aa, where one a-boson decays into a b-quark pair and the other into a muon pair. The search ... -
Search for invisible Higgs-boson decays in events with vector-boson fusion signatures using 139 fb(-1) of proton-proton data recorded by the ATLAS experiment
Aad, G.; Abbott, B.; Abbott, D. C.; Abud, A. Abed; Ozturk, Sertac; Cetin, Serkant Ali; Beddal, Andrew John; Simsek Sinem (SPRINGER, 2022)A direct search for Higgs bosons produced via vector-boson fusion and subsequently decaying into invisible particles is reported. The analysis uses 139 fb(-1) of pp collision data at a centre-of-mass energy of root s =13 ... -
Search for neutral long-lived particles in pp collisions at root s = 13 TeV that decay into displaced hadronic jets in the ATLAS calorimeter
Aad, G.; Abbott, B.; Beddall, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac; Simsek, Sinem (SPRINGER, 2022)A search for decays of pair-produced neutral long-lived particles (LLPs) is presented using 139 fb(-1) of proton-proton collision data collected by the ATLAS detector at the LHC in 2015-2018 at a centre-of-mass energy of ... -
Search for single production of a vectorlike T quark decaying into a Higgs boson and top quark with fully hadronic final states using the ATLAS detector
Aad, G.; Beddall, Andrew John; Cetin, Serkant Ali; Ozturk, Sertac; Simsek, Sinem (AMER PHYSICAL SOC, 2022)A search is made for a vectorlike T quark decaying into a Higgs boson and a top quark in 13 TeV protonproton collisions using the ATLAS detector at the Large Hadron Collider with a data sample corresponding to an integrated ...
