Search for Narrow Resonances in the B -Tagged Dijet Mass Spectrum in Proton-Proton Collisions at S =8 Tev
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Karapınar, Güler
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HYBRID
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Yes
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Abstract
A search for narrow resonances decaying to bottom quark-antiquark pairs is presented, using a data sample of proton-proton collisions at s=8 TeV corresponding to an integrated luminosity of 19.7 fb-1. The search is extended to masses lower than those reached in typical searches for resonances decaying into jet pairs at the LHC, by taking advantage of triggers that identify jets originating from bottom quarks. No significant excess of events is observed above the background predictions. Limits are set on the product of cross section and branching fraction to bottom quarks for spin 0, 1, and 2 resonances in the mass range of 325-1200 GeV. These results improve on the limits for resonances decaying into jet pairs in the 325-500 GeV mass range.
Description
Keywords
Quarks, Narrow resonances, Quark production, Hypothetical gauge bosons, Hadron colliders, BOSONS, 550, P(P)OVER-BAR COLLISIONS, Quarks, ATLAS DETECTOR, bottom: particle identification, High Energy Physics - Experiment, COLLIDER, High Energy Physics - Experiment (hep-ex), Narrow resonances, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], info:eu-repo/classification/ddc/530, Hadron colliders, Hypothetical gauge bosons, 8000 GeV-cms, [Anahtar Kelime Yok], Multidisciplinary, 02 Physical Sciences, ANGULAR-DISTRIBUTIONS, CMS, Physics, ddc:530, Standard, Model, 001, 520, 3100 General Physics and Astronomy, mass dependence, channel cross section: branching ratio: upper limit, quark antiquark: pair, CERN LHC Coll, Q1 Science (General) / természettudomány általában, COMPOSITENESS, Quark production, Physical Sciences, CMS Collaboration, Physique des particules élémentaires, PARTICLE PHYSICS, spin: 1, spin: 2, QUARK CONTACT INTERACTIONS, branching ratio, narrow resonance, COLLISIONS, General Physics, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], dijet: mass spectrum, 530 Physics, Physics, Multidisciplinary, spin: 0, FOS: Physical sciences, bottom: pair production, 10192 Physics Institute, Fizik, Physics and Astronomy(all), 530, QUARK CONTACT INTERACTIONS; ANGULAR-DISTRIBUTIONS; P(P)OVER-BAR; COLLISIONS; ATLAS DETECTOR; PP COLLISIONS; COMPOSITENESS; COLLIDER; BOSONS, hadron-hadron scattering (experiments); dijet; b tagging; beyond standard model; cms; lhc, quark, Physics and Astronomy (all), P(P)OVER-BAR, S056ZOT, ЭБ БГУ::ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика, Science & Technology, PP COLLISIONS, PARTICLE PHYSICS;LARGE HADRON COLLIDER;CMS, hep-ex, background, high energy physics ; experimental particle physics ; LHC ; CMS ; standard model, trigger, LARGE HADRON COLLIDER, S071RSG, p p: colliding beams, resonance: production, experimental results
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01 natural sciences, 06 humanities and the arts, 0103 physical sciences, 0105 earth and related environmental sciences, 0604 arts
Citation
Sirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Search for narrow resonances in the b -tagged dijet mass spectrum in proton-proton collisions at √s =8 TeV. Physical Review Letters, 120(20). doi:10.1103/PhysRevLett.120.201801
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120
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20
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