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Armen Tumasyan

Researcher at Yerevan Physics Institute

Publications -  1330
Citations -  88558

Armen Tumasyan is an academic researcher from Yerevan Physics Institute. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 128, co-authored 1189 publications receiving 79408 citations. Previous affiliations of Armen Tumasyan include CERN & Austrian Academy of Sciences.

Papers
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Measurement of differential cross sections for Higgs boson production in the diphoton decay channel in pp collisions at √s = 8 TeV

Vardan Khachatryan, +2336 more
Abstract: A measurement is presented of differential cross sections for the Higgs boson (H) production in pp collisions at sqrt(s)=8 TeV. The analysis exploits the H to gamma gamma decay in data corresponding to an integrated luminosity of 19.7 inverse femtobarns collected by the CMS experiment at the LHC. The cross section is measured as a function of the kinematic properties of the diphoton system and of the associated jets. Results corrected for detector effects are compared with predictions at next-to-leading order and next-to-next-to-leading order in perturbative quantum chromodynamics, as well as with predictions beyond the standard model. For isolated photons with pseudorapidities abs(eta) 1/3 and >1/4, the total fiducial cross section is 32 +/- 10 fb.
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Measurements of differential Z boson production cross sections in proton-proton collisions at s√ = 13 TeV

Albert M. Sirunyan, +2375 more
TL;DR: In this article, the authors measured the differential cross sections of Z bosons produced in proton-proton collisions at 13 TeV and decaying to muons and electrons, and compared the results to theoretical predictions using fixed order, resummed, and parton shower calculations.
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Measurement of the Λ b cross section and the Λ- b to Λ b ratio with J/ψΛ decays in pp collisions at s=7 TeV

S. Chatrchyan, +2171 more
- 14 Aug 2012 - 
TL;DR: In this article, the Lambda(b) differential production cross section and the cross-section ratio for anti-Lambda (b) versus Lambda (c) production are measured as functions of transverse momentum and rapidity in pp collisions at 7 TeV using data collected by the LHC.
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Event Shapes and Azimuthal Correlations in Z+jets Events in Pp Collisions at √S=7 TeV

S. Chatrchyan, +2206 more
- 24 May 2013 - 
TL;DR: In this paper, an analysis of event shapes and azimuthal correlations is presented for events where a Z boson is produced in association with jets in proton-proton collisions.
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Evidence for associated production of a Higgs boson with a top quark pair in final states with electrons, muons, and hadronically decaying τ leptons at √s=13 TeV

Albert M. Sirunyan, +2390 more
TL;DR: In this paper, a search for the standard model Higgs boson produced in association with a top quark pair in final states with electrons, muons, and hadronically decaying leptons is presented.