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Serguei Afanasiev

Researcher at Joint Institute for Nuclear Research

Publications -  235
Citations -  25732

Serguei Afanasiev is an academic researcher from Joint Institute for Nuclear Research. The author has contributed to research in topics: Large Hadron Collider & Higgs boson. The author has an hindex of 54, co-authored 235 publications receiving 23229 citations. Previous affiliations of Serguei Afanasiev include Petersburg Nuclear Physics Institute.

Papers
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Journal ArticleDOI

Measurement of the ratio of the production cross sections times branching fractions of B-c(+/-) -> J/psi pi(+/-) and B-+/- -> J/psi K-+/- and B(B-c(+/-) -> J/psi pi(+/-)pi(+/-)pi(-/+))/B(B-c(+/-) -> J/psi pi(+/-)) in pp collisions at root s=7 Tev

Vardan Khachatryan, +2205 more
- 13 Jan 2015 - 
TL;DR: In this article, a model-independent method was developed to measure the efficiency given the presence of resonant behavior in the three-pion system, and the ratio of the branching fractions B(B^±_c → J/ψπ^±ππ+πππ^∓)/B(B+c → ψπ+k+π+1.5 (T_B_c) was measured to be 2.55±0.80 (stat)± 0.03 (syst) ± 0.33 (+0
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Search for excited leptons in proton-proton collisions at √s=8 TeV

Vardan Khachatryan, +2288 more
- 17 Mar 2016 - 
TL;DR: In this article, a search for compositeness of electrons and muons is presented using a data sample of proton-proton collisions at a center-of-mass energy of sqrt(s) = 8 TeV collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 19.7 inverse femtobarns.
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Studies of beauty suppression via nonprompt D-0 mesons in Pb-Pb collisions at root s(NN)=5.02 TeV

Albert M. Sirunyan, +2315 more
- 09 Jul 2019 - 
TL;DR: The transverse momentum spectra of D-0 mesons from b hadron decays are measured at midrapidity (vertical bar y vertical bar D0 yield is found to be suppressed in the measured p(T) range from 2 to 100 GeV/c as compared to pp collisions as mentioned in this paper.
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A deep neural network to search for new long-lived particles decaying to jets

Albert M. Sirunyan, +2302 more
- 27 Dec 2019 - 
TL;DR: In this article, a deep neural network is used to identify jets that are significantly displaced from the proton-proton (pp) collision region in the CMS detector at the LHC.
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Electroweak production of two jets in association with a Z boson in proton–proton collisions at sqrt(s) = 13 TeV

Albert M. Sirunyan, +2288 more
- 01 Jul 2018 - 
TL;DR: In this article, a measurement of the electroweak production of two jets in association with a Z boson in proton-proton collisions at √s = 13TeV is presented, based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9fb^(-1).