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Ioannis Papadopoulos

Researcher at University of Ioannina

Publications -  1343
Citations -  94655

Ioannis Papadopoulos is an academic researcher from University of Ioannina. The author has contributed to research in topics: Large Hadron Collider & Lepton. The author has an hindex of 129, co-authored 1201 publications receiving 85576 citations. Previous affiliations of Ioannis Papadopoulos include CERN & Université libre de Bruxelles.

Papers
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First measurement of large area jet transverse momentum spectra in heavy-ion collisions

Albert M. Sirunyan, +2369 more
- 01 May 2021 - 
TL;DR: In this article, the effects of jet suppression on PbPb and proton-proton (pp) collisions at a nucleon-nucleon center-of-mass energy of 5.02 TeV were studied with the CMS detector at the LHC.
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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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Measurements of Higgs boson production cross sections and couplings in the diphoton decay channel at s√= 13 TeV

Albert M. Sirunyan, +2405 more
- 07 Jul 2021 - 
TL;DR: In this article, the authors measured the Higgs boson signal strength relative to the standard model (SM) prediction, including SM signal strength modifiers, production cross sections, and its couplings to other particles.
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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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Search for R-parity violating supersymmetry with displaced vertices in proton-proton collisions at √s=8 TeV

Vardan Khachatryan, +2249 more
- 25 Jan 2017 - 
TL;DR: In this paper, the authors acknowledge the enduring support for the construction and operation of the LHC and the CMS detector provided by the following funding agencies: BMWFW and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, and FAPESP (Brazil); MES (Bulgaria); CERN;