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Authors

Publications

Search for fractionally charged particles in pp collisions at root s=7 TeV

Chatrchyan, S.; Adžić, Petar; Đorđević, Miloš; Ekmedžić, Marko; Krpić, D.; Milošević, Jovan; Milenović, Predrag; Reković, Vladimir

(2013) 

TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Ekmedžić, Marko
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5516
AB  - A search is presented for free heavy long-lived fractionally charged particles produced in pp collisions at root s = 7 TeV. The data sample was recorded by the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb(-1). Candidate fractionally charged particles are identified by selecting tracks with associated low charge measurements in the silicon tracking detector. Observations are found to be consistent with expectations for background processes. The results of the search are used to set upper limits on the cross section for pair production of fractionally charged, massive spin-1/2 particles that are neutral under SU(3)(C) and SU(2)(L). We exclude at 95% confidence level such particles with electric charge +/- 2e/3 with masses below 310 GeV, and those with charge +/- e/3 with masses below 140 GeV.
T2  - Physical Review D
T1  - Search for fractionally charged particles in pp collisions at root s=7 TeV
VL  - 87
IS  - 9
DO  - 10.1103/PhysRevD.87.092008
ER  - 
@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Ekmedžić, Marko and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2013",
abstract = "A search is presented for free heavy long-lived fractionally charged particles produced in pp collisions at root s = 7 TeV. The data sample was recorded by the CMS detector at the LHC and corresponds to an integrated luminosity of 5.0 fb(-1). Candidate fractionally charged particles are identified by selecting tracks with associated low charge measurements in the silicon tracking detector. Observations are found to be consistent with expectations for background processes. The results of the search are used to set upper limits on the cross section for pair production of fractionally charged, massive spin-1/2 particles that are neutral under SU(3)(C) and SU(2)(L). We exclude at 95% confidence level such particles with electric charge +/- 2e/3 with masses below 310 GeV, and those with charge +/- e/3 with masses below 140 GeV.",
journal = "Physical Review D",
title = "Search for fractionally charged particles in pp collisions at root s=7 TeV",
volume = "87",
number = "9",
doi = "10.1103/PhysRevD.87.092008"
}
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2013). Search for fractionally charged particles in pp collisions at root s=7 TeV. in Physical Review D, 87(9).
https://doi.org/10.1103/PhysRevD.87.092008
Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Search for fractionally charged particles in pp collisions at root s=7 TeV. in Physical Review D. 2013;87(9).
doi:10.1103/PhysRevD.87.092008 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for fractionally charged particles in pp collisions at root s=7 TeV" in Physical Review D, 87, no. 9 (2013),
https://doi.org/10.1103/PhysRevD.87.092008 . .
10
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Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV

Chatrchyan, S.; Adžić, Petar; Đorđević, Miloš; Ekmedžić, Marko; Krpić, D.; Milošević, Jovan; Milenović, Predrag; Reković, Vladimir

(2013) 

TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Ekmedžić, Marko
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2013
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5261
AB  - Evidence is presented for the associated production of a single top quark and W boson in pp collisions at root s = 7 TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9 fb(-1). The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the t (t) over bar background from the signal. The observed signal has a significance of 4.0 sigma and corresponds to a cross section of 16(-4)(+5) pb, in agreement with the standard model expectation of 15.6 +/- 0.4(-1.2)(+1.0) pb. DOI: 10.1103/PhysRevLett.110.022003
T2  - Physical Review Letters
T1  - Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV
VL  - 110
IS  - 2
DO  - 10.1103/PhysRevLett.110.022003
ER  - 
@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Ekmedžić, Marko and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2013",
abstract = "Evidence is presented for the associated production of a single top quark and W boson in pp collisions at root s = 7 TeV with the CMS experiment at the LHC. The analyzed data correspond to an integrated luminosity of 4.9 fb(-1). The measurement is performed using events with two leptons and a jet originated from a b quark. A multivariate analysis based on kinematic properties is utilized to separate the t (t) over bar background from the signal. The observed signal has a significance of 4.0 sigma and corresponds to a cross section of 16(-4)(+5) pb, in agreement with the standard model expectation of 15.6 +/- 0.4(-1.2)(+1.0) pb. DOI: 10.1103/PhysRevLett.110.022003",
journal = "Physical Review Letters",
title = "Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV",
volume = "110",
number = "2",
doi = "10.1103/PhysRevLett.110.022003"
}
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2013). Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV. in Physical Review Letters, 110(2).
https://doi.org/10.1103/PhysRevLett.110.022003
Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV. in Physical Review Letters. 2013;110(2).
doi:10.1103/PhysRevLett.110.022003 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Evidence for Associated Production of a Single Top Quark and W Boson in pp Collisions at root s=7 TeV" in Physical Review Letters, 110, no. 2 (2013),
https://doi.org/10.1103/PhysRevLett.110.022003 . .
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