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  - 2012
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4883
AB  - Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at root s = 7 TeV, undertaken with the CMS experiment at the LHC. The b quarks are assumed to decay exclusively to tW. The b(b) over bar - GT tW(-)(t) over barW(+) process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb(-1), observed events are compared to the standard model background predictions, and the existence of b quarks having masses below 611 GeV/c(2) is excluded at 95% confidence level.
T2  - Journal of High Energy Physics
T1  - Search for heavy bottom-like quarks in 4.9 fb(-1) of pp collisions at root s=7 TeV
IS  - 5
DO  - 10.1007/JHEP05(2012)123
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 = "2012",
abstract = "Results are presented from a search for heavy bottom-like quarks, pair-produced in pp collisions at root s = 7 TeV, undertaken with the CMS experiment at the LHC. The b quarks are assumed to decay exclusively to tW. The b(b) over bar - GT tW(-)(t) over barW(+) process can be identified by its distinctive signatures of three leptons or two leptons of same charge, and at least one b-quark jet. Using a data sample corresponding to an integrated luminosity of 4.9 fb(-1), observed events are compared to the standard model background predictions, and the existence of b quarks having masses below 611 GeV/c(2) is excluded at 95% confidence level.",
journal = "Journal of High Energy Physics",
title = "Search for heavy bottom-like quarks in 4.9 fb(-1) of pp collisions at root s=7 TeV",
number = "5",
doi = "10.1007/JHEP05(2012)123"
}

Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2012). Search for heavy bottom-like quarks in 4.9 fb(-1) of pp collisions at root s=7 TeV. in Journal of High Energy Physics(5).
https://doi.org/10.1007/JHEP05(2012)123

Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Search for heavy bottom-like quarks in 4.9 fb(-1) of pp collisions at root s=7 TeV. in Journal of High Energy Physics. 2012;(5).
doi:10.1007/JHEP05(2012)123 .

Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for heavy bottom-like quarks in 4.9 fb(-1) of pp collisions at root s=7 TeV" in Journal of High Energy Physics, no. 5 (2012),
https://doi.org/10.1007/JHEP05(2012)123 . .

TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4461
AB  - Electroweak production of the top quark is measured for the first time in pp collisions at root s = 7 TeV, using a data set collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). With an event selection optimized for t-channel production, two complementary analyses are performed. The first one exploits the special angular properties of the signal, together with background estimates from the data. The second approach uses a multivariate analysis technique to probe the compatibility with signal topology expected from electroweak top-quark production. The combined measurement of the cross section is 83.6 +/- 29.8 (stat + syst) +/- 3.3(lumi) pb, consistent with the standard model expectation.
T2  - Physical Review Letters
T1  - Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV
VL  - 107
IS  - 9
DO  - 10.1103/PhysRevLett.107.091802
ER  - 

@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2011",
abstract = "Electroweak production of the top quark is measured for the first time in pp collisions at root s = 7 TeV, using a data set collected with the CMS detector at the LHC and corresponding to an integrated luminosity of 36 pb(-1). With an event selection optimized for t-channel production, two complementary analyses are performed. The first one exploits the special angular properties of the signal, together with background estimates from the data. The second approach uses a multivariate analysis technique to probe the compatibility with signal topology expected from electroweak top-quark production. The combined measurement of the cross section is 83.6 +/- 29.8 (stat + syst) +/- 3.3(lumi) pb, consistent with the standard model expectation.",
journal = "Physical Review Letters",
title = "Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV",
volume = "107",
number = "9",
doi = "10.1103/PhysRevLett.107.091802"
}

Chatrchyan, S., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV. in Physical Review Letters, 107(9).
https://doi.org/10.1103/PhysRevLett.107.091802

Chatrchyan S, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV. in Physical Review Letters. 2011;107(9).
doi:10.1103/PhysRevLett.107.091802 .

Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of the t-Channel Single Top Quark Production Cross Section in pp Collisions at root s=7 TeV" in Physical Review Letters, 107, no. 9 (2011),
https://doi.org/10.1103/PhysRevLett.107.091802 . .

TY  - JOUR
AU  - Chatrchyan, S.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4433
AB  - A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions root s = 7TeV. Such events are expected in many new physics models, in particular a theory that is broken via a gauge-mediated mechanism, when the lightest and neutral gauginos are mass degenerate. The data sample used in this search to an integrated luminosity of 35 pb(-1) collected with the CMS detector at the No evidence of such an excess above the standard model backgrounds, dominated by production, is found. The results are presented as 95% confidence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.
T2  - Journal of High Energy Physics
T1  - Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
IS  - 6
DO  - 10.1007/JHEP06(2011)093
ER  - 

@article{
author = "Chatrchyan, S. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2011",
abstract = "A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions root s = 7TeV. Such events are expected in many new physics models, in particular a theory that is broken via a gauge-mediated mechanism, when the lightest and neutral gauginos are mass degenerate. The data sample used in this search to an integrated luminosity of 35 pb(-1) collected with the CMS detector at the No evidence of such an excess above the standard model backgrounds, dominated by production, is found. The results are presented as 95% confidence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.",
journal = "Journal of High Energy Physics",
title = "Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV",
number = "6",
doi = "10.1007/JHEP06(2011)093"
}

Chatrchyan, S., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV. in Journal of High Energy Physics(6).
https://doi.org/10.1007/JHEP06(2011)093

Chatrchyan S, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV. in Journal of High Energy Physics. 2011;(6).
doi:10.1007/JHEP06(2011)093 .

Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV" in Journal of High Energy Physics, no. 6 (2011),
https://doi.org/10.1007/JHEP06(2011)093 . .

TY  - JOUR
AU  - Khachatryan, V.
AU  - Adžić, Petar
AU  - Đorđević, Miloš
AU  - Krpić, D.
AU  - Milošević, Jovan
AU  - Milenović, Predrag
AU  - Reković, Vladimir
PY  - 2011
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/4266
AB  - The result of a search at the LHC for heavy stable charged particles produced in pp collisions at root s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3.1 pb(-1). Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0.1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c(2), using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c(2) is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.
T2  - Journal of High Energy Physics
T1  - Search for heavy stable charged particles in pp collisions at root s=7 TeV
IS  - 3
DO  - 10.1007/JHEP03(2011)024
ER  - 

@article{
author = "Khachatryan, V. and Adžić, Petar and Đorđević, Miloš and Krpić, D. and Milošević, Jovan and Milenović, Predrag and Reković, Vladimir",
year = "2011",
abstract = "The result of a search at the LHC for heavy stable charged particles produced in pp collisions at root s = 7TeV is described. The data sample was collected with the CMS detector and corresponds to an integrated luminosity of 3.1 pb(-1). Momentum and ionization-energy-loss measurements in the inner tracker detector are used to identify tracks compatible with heavy slow-moving particles. Additionally, tracks passing muon identification requirements are also analyzed for the same signature. In each case, no candidate passes the selection, with an expected background of less than 0.1 events. A lower limit at the 95% confidence level on the mass of a stable gluino is set at 398 GeV/c(2), using a conventional model of nuclear interactions that allows charged hadrons containing this particle to reach the muon detectors. A lower limit of 311 GeV/c(2) is also set for a stable gluino in a conservative scenario of complete charge suppression, where any hadron containing this particle becomes neutral before reaching the muon detectors.",
journal = "Journal of High Energy Physics",
title = "Search for heavy stable charged particles in pp collisions at root s=7 TeV",
number = "3",
doi = "10.1007/JHEP03(2011)024"
}

Khachatryan, V., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Search for heavy stable charged particles in pp collisions at root s=7 TeV. in Journal of High Energy Physics(3).
https://doi.org/10.1007/JHEP03(2011)024

Khachatryan V, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Search for heavy stable charged particles in pp collisions at root s=7 TeV. in Journal of High Energy Physics. 2011;(3).
doi:10.1007/JHEP03(2011)024 .

Khachatryan, V., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Search for heavy stable charged particles in pp collisions at root s=7 TeV" in Journal of High Energy Physics, no. 3 (2011),
https://doi.org/10.1007/JHEP03(2011)024 . .