Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration
2012
Аутори
Chatrchyan, S.Adžić, Petar
Đorđević, Miloš
Ekmedžić, Marko
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2192)
Чланак у часопису
Метаподаци
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The Lambda b differential production cross section and the cross section ratio sigma((Lambda) over bar (b))/sigma(Lambda(b)) are measured as functions of transverse momentum p(T)(Lambda b) rapidity vertical bar y(Lambda b)vertical bar in pp collisions at root s = 7 TeV using data collected by the CMS experiment at the LHC. The measurements are based on Lambda(b) decays reconstructed in the exclusive final state J/psi Lambda, with the subsequent decays J/psi - GT mu(+)mu(-) and Lambda - GT p pi, using a data sample corresponding to an integrated luminosity of 1.9 fb(-1). The product sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) versus p(T)(Lambda b) falls faster than that of b mesons. The measured value of sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) for p(T)(Lambda b) GT 10 GeV and vertical bar y(Lambda b)vertical bar LT 2.0 is 1.16 +/- 0.06 +/- 0.12 nb, and the integrated sigma( LT (Lambda)over bar GT (b))/sigma(Lambda(b)) ratio is 1.02 +/- 0.07 +/- 0.09, where the uncertaint...ies are statistical and systematic, respectively. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.
Кључне речи:
CMS / B physicsИзвор:
Physics Letters B, 2012, 714, 2-5, 136-157Финансирање / пројекти:
- FMSR (Austria), FNRS, FWO (Belgium), CNPq, CAPES, FAPERJ, FAPESP (Brazil), MES (Bulgaria), CERN, CAS, MoST, NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), RPF (Cyprus), MoER, ERDF (Estonia), Academy of Finland, MEC, HIP (Finland), CEA, CNRS/IN2P3 (France), BMBF, Germany, DFG, HGF (Germany), GSRT (Greece), OTKA, NKTH (Hungary), DAE, DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF, WCU (Republic of Korea), LAS (Lithuania), CINVESTAV, CONACYT, SEP, UASLP-FAI (Mexico), MSI (New Zealand), PAEC (Pakistan), MSHE, NSC (Poland), FCT (Portugal), JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan), MON, RosAtom, RAS, RFBR (Russia), MSTD (Serbia), MICINN, CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK, TAEK (Turkey), STFC (United Kingdom), DOE, NSF (USA), Marie-Curie programme, European Research Council (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Belgian Federal Science Policy Office, Fonds pour la Formation a la Recherche dans lIndustrie et dans lAgriculture (FRIA-Belgium), Agentschap voor Innovatie door Wetenschap en Technologie (IWT-Belgium), Council of Science and Industrial Research, India, HOMING PLUS programme of Foundation for Polish Science, European Union, [SF0690030s09]
DOI: 10.1016/j.physletb.2012.05.063
ISSN: 0370-2693; 1873-2445
WoS: 000307680100003
Scopus: 2-s2.0-84864527198
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Институција/група
VinčaTY - 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/123456789/4998 AB - The Lambda b differential production cross section and the cross section ratio sigma((Lambda) over bar (b))/sigma(Lambda(b)) are measured as functions of transverse momentum p(T)(Lambda b) rapidity vertical bar y(Lambda b)vertical bar in pp collisions at root s = 7 TeV using data collected by the CMS experiment at the LHC. The measurements are based on Lambda(b) decays reconstructed in the exclusive final state J/psi Lambda, with the subsequent decays J/psi - GT mu(+)mu(-) and Lambda - GT p pi, using a data sample corresponding to an integrated luminosity of 1.9 fb(-1). The product sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) versus p(T)(Lambda b) falls faster than that of b mesons. The measured value of sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) for p(T)(Lambda b) GT 10 GeV and vertical bar y(Lambda b)vertical bar LT 2.0 is 1.16 +/- 0.06 +/- 0.12 nb, and the integrated sigma( LT (Lambda)over bar GT (b))/sigma(Lambda(b)) ratio is 1.02 +/- 0.07 +/- 0.09, where the uncertainties are statistical and systematic, respectively. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved. T2 - Physics Letters B T1 - Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration VL - 714 IS - 2-5 SP - 136 EP - 157 DO - 10.1016/j.physletb.2012.05.063 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 = "The Lambda b differential production cross section and the cross section ratio sigma((Lambda) over bar (b))/sigma(Lambda(b)) are measured as functions of transverse momentum p(T)(Lambda b) rapidity vertical bar y(Lambda b)vertical bar in pp collisions at root s = 7 TeV using data collected by the CMS experiment at the LHC. The measurements are based on Lambda(b) decays reconstructed in the exclusive final state J/psi Lambda, with the subsequent decays J/psi - GT mu(+)mu(-) and Lambda - GT p pi, using a data sample corresponding to an integrated luminosity of 1.9 fb(-1). The product sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) versus p(T)(Lambda b) falls faster than that of b mesons. The measured value of sigma(Lambda(b)) x B(Lambda(b) - GT J/psi Lambda) for p(T)(Lambda b) GT 10 GeV and vertical bar y(Lambda b)vertical bar LT 2.0 is 1.16 +/- 0.06 +/- 0.12 nb, and the integrated sigma( LT (Lambda)over bar GT (b))/sigma(Lambda(b)) ratio is 1.02 +/- 0.07 +/- 0.09, where the uncertainties are statistical and systematic, respectively. (C) 2012 CERN. Published by Elsevier B.V. All rights reserved.", journal = "Physics Letters B", title = "Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration", volume = "714", number = "2-5", pages = "136-157", doi = "10.1016/j.physletb.2012.05.063" }
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2012). Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration. in Physics Letters B, 714(2-5), 136-157. https://doi.org/10.1016/j.physletb.2012.05.063
Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration. in Physics Letters B. 2012;714(2-5):136-157. doi:10.1016/j.physletb.2012.05.063 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of the Lambda(b) cross section and the (Lambda)over-bar(b) to Lambda(b) ratio with J/psi Lambda decays in pp collisions at root s=7 TeV CMS Collaboration" in Physics Letters B, 714, no. 2-5 (2012):136-157, https://doi.org/10.1016/j.physletb.2012.05.063 . .