Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV
2013
Аутори
Chatrchyan, S.Adžić, Petar
Đorđević, Miloš
Ekmedžić, Marko
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2182)
Чланак у часопису
Метаподаци
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The polarizations of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) mesons are measured in proton-proton collisions at root s = 7 TeV, using a data sample of Upsilon(nS) - GT mu(+)mu(-) decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb(-1). The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters lambda(theta), lambda(phi), and lambda(theta phi), as well as the frame-invariant quantity (lambda) over tilde, are presented as a function of the Upsilon(nS) transverse momentum between 10 and 50 GeV, in the rapidity ranges vertical bar y vertical bar LT 0: 6 and 0: 6 LT vertical bar y vertical bar LT 1.2. No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region. DOI: 10.1103/PhysRevLett.110.081802
Извор:
Physical Review Letters, 2013, 110, 8Финансирање / пројекти:
- BMWF (Austria), FWF (Austria), FNRS (Belgium), FWO (Belgium), CNPq (Brazil), CAPES (Brazil), FAPERJ (Brazil), FAPESP (Brazil), MES (Bulgaria), CERN (China), CAS (China), MoST (China), NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), RPF (Cyprus), MoER (Estonia) [SF0690030s09], ERDF (Estonia), Academy of Finland, MEC (Finland), HIP (Finland), CEA (France), CNRS/IN2P3 (France), BMBF, Germany, DFG (Germany), HGF (Germany), GSRT (Greece), OTKA (Hungary), NKTH (Hungary), DAE (India), DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF (Korea), WCU (Korea), LAS (Lithuania), CINVESTAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), MSI (New Zealand), PAEC (Pakistan), MSHE (Poland), NSC (Poland), FCT (Portugal), JINR (Armenia), JINR (Belarus), JINR (Georgia), JINR (Ukraine), JINR (Uzbekistan), MON (Russia), RosAtom (Russia), RAS (Russia), RFBR (Russia), MSTD (Serbia), SEIDI (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), TAEK (Turkey), STFC (United Kingdom), DOE (USA), NSF (USA)
DOI: 10.1103/PhysRevLett.110.081802
ISSN: 0031-9007; 1079-7114
WoS: 000315141600005
Scopus: 2-s2.0-84874159070
Колекције
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 - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5318 AB - The polarizations of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) mesons are measured in proton-proton collisions at root s = 7 TeV, using a data sample of Upsilon(nS) - GT mu(+)mu(-) decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb(-1). The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters lambda(theta), lambda(phi), and lambda(theta phi), as well as the frame-invariant quantity (lambda) over tilde, are presented as a function of the Upsilon(nS) transverse momentum between 10 and 50 GeV, in the rapidity ranges vertical bar y vertical bar LT 0: 6 and 0: 6 LT vertical bar y vertical bar LT 1.2. No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region. DOI: 10.1103/PhysRevLett.110.081802 T2 - Physical Review Letters T1 - Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV VL - 110 IS - 8 DO - 10.1103/PhysRevLett.110.081802 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 = "The polarizations of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) mesons are measured in proton-proton collisions at root s = 7 TeV, using a data sample of Upsilon(nS) - GT mu(+)mu(-) decays collected by the CMS experiment, corresponding to an integrated luminosity of 4.9 fb(-1). The dimuon decay angular distributions are analyzed in three different polarization frames. The polarization parameters lambda(theta), lambda(phi), and lambda(theta phi), as well as the frame-invariant quantity (lambda) over tilde, are presented as a function of the Upsilon(nS) transverse momentum between 10 and 50 GeV, in the rapidity ranges vertical bar y vertical bar LT 0: 6 and 0: 6 LT vertical bar y vertical bar LT 1.2. No evidence of large transverse or longitudinal polarizations is seen in the explored kinematic region. DOI: 10.1103/PhysRevLett.110.081802", journal = "Physical Review Letters", title = "Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV", volume = "110", number = "8", doi = "10.1103/PhysRevLett.110.081802" }
Chatrchyan, S., Adžić, P., Đorđević, M., Ekmedžić, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2013). Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV. in Physical Review Letters, 110(8). https://doi.org/10.1103/PhysRevLett.110.081802
Chatrchyan S, Adžić P, Đorđević M, Ekmedžić M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV. in Physical Review Letters. 2013;110(8). doi:10.1103/PhysRevLett.110.081802 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Ekmedžić, Marko, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of the Upsilon(1S), Upsilon(2S), and Upsilon(3S) Polarizations in pp Collisions at root s 7 TeV" in Physical Review Letters, 110, no. 8 (2013), https://doi.org/10.1103/PhysRevLett.110.081802 . .