Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV
2011
Аутори
Khachatryan, V.Adžić, Petar
Đorđević, Miloš
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2175)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A measurement of the angular correlations between beauty and anti-beauty hadrons (B (B) over bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B (B) over bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb(-1), shows that a sizable fraction of the B (B) over bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b (b) over bar production.
Кључне речи:
Hadron-Hadron ScatteringИзвор:
Journal of High Energy Physics, 2011, 3Финансирање / пројекти:
- FMSR (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), Academy of Sciences (Estonia), NICPB (Estonia), Academy of Finland, ME (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), CINVES-TAV (Mexico), CONACYT (Mexico), SEP (Mexico), UASLP-FAI (Mexico), PAEC (Pakistan), SCSR (Poland), FCT (Portugal), JINR (Armenia), JINR (Belarus), JINR (Georgia), JINR (Ukraine), JINR (Uzbekistan), MST (Russia), MAE (Russia), MSTD (Serbia), MICINN (Spain), CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK (Turkey), TAEK (Turkey), STFC (United Kingdom), DOE (USA), NSF (USA)
DOI: 10.1007/JHEP03(2011)136
ISSN: 1029-8479
WoS: 000289295300064
Scopus: 2-s2.0-80053400657
Колекције
Институција/група
VinčaTY - 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/123456789/4268 AB - A measurement of the angular correlations between beauty and anti-beauty hadrons (B (B) over bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B (B) over bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb(-1), shows that a sizable fraction of the B (B) over bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b (b) over bar production. T2 - Journal of High Energy Physics T1 - Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV IS - 3 DO - 10.1007/JHEP03(2011)136 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 = "A measurement of the angular correlations between beauty and anti-beauty hadrons (B (B) over bar) produced in pp collisions at a centre-of-mass energy of 7 TeV at the CERN LHC is presented, probing for the first time the region of small angular separation. The B hadrons are identified by the presence of displaced secondary vertices from their decays. The B hadron angular separation is reconstructed from the decay vertices and the primary-interaction vertex. The differential B (B) over bar production cross section, measured from a data sample collected by CMS and corresponding to an integrated luminosity of 3.1 pb(-1), shows that a sizable fraction of the B (B) over bar pairs are produced with small opening angles. These studies provide a test of QCD and further insight into the dynamics of b (b) over bar production.", journal = "Journal of High Energy Physics", title = "Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV", number = "3", doi = "10.1007/JHEP03(2011)136" }
Khachatryan, V., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV. in Journal of High Energy Physics(3). https://doi.org/10.1007/JHEP03(2011)136
Khachatryan V, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV. in Journal of High Energy Physics. 2011;(3). doi:10.1007/JHEP03(2011)136 .
Khachatryan, V., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of B(B)over-bar angular correlations based on secondary vertex reconstruction at root s=7 TeV" in Journal of High Energy Physics, no. 3 (2011), https://doi.org/10.1007/JHEP03(2011)136 . .