Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV
2011
Аутори
Chatrchyan, S.Adžić, Petar
Đorđević, Miloš
Krpić, D.
Milošević, Jovan
Milenović, Predrag
Reković, Vladimir
CMS Collaboration (ukupan broj autora: 2359)
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
A measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at root s = 0.9 and 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity vertical bar eta vertical bar LT 2 and transverse momentum p(T) GT 0.5 GeV = c is studied in the azimuthal region transverse to that of the leading set of charged particles forming a track-jet. A significant growth of the average multiplicity and scalar-p(T) sum of the particles in the transverse region is observed with increasing p(T) of the leading track-jet, followed by a much slower rise above a few GeV/c. For track-jet p(T) larger than a few GeV/c, the activity in the transverse region is approximately doubled with a centre-of-mass energy increase from 0.9 to 7 TeV. Predictions of several QCD-inspired models as implemented in PYTHIA are compared to the data.
Кључне речи:
Hadron-Hadron ScatteringИзвор:
Journal of High Energy Physics, 2011, 9Финансирање / пројекти:
- FMSR (Austria), FNRS and FWO (Belgium), CNPq, CAPES, FAPERJ, and FAPESP (Brazil), MES (Bulgaria), CERN, CAS, MoST, and NSFC (China), COLCIENCIAS (Colombia), MSES (Croatia), RPF (Cyprus), Academy of Sciences and NICPB (Estonia), Academy of Finland, MEC, and HIP (Finland), CEA and CNRS/IN2P3 (France), BMBF, DFG, and HGF (Germany), GSRT (Greece), OTKA and NKTH (Hungary), DAE and DST (India), IPM (Iran), SFI (Ireland), INFN (Italy), NRF and WCU (Korea), LAS (Lithuania), CINVES-TAV, CONACYT, SEP, and UASLP-FAI (Mexico), MSI (New Zealand), PAEC (Pakistan), SCSR (Poland), FCT (Portugal), JINR (Armenia, Belarus, Georgia, Ukraine, Uzbekistan), MST and MAE (Russia), MSTD (Serbia), MICINN and CPAN (Spain), Swiss Funding Agencies (Switzerland), NSC (Taipei), TUBITAK and TAEK (Turkey), STFC (United Kingdom), DOE and NSF (USA), Marie-Curie programme, European Research Council (European Union), Leventis Foundation, A.P. Sloan Foundation, Alexander von Humboldt Foundation, Associazione per lo Sviluppo Scientifico e Tecnologico del Piemonte (Italy), 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)
DOI: 10.1007/JHEP09(2011)109
ISSN: 1029-8479
WoS: 000296086700034
Scopus: 2-s2.0-84863282065
Колекције
Институција/група
VinčaTY - 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/123456789/4529 AB - A measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at root s = 0.9 and 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity vertical bar eta vertical bar LT 2 and transverse momentum p(T) GT 0.5 GeV = c is studied in the azimuthal region transverse to that of the leading set of charged particles forming a track-jet. A significant growth of the average multiplicity and scalar-p(T) sum of the particles in the transverse region is observed with increasing p(T) of the leading track-jet, followed by a much slower rise above a few GeV/c. For track-jet p(T) larger than a few GeV/c, the activity in the transverse region is approximately doubled with a centre-of-mass energy increase from 0.9 to 7 TeV. Predictions of several QCD-inspired models as implemented in PYTHIA are compared to the data. T2 - Journal of High Energy Physics T1 - Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV IS - 9 DO - 10.1007/JHEP09(2011)109 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 measurement of the underlying activity in events with a jet of transverse momentum in the several GeV region is performed in proton-proton collisions at root s = 0.9 and 7 TeV, using data collected by the CMS experiment at the LHC. The production of charged particles with pseudorapidity vertical bar eta vertical bar LT 2 and transverse momentum p(T) GT 0.5 GeV = c is studied in the azimuthal region transverse to that of the leading set of charged particles forming a track-jet. A significant growth of the average multiplicity and scalar-p(T) sum of the particles in the transverse region is observed with increasing p(T) of the leading track-jet, followed by a much slower rise above a few GeV/c. For track-jet p(T) larger than a few GeV/c, the activity in the transverse region is approximately doubled with a centre-of-mass energy increase from 0.9 to 7 TeV. Predictions of several QCD-inspired models as implemented in PYTHIA are compared to the data.", journal = "Journal of High Energy Physics", title = "Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV", number = "9", doi = "10.1007/JHEP09(2011)109" }
Chatrchyan, S., Adžić, P., Đorđević, M., Krpić, D., Milošević, J., Milenović, P.,& Reković, V.. (2011). Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV. in Journal of High Energy Physics(9). https://doi.org/10.1007/JHEP09(2011)109
Chatrchyan S, Adžić P, Đorđević M, Krpić D, Milošević J, Milenović P, Reković V. Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV. in Journal of High Energy Physics. 2011;(9). doi:10.1007/JHEP09(2011)109 .
Chatrchyan, S., Adžić, Petar, Đorđević, Miloš, Krpić, D., Milošević, Jovan, Milenović, Predrag, Reković, Vladimir, "Measurement of the underlying event activity at the LHC with root s=7 TeV and comparison with root s=0.9 TeV" in Journal of High Energy Physics, no. 9 (2011), https://doi.org/10.1007/JHEP09(2011)109 . .