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First Observation of Top Quark Production in the Forward Region

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成果类型:
期刊论文
作者:
Aaij, R.*;Adeva, B.;Adinolfi, M.;Affolder, A.;Ajaltouni, Z.;...
通讯作者:
Aaij, R.
作者机构:
[Fohl, K.; Di Canto, A.; Popov, D.; Durante, P.; Matev, R.; Ferro-Luzzi, M.; Cardoso, L. A. Granado; Joram, C.; Tuning, N.; Altarelli, M. Pepe; Vidal, X. Cid; Baldini, W.; Barschel, C.; Karacson, M.; Charpentier, Ph.; Kenzie, M.; Marino, P.; Ruf, T.; Bettler, M-O.; He, J.; Poikela, T.; Forty, R.; Corti, G.; Schmidt, B.; Gaspar, C.; Carvalho Akiba, K.; Otto, A.; Stahl, S.; Linn, C.; Roiser, S.; Rauschmayr, N.; Barter, W.; Schopper, A.; Wyllie, K.; Langhans, B.; Mapelli, A.; Contu, A.; Lacarrere, D.; Couturier, B.; Leflat, A.; Cattaneo, M.; Archilli, F.; Jost, B.; Koppenburg, P.; Dettori, F.; Khanji, B.; Tonelli, D.; Rihl, M.; Lindner, R.; Dijkstra, H.; Schindler, H.; Haen, C.; Garcia, L. Castillo; Thomas, E.; Lohn, S.; Gallorini, S.; Golutvin, A.; Johnson, D.; Collins, P.; Jacobsson, R.; Neufeld, N.; Gligorov, V. V.; Schwemmer, R.; Buytaert, J.; Frei, C.; Aaij, R.; Mathe, Z.; D'Ambrosio, C.; Stagni, F.; Teubert, F.; Bondar, N.; Gys, T.; Sokoloff, M. D.; Wilkinson, G.; Closier, J.; Robbe, P.; Szczypka, P.; Frank, M.; van Herwijnen, E.; Fiore, M.; Guz, Yu.; Panman, J.; Perez, D. Campora; Easo, S.; Karbach, T. M.; Clemencic, M.; Williams, M.; Schiller, M.; Benson, S.; Alessio, F.; Coco, V.; Sridharan, S.; Trisovic, A.] CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
[Osorio Rodrigues, B.; Bediaga, I.; Massafferri, A.; Rodrigues, A. B.; dos Reis, A. C.; De Miranda, J. M.; Ferreira Rodrigues, F.] CBPF, Rio De Janeiro, Brazil.
[Hicheur, A.; Otalora Goicochea, J. M.; Lopes, J. H.; Martins Tostes, D.; Carvalho Akiba, K.; Polycarpo, E.; Potterat, C.; Souza De Paula, B.; Francisco, O.; De Paula, L.; Nasteva, I.; Gandelman, M.; Amato, S.; Rangel, M. S.; Salustino Guimaraes, V.; Vieira, D.] Univ Fed Rio de Janeiro, Rio de Janeiro, Brazil.
[Gao, Y.; Yang, Z.; Zhang, Y.; Zhong, L.; Jing, F.; An, L.; Zhang, L.; Liu, X.] Tsinghua Univ, Ctr High Energy Phys, Beijing 100084, Peoples R China.
[Chefdeville, M.; Minard, M-N.; Marchand, J. F.; Tisserand, V.; Decamp, D.; Ghez, Ph.; Qian, W.; Lees, J-P.; Beaucourt, L.; Tournefier, E.; Pietrzyk, B.; T'Jampens, S.; Deleage, N.] Univ Savoie Mt Blanc, LAPP, CNRS, IN2P3, Annecy Le Vieux, France.
通讯机构:
[Aaij, R.] C
CERN, European Org Nucl Res, CH-1211 Geneva, Switzerland.
语种:
英文
期刊:
PHYSICAL REVIEW LETTERS
ISSN:
0031-9007
年:
2015
卷:
115
期:
11
页码:
112001
基金类别:
CERN; CAPES (Brazil)CAPES; CNPq (Brazil)National Council for Scientific and Technological Development (CNPq); FAPERJ (Brazil)Carlos Chagas Filho Foundation for Research Support of the State of Rio de Janeiro (FAPERJ); FINEP (Brazil)Ciencia Tecnologia e Inovacao (FINEP); NSFC (China)National Natural Science Foundation of China (NSFC); CNRS/IN2P3 (France)Centre National de la Recherche Scientifique (CNRS); BMBF (Germany)Federal Ministry of Education & Research (BMBF); DFG (Germany)German Research Foundation (DFG); HGF (Germany); MPG (Germany)Max Planck Society; INFN (Italy)Istituto Nazionale di Fisica Nucleare (INFN); FOM (The Netherlands)FOM (The Netherlands)Netherlands Government; NWO (The Netherlands)Netherlands Organization for Scientific Research (NWO)Netherlands Government; MNiSW (Poland)Ministry of Science and Higher Education, Poland; NCN (Poland); MEN/IFA (Romania); MinES (Russia); FANO (Russia); MinECo (Spain); SNSF (Switzerland)Swiss National Science Foundation (SNSF); SER (Switzerland); NASU (Ukraine); STFC (United Kingdom)UK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC); NSF (U.S.)National Science Foundation (NSF); IN2P3 (France); KIT (Germany); SURF (The Netherlands)Netherlands Government; PIC (Spain); GridPP (United Kingdom); EPLANET; Marie Sklodowska-Curie Actions; ERC (European Union)European Research Council (ERC); Conseil general de Haute-Savoie (France)Region Auvergne-Rhone-Alpes; Labex ENIGMASS (France); OCEVU, Region Auvergne (France)Region Auvergne-Rhone-Alpes; RFBR (Russia)Russian Foundation for Basic Research (RFBR); XuntaGal (Spain); GENCAT (Spain); Royal Society (United Kingdom)Royal Society of London; Royal Commission (United Kingdom); Division Of PhysicsNational Science Foundation (NSF)NSF - Directorate for Mathematical & Physical Sciences (MPS) [1205805, 1505719] Funding Source: National Science Foundation; Science and Technology Facilities CouncilUK Research & Innovation (UKRI)Science & Technology Facilities Council (STFC) [ST/K001604/1, ST/K004646/1, 1225304, ST/N000447/1, 1208164, 1369397, ST/M001407/1, ST/L001195/1, ST/M000761/1, ST/L003112/1, ST/K001310/1, ST/K001310/1 ATLAS, 1564711, PP/E003095/1, ST/M001474/1, ST/J004332/1, 1299204, ST/K001302/1, 1225314, ST/K00140X/1, ST/M004791/1, ST/J004855/1, ST/H00100X/1, ST/K003534/1, ST/K001418/1, ST/L003163/1 LHCb Upgrades, ST/I000097/1, ST/K001310/1 LHCb Upgrades, GRIDPP, LHCb, ST/K001310/1 ATLAS Upgrades, ST/K001310/1 LHCb, PP/E000355/1, ST/I003576/1, ST/L00352X/1, ST/K000705/1, ST/H006737/1, LHCb Upgrades, 1416165, 1364044, 1565032, 1096173, ST/L003163/1, ST/L003538/1, ST/L006146/1, 1415632, ST/K00137X/1, ST/M004058/1, ST/M000729/1, ST/M004791/1 GRIDPP, ST/H00100X/2, 1511824, ST/J005495/1, ST/N000250/1, ST/K003534/1 GRIDPP, ST/K003410/1, ST/K001256/1, ST/L003392/1, ST/J50094X/1] Funding Source: researchfish
机构署名:
本校为其他机构
院系归属:
物理科学与技术学院
心理学院
摘要:
Top quark production in the forward region in proton-proton collisions is observed for the first time. The W + b final state with W -> mu nu is reconstructed using muons with a transverse momentum, p(T), larger than 25 GeV in the pseudorapidity range 2.0 < eta < 4.5. The b jets are required to have 50 < p(T) < 100 GeV and 2.2 < eta < 4.2, while the transverse component of the sum of the muon and b-jet momenta must satisfy p(T) > 20 GeV. The results are based on data corresponding to integrated luminosities of 1.0 and 2.0 fb(-1) collected at center-of-mass energies of 7 and 8 TeV by LHCb. The i...

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