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| 題名: | Measurement of the Z/γ*+b-jet cross section in pp collisions at √s = 7 TeV |
| 作者: | 余欣珊;Chatrchyan, S.;Sillou, D.;Besancon, M.;Choudhury, S.;Dejardin, M.;Denegri, D.;Fabbro, B.;Faure, J.L.;Ferri, F.;Ganjour, S.;Givernaud, A.;Gras, P.;Hamel de Monchenault, G.;Jarry, P.;Locci, E.;Malcles, J.;Marionneau, M.;Millischer, L.;Rander, J.;Rosowsky, A.;Shreyber, I.;Titov, M.;Baffioni, S.;Beaudette, F.;Benhabib, L.;Bianchini, L.;Bluj, M.;Broutin, C.;Busson, Pierre;Charlot, C.;Daci, N.;Dahms, T.;Dobrzynski, L.;Elgammal, S.;Granier de Cassagnac, R.;Haguenauer, M.;Mine, P.;Mironov, C.;Ochando, C.;Paganini, P.;Sabes, D.;Salerno, R.;Sirois, Y.;Thiebaux, C.;Veelken, C.;Zabi, A.;Agram, J.-L.;Andrea, J.;Bloch, D.;Bodin, D.;Brom, J.-M.;Cardaci, M.;Chabert, E.C.;Collard, C.;Conte, E.;Drouhin, F.;Ferro, C.;Fontaine, J.-C.;Gele, D.;Goerlach, U.;Greder, S.;Juillot, P.;Karim, M.;Le Bihan, A.-C.;van Hove, P.;Fassi, F.;Mercier, D.;Baty, C.;Beauceron, S.;Beaupere, N.;Bedjidian, M.;Bondu, O.;Boudoul, G.;Boumediene, D.;Brun, H.;Chasserat, J.;Chierici, R.;Contardo, D.;Depasse, P.;El Mamouni, H.;Falkiewicz, A.;Fay, J.;Gascon, S.;Gouzevitch, M.;Ille, B.;Kurca, T.;Le Grand, T.;Lethuillier, M.;Mirabito, L.;Perries, S.;Sordini, V.;Tosi, S.;Tschudi, Y.;Verdier, P.;Viret, S. |
| 貢獻者: | 理學院物理學系 |
| 關鍵詞: | High Energy Physics - Experiment;Physics |
| 日期: | 2012-01-01 |
| 上傳時間: | 2026-04-23 12:22:48 (UTC+8) |
| 出版者: | Springer |
| 摘要: | 摘要： The production of b jets in association with a Z/gamma* boson is studied using proton-proton collisions delivered by the LHC at a centre-of-mass energy of 7 TeV and recorded by the CMS detector. The inclusive cross section for Z/gamma* + b-jet production is measured in a sample corresponding to an integrated luminosity of 2.2 inverse femtobarns. The Z/gamma* + b-jet cross section with Z/gamma* to ll (where ll = ee or mu mu) for events with the invariant mass 60 < M(ll) < 120 GeV, at least one b jet at the hadron level with pT > 25 GeV and abs(eta) < 2.1, and a separation between the leptons and the jets of Delta R > 0.5 is found to be 5.84 +/- 0.08 (stat.) +/- 0.72 (syst.) +(0.25)/-(0.44) (theory) pb. The kinematic properties of the events are also studied and found to be in agreement with the predictions made by the MadGraph event generator with the parton shower and the hadronisation performed by PYTHIA.
出版者： Springer
出版日期： 2012
出處： The journal of high energy physics, 2012, Vol.6
資源來源： Publicly Available Content Database
版權： CC0 1.0 - Universal
識別號： ISSN: 1126-6708
識別號： EISSN: 1029-8479
識別號： DOI: 10.1007/JHEP06(2012)126 |
| 顯示於類別: | [物理學系] 期刊論文
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