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| 題名: | Search for anomalous production of highly boosted Z bosons decaying to μ+μ− in proton-proton collisions at [Formula presented] TeV |
| 作者: | 余欣珊;Chatrchyan, S.;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.;Millischer, L.;Nayak, A.;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.;Granier de Cassagnac, R.;Haguenauer, M.;Mine, P.;Mironov, C.;Naranjo, I.N.;Nguyen, M.;Ochando, C.;Paganini, P.;Sabes, D.;Salerno, R.;Sirois, Y.;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.;Juillot, P.;Le Bihan, A.-C.;van Hove, P.;Fassi, F.;Mercier, D.;Beauceron, S.;Beaupere, N.;Bondu, O.;Boudoul, G.;Chasserat, J.;Chierici, R.;Contardo, D.;Depasse, P.;El Mamouni, H.;Fay, J.;Gascon, S.;Gouzevitch, M.;Ille, B.;Kurca, T.;Lethuillier, M.;Mirabito, L.;Perries, S.;Sordini, V.;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: | 2013-05-13 |
| 上傳時間: | 2026-04-23 12:55:17 (UTC+8) |
| 出版者: | Elsevier |
| 摘要: | 摘要： Results are reported from a search for the anomalous production of highly boosted Z bosons with large transverse momentum and decaying to the dimuon final state. Such Z bosons may be produced in the decays of new heavy particles. The search uses pp collision data at sqrt(s) = 7 TeV, corresponding to an integrated luminosity of 5.0 inverse femtobarns recorded with the CMS detector. The shape of the observed transverse-momentum distribution of Z bosons is consistent with standard-model expectations. Constraints are obtained on models predicting the production of excited quarks decaying via electroweak processes. For excited-quark decays involving only standard-model gauge bosons and coupling strengths, masses of excited quarks below 1.94 TeV are excluded at the 95% confidence level, assuming a compositeness scale equal to the excited-quark mass. For excited-quark production via novel contact interactions, masses below 2.22 TeV are excluded, even if the excited quarks do not couple to gluons.
出版者： Elsevier
出版日期： 2013
出處： Physics letters. B, 2013, Vol.722, p.28-47
資源來源： Elsevier ScienceDirect Journals Complete
版權： CC0 1.0 - Universal
識別號： ISSN: 0370-2693
識別號： EISSN: 1873-2445
識別號： DOI: 10.1016/j.physletb.2013.03.037 |
| 顯示於類別: | [物理學系] 期刊論文
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