Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at $ \sqrt{s}=7\;TeV $

descriptionPublicationkeyboard_double_arrow_right Article , Preprint 01 Dec 2012Embargo end date: 01 Jan 2012 Italy, Italy, United Kingdom, Italy, Italy, Belgium, Italy, United States, United Kingdom, Italy, United Kingdom, Turkey, Italy, Belgium, Brazil, Italy, France, Italy, Spain, Italy, Italy, Greece, France, Germany, Italy, Italy, Italy, Italy, Italy, Italy, United States, Croatia, Spain, Italy, Portugal, Italy, France, Germany, Italy, Italy, Belgium English Publisher:Springer Science and Business Media LLCJournal:Journal of High Energy Physics, volume 2,012 (eissn: 1029-8479,

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Authors: Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; +193 Authors

Chatrchyan, S.; Khachatryan, V.; Sirunyan, A. M.; Tumasyan, A.; Adam, W.; Aguilo, E.; Bergauer, T.; Dragicevic, M.; Eroe, J.; Fabjan, C.; Friedl, M.; Fruehwirth, R.; Ghete, V.; M.; Hoermann, N.; Hrubec, J.; Jeitler, M.; Kiesenhofer, W.; Knuenz, V.; Krammer, M.; Kraetschmer, I.; Liko, D.; Mikulec, I.; Pernicka, M.; Rabady, D.; Rahbaran, B.; Rohringer, C.; Rohringer, H.; Schoefbeck, R.; Strauss, J.; Taurok, A.; Waltenberger, W.; Wulz, C-E.; Mossolov, V.; Shumeiko, N.; Gonzalez, J. Suarez; Bansal, M.; Bansal, S.; Cornelis, T.; De Wolf, E. A.; Janssen, X.; Luyckx, S.; Mucibello, L.; Ochesanu, S.; Roland, B.; Rougny, R.; Selvaggi, M.; Van Haevermaet, H.; Van Mechelen, P.; Van; Remortel, N.; Van Spilbeeck, A.; Blekman, F.; Blyweert, S.; D'Hondt, J.; Suarez, R. Gonzalez; Kalogeropoulos, A.; Maes, M.; Olbrechts, A.; Tavernier, S.; Van Doninck, W.; Van Mulders; P.; Van Onsem, G. P.; Villella, I.; Clerbaux, B.; De; Lentdecker, G.; Dero, V.; Gay, A. P. R.; Hreus, T.; Leonard; A.; Marage, P. E.; Mohammadi, A.; Reis, T.; Thomas, L.; Vander Velde, C.; Vanlaer, P.; Wang, J.; Adler, V.; Beernaert, K.; Cimmino, A.; Costantini, S.; Garcia, G.; Grunewald, M.; Klein, B.; Lellouch, J.; Marinov, A.; Mccartin, J.; Rios, A. A. Ocampo; Ryckbosch, D.; Sigamani, M.; Strobbe, N.; Thyssen, F.; Tytgat, M.; Walsh, S.; Yazgan; E.; Zaganidis, N.; Basegmez, S.; Bruno, G.; Castello, R.; Ceard, L.; Delaere, C.; du Pree, T.; Favart, D.; Forthomme; L.; Giammanco, A.; Hollar, J.; Lemaitre, V.; Liao, J.; Militaru, O.; Nuttens, C.; Pagano, D.; Pin, A.; Piotrzkowski, K.; Garcia, J. M. Vizan; Beliy, N.; Caebergs, T.; Daubie, E.; Hammad, G. H.; Alves, G. A.; Correa Martins; Junior, M.; Martins, T.; Pol, M. E.; Souza, M. H. G.; Alda; Junior, W. L.; Carvalho, W.; Custodio, A.; Da Costa, E. M.; De Jesus Damiao, D.; De Oliveira Martins, C.; Fonseca De Souza, S.; Malbouisson, H.; Malek, M.; Matos Figueiredo, D.; Mundim; L.; Nogima, H.; Prado Da Silva, W. L.; Santoro, A.; Soares; Jorge, L.; Sznajder, A.; Vilela Pereira, A.; Anjos, T. S.; Bernardes, C. A.; Dias, F. A.; Fernandez Perez Tomei, T. R.; Gregores, E. M.; Lagana, C.; Marinho, F.; Mercadante, P. G.; Novaes, S. F.; Padula, Sandra S.; Genchev, V.; Iaydjiev, P.; Piperov, S.; Rodozov, M.; Stoykova, S.; Sultanov, G.; Tcholakov, V.; Trayanov, R.; Vutova, M.; Dimitrov, A.; Hadjiiska, R.; Kozhuharov, V.; Litov, L.; Pavlov, B.; Petkov, P.; Bian, J. G.; Chen, G. M.; Chen, H. S.; Jiang, C.; H.; Liang, D.; Liang, S.; Meng, X.; Tao, J.; Wang, J.; Wang, X.; Wang, Z.; Xiao, H.; Xu, M.; Zang, J.; Zhang, Z.; Asawatangtrakuldee, C.; Ban, Y.; Guo, Y.; Li, W.; Liu; S.; Mao, Y.; Qian, S. J.; Teng, H.; Wang, D.;

doi: 10.1007/jhep12(2012)055 , 10.48550/arxiv.1210.5627

arXiv: 1210.5627

Search for third-generation leptoquarks and scalar bottom quarks in pp collisions at $ \sqrt{s}=7\;TeV $

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Abstract

Abstract Results are presented from a search for third-generation leptoquarks and scalar bottom quarks in a sample of proton-proton collisions at $ \sqrt{s}=7\;TeV $ collected by the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.7 fb−1. A scenario where the new particles are pair produced and each decays to a b quark plus a tau neutrino or neutralino is considered. The number of observed events is found to be in agreement with the standard model prediction. Upper limits are set at 95% confidence level on the production cross sections. Leptoquarks with masses below ~450 GeV are excluded. Upper limits in the mass plane of the scalar quark and neutralino are set such that scalar bottom quark masses up to 410 GeV are excluded for neutralino masses of 50 GeV.

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Italy, Italy, United Kingdom, Italy, Italy, Belgium, Italy, United States, United Kingdom, Italy, United Kingdom, Turkey, Italy, Belgium, Brazil, Italy, France, Italy, Spain, Italy, Italy, Greece, France, Germany, Italy, Italy, Italy, Italy, Italy, Italy, United States, Croatia, Spain, Italy, Portugal, Italy, France, Germany, Italy, Italy, Belgium

Related Organizations

National Institute for Nuclear Physics
Italy
Scuola Normale Superiore
Italy
Karlsruhe Institute of Technology
Germany
University of Pavia
Italy
Ghent University
Belgium

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Keywords

550, neutralino: mass, bottom: particle identification, channel cross section: upper limit, PARTICLE PHYSICS; LARGE HADRON COLLIDER; CMS, High Energy Physics - Experiment, Scattering, High Energy Physics - Experiment (hep-ex), Jets, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], high energy collider; LHC; CMS; leptoquarks, info:eu-repo/classification/ddc/530, Fisica delle particelle, HEP; CMS; LHC, CMS, Physics, transverse energy: missing-energy, ddc:530, new particle: search for, Upper limits, mass dependence, CERN LHC Coll, 7000 GeV-cms, Quark, Physique des particules élémentaires, PARTICLE PHYSICS, sbottom: pair production, leptoquark: pair production, Hadron-Hadron, p p: scattering, Nuclear and High Energy Physics, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], Hadron-Hadron; Scattering; Nuclear and High Energy Physics, Neutralino, Hadron-Hadron; Scattering;, FOS: Physical sciences, Hadron-hadron scattering, 530, PHYSICS, sbottom --> bottom neutralino, Leptoquarks, PHENOMENOLOGY, Hadron-Hadron Scattering, background, CONSTRAINTS, sbottom: mass, Física, LARGE HADRON COLLIDER, leptoquark: mass: lower limit, leptoquark --> bottom neutrino/tau, PARTON DISTRIBUTIONS, SQUARK, experimental results

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