Details

Autor(en) / Beteiligte

• Aad, G.
• Albrand, S.
• Andrieux, M.L.
• Buat, Q.
• Clement, B.
• Collot, J.
• Crépé-Renaudin, S.
• Dechenaux, B.
• Delemontex, T.
• Delsart, P.A.
• Genest, M.H.
• Hostachy, J.Y.
• Laisne, E.
• Ledroit-Guillon, F.
• Lleres, A.
• Lucotte, A.
• Malek, F.
• Martin, P.
• Polci, F.
• Stark, J.
• Sun, X.
• Trocmé, B.
• Wang, J.
• Weydert, C.
• Biscarat, C.
• Cogneras, E.
• Rahal, G.
• Boumediene, D.
• Busato, Emmanuel
• Calvet, D.
• Calvet, S.
• Camacho Toro, Reina Coromoto
• Cinca, Diane
• Donini, J.
• Febbraro, R.
• Ghodbane, N.
• Guicheney, C.
• Liao, H.
• Pallin, D.
• Paredes Hernández, Daniela
• Podlyski, F.
• Santoni, C.
• Says, L. P.
• Vazeille, F.
• Aoun, S.
• Bee, C.P.
• Bertella, C.
• Bousson, N.
• Clémens, J.C.
• Coadou, Y.
• Djama, F.
• Etienne, F.
• Feligioni, L.
• Henry-Couannier, F.
• Hoffmann, D.
• Hubaut, F.
• Knoops, E. B. F. G.
• Le Guirriec, E.
• Li, B.
• Maurer, J.
• Monnier, E.
• Odier, J.
• Pralavorio, P.
• Qian, Z.
• Rozanov, A.
• Talby, M.
• Tannoury, N.
• Tisserant, S.
• Toth, J.
• Touchard, F.
• Vacavant, L.
• Abdel Khalek, S.
• Abreu, H.
• Andari, N.
• Arnault, C.
• Augé, E.
• Barrillon, P.
• Benoit, M.
• Binet, S.
• Bourdarios, C.
• de La Taille, C.
• de Vivie de Regie, J.B.
• Duflot, L.
• Escalier, M.
• Fayard, L.
• Fournier, D.
• Grivaz, J.-F.
• Henrot-Versillé, S.
• Hrivnac, J.
• Iconomidou-Fayard, L.
• Idarraga, J.
• Kado, M.
• Lorenzo Martinez, N.
• Lounis, A.
• Makovec, N.
• Matricon, P.
• Niedercorn, F.
• Poggioli, L.
• Puzo, P.
• Renaud, A.

Titel

Search for pair production of a new b' quark that decays to a Z boson and a bottom quark with the ATLAS detector

Ist Teil von

• Physical review letters, 2012, Vol.109

Ort / Verlag

American Physical Society

Erscheinungsjahr

2012

Quelle

PROLA

Beschreibungen/Notizen

• A search is reported for the pair production of a new quark, b', with at least one b' decaying to a Z boson and a bottom quark. The data, corresponding to 2.0 fb^-1 of integrated luminosity, were collected from pp collisions at sqrt(s) = 7 TeV with the ATLAS detector at the CERN Large Hadron Collider. Using events with a b-tagged jet and a Z boson reconstructed from opposite-charge electrons, the mass distribution of large transverse momentum b' candidates is tested for an enhancement. No evidence for a b' signal is detected in the observed mass distribution, resulting in the exclusion at 95% confidence level of b' quarks with masses m_{b'} < 400 GeV that decay entirely via b' to Z+b. In the case of a vector-like singlet b' mixing solely with the third Standard Model generation, masses m_{b'} < 358 GeV are excluded.