Article Dans Une Revue Physical Review Letters Année : 2011

Search for Stopped Gluinos in pp collisions at sqrt s = 7 TeV

D. Sillou (1) , M. Besancon (2) , M. Dejardin (2) , D. Denegri (2) , B. Fabbro (2) , J.L. Faure (2) , F. Ferri (2) , S. Ganjour (2) , F.X. Gentit (2) , A. Givernaud (2) , P. Gras (2) , G. Hamel de Monchenault (2) , P. Jarry (2) , E. Locci (2) , J. Malcles (2) , M. Marionneau (2) , L. Millischer (2) , J. Rander (2) , A. Rosowsky (2) , I. Shreyber (2) , M. Titov (2) , P. Verrecchia (2) , S. Baffioni (3) , F. Beaudette (3) , L. Bianchini (3) , M. Bluj (3) , C. Broutin (3) , Pierre Busson (3) , C. Charlot (3) , L. Dobrzynski (3) , R. Granier de Cassagnac (3) , M. Haguenauer (3) , P. Mine (3) , C. Mironov (3) , C. Ochando (3) , P. Paganini (3) , S. Porteboeuf (3) , D. Sabes (3) , R. Salerno (3) , Y. Sirois (3) , C. Thiebaux (3) , A. Zabi (3) , J.-L. Agram (4) , J. Andrea (4) , A. Besson (4) , D. Bloch (4) , D. Bodin (4) , J.-M. Brom (4) , M. Cardaci (4) , E.C. Chabert (4) , C. Collard (4) , E. Conte (4) , F. Drouhin (4) , C. Ferro (4) , J.-C. Fontaine (4) , D. Gele (4) , U. Goerlach (4) , S. Greder (4) , P. Juillot (4) , M. Karim (4) , A.-C. Le Bihan (4) , Y. Mikami (4) , P. van Hove (4) , F. Fassi (5) , D. Mercier (5) , C. Baty (6) , N. Beaupere (6) , M. Bedjidian (6) , O. Bondu (6) , G. Boudoul (6) , D. Boumediene (6) , H. Brun (6) , N. Chanon (6) , R. Chierici (6) , D. Contardo (6) , P. Depasse (6) , H. El Mamouni (7) , A. Falkiewicz (6) , J. Fay (6) , S. Gascon (6) , B. Ille (6) , T. Kurca (6) , T. Le Grand (6) , M. Lethuillier (6) , L. Mirabito (6) , S. Perries (6) , V. Sordini (6) , S. Tosi (6) , Y. Tschudi (6) , P. Verdier (6) , H. Xiao (6)
Pierre Busson
C. Mironov
P. Paganini
S. Porteboeuf
J.-L. Agram
E. Conte
D. Contardo
H. El Mamouni
  • Fonction : Auteur

Résumé

The results of the first search for long-lived gluinos produced in 7 TeV pp collisions at the CERN Large Hadron Collider are presented. The search looks for evidence of long-lived particles that stop in the CMS detector and decay in the quiescent periods between beam crossings. In a dataset with a peak instantaneous luminosity of 10^{32} cm^{-2} s^{-1}, an integrated luminosity of 10 inverse picobarns, and a search interval corresponding to 62 hours of LHC operation, no significant excess above background was observed. Limits at the 95% confidence level on gluino pair production over 13 orders of magnitude of gluino lifetime are set. For a mass difference between the gluino and the neutralino greater than 100 GeV/c^2, and assuming a branching ratio for gluino to gluon+neutralino of 100%, gluinos of mass less than 370 GeV/c^2 are excluded for lifetimes from 10 microseconds to 1000 s.

Dates et versions

in2p3-00540935 , version 1 (29-11-2010)

Identifiants

Citer

D. Sillou, M. Besancon, M. Dejardin, D. Denegri, B. Fabbro, et al.. Search for Stopped Gluinos in pp collisions at sqrt s = 7 TeV. Physical Review Letters, 2011, 106, pp.011801. ⟨10.1103/PhysRevLett.106.011801⟩. ⟨in2p3-00540935⟩
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