We describe a search for anomalous production of events with two leptons (e or mu) of the same electric charge in p(p) over bar collisions at a center-of-mass energy of 1.96 TeV. Many extensions to the standard model predict the production of two leptons of the same electric charge. This search has a significant increase in sensitivity compared to earlier searches. Using a data sample corresponding to 1 fb(-1) of integrated luminosity recorded by the CDF II detector, we observe no significant excess in an inclusive selection (expect 33.2 +/- 4.7 events, observe 44) or in a supersymmetry-optimized selection (expect 7.8 +/- 1.1 events, observe 13.)

CDF Collaboration, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, et al. (2007). Inclusive Search for New Physics with Like-Sign Dilepton Events in p anti-p Collisions at s**(1/2) = 1.96 TeV. PHYSICAL REVIEW LETTERS, 98, 1-7 [10.1103/PhysRevLett.98.221803].

Inclusive Search for New Physics with Like-Sign Dilepton Events in p anti-p Collisions at s**(1/2) = 1.96 TeV

M. Casarsa;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MARGAROLI, FABRIZIO;MOGGI, NICCOLO';RIMONDI, FRANCO;J. Zhou;ZUCCHELLI, STEFANO
2007

Abstract

We describe a search for anomalous production of events with two leptons (e or mu) of the same electric charge in p(p) over bar collisions at a center-of-mass energy of 1.96 TeV. Many extensions to the standard model predict the production of two leptons of the same electric charge. This search has a significant increase in sensitivity compared to earlier searches. Using a data sample corresponding to 1 fb(-1) of integrated luminosity recorded by the CDF II detector, we observe no significant excess in an inclusive selection (expect 33.2 +/- 4.7 events, observe 44) or in a supersymmetry-optimized selection (expect 7.8 +/- 1.1 events, observe 13.)
2007
CDF Collaboration, A. Abulencia, J. Adelman, T. Affolder, T. Akimoto, M. G. Albrow, et al. (2007). Inclusive Search for New Physics with Like-Sign Dilepton Events in p anti-p Collisions at s**(1/2) = 1.96 TeV. PHYSICAL REVIEW LETTERS, 98, 1-7 [10.1103/PhysRevLett.98.221803].
CDF Collaboration; A. Abulencia; J. Adelman; T. Affolder; T. Akimoto; M. G. Albrow; D. Ambrose; S. Amerio; D. Amidei; A. Anastassov; K. Anikeev; A. An...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/53718
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