We report on a search for new particles in the diphoton channel using a data sample of pp̅ collisions at √s=1.96  TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4  fb-1. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459  GeV/c2 and 963  GeV/c2, at the 95% confidence level, for coupling parameters (k/M̅ Pl) of 0.01 and 0.1, respectively.

T. AALTONEN, B. ÁLVAREZ GONZÁLEZ, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2011). Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83, 011102-1-011102-8 [10.1103/PhysRevD.83.011102].

Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF

BRIGLIADORI, LUCA;CASTRO, ANDREA;DENINNO, MARIA MADDALENA;MAZZANTI, PAOLO;MOGGI, NICCOLO';MUSSINI, MANUEL;RIMONDI, FRANCO;ZUCCHELLI, STEFANO
2011

Abstract

We report on a search for new particles in the diphoton channel using a data sample of pp̅ collisions at √s=1.96  TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 5.4  fb-1. The diphoton invariant mass spectrum of the data agrees well with the standard model expectation. We set upper limits on the production cross section times branching ratio for the Randall-Sundrum graviton, as a function of diphoton mass. We subsequently derive lower limits on the graviton mass of 459  GeV/c2 and 963  GeV/c2, at the 95% confidence level, for coupling parameters (k/M̅ Pl) of 0.01 and 0.1, respectively.
2011
T. AALTONEN, B. ÁLVAREZ GONZÁLEZ, S. AMERIO, D. AMIDEI, A. ANASTASSOV, A. ANNOVI, et al. (2011). Search for Randall-Sundrum Gravitons in the Diphoton Channel at CDF. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 83, 011102-1-011102-8 [10.1103/PhysRevD.83.011102].
T. AALTONEN; B. ÁLVAREZ GONZÁLEZ; S. AMERIO; D. AMIDEI; A. ANASTASSOV; A. ANNOVI; J. ANTOS; G. APOLLINARI; J. APPEL; T. ARISAWA; A. ARTIKOV; J. ASAADI...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/119263
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