A measurement of the direct CP asymmetry between inclusive b→sγ decays was performed. It was observed that this asymmetry was expected to be less than 0.01 in the standard model but could be enhanced up to 0.10. The different components of the signal and background events was also identified that was described by a crystal ball function. Monte Carlo simulations were also applied to the four contributions to the beam energy substituted mass distribution of events.

Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Measurement of the direct CP asymmetry in b → sγ decays. PHYSICAL REVIEW LETTERS, 93(2) [10.1103/PhysRevLett.93.021804].

Measurement of the direct CP asymmetry in b → sγ decays

CARPINELLI, Massimo;
2004

Abstract

A measurement of the direct CP asymmetry between inclusive b→sγ decays was performed. It was observed that this asymmetry was expected to be less than 0.01 in the standard model but could be enhanced up to 0.10. The different components of the signal and background events was also identified that was described by a crystal ball function. Monte Carlo simulations were also applied to the four contributions to the beam energy substituted mass distribution of events.
Articolo in rivista - Articolo scientifico
Calorimeters; Computer simulation; Continuum mechanics; Electromagnetism; Magnetic fields; Monte Carlo methods; Nuclear physics; Perturbation techniques; Photons; Resonance; Solenoids; Beam energy; Hadronic mass; Mass energy; Photon energy; High energy physics;
English
2004
93
2
021804
none
Aubert, B., Barate, R., Boutigny, D., Couderc, F., Gaillard, J., Hicheur, A., et al. (2004). Measurement of the direct CP asymmetry in b → sγ decays. PHYSICAL REVIEW LETTERS, 93(2) [10.1103/PhysRevLett.93.021804].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/389917
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