We present a measurement of the CP-violating weak mixing phase φs using the decay B¯s0→Ds+Ds- in a data sample corresponding to 3.0fb-1 of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV. An analysis of the time evolution of the system, which does not use the constraint |λ|=1 to allow for the presence of CP violation in decay, yields φs=0.02±0.17(stat)±0.02(syst)rad, |λ|=0.91-0.15+0.18(stat)±0.02(syst). This result is consistent with the standard model expectation.

Measurement of the CP -Violating Phase φs in B ¯ s0 → Ds+ Ds- Decays / R., A., C. A., B., B., A., M., A., A., A., Z., A., S., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. a., A., S., A., S., A., Y., A., L., A.n., L., A., J., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 113:(2014). [10.1103/PhysRevLett.113.211801]

Measurement of the CP -Violating Phase φs in B ¯ s0 → Ds+ Ds- Decays

G. Casse;SARTI, ALESSIO;SCIUBBA, Adalberto;
2014

Abstract

We present a measurement of the CP-violating weak mixing phase φs using the decay B¯s0→Ds+Ds- in a data sample corresponding to 3.0fb-1 of integrated luminosity collected with the LHCb detector in pp collisions at center-of-mass energies of 7 and 8 TeV. An analysis of the time evolution of the system, which does not use the constraint |λ|=1 to allow for the presence of CP violation in decay, yields φs=0.02±0.17(stat)±0.02(syst)rad, |λ|=0.91-0.15+0.18(stat)±0.02(syst). This result is consistent with the standard model expectation.
2014
Center-of-mass energies, CP violations, Data sample, Integrated luminosity, The standard model, Time evolutions, Weak-mixing; Tellurium compounds
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the CP -Violating Phase φs in B ¯ s0 → Ds+ Ds- Decays / R., A., C. A., B., B., A., M., A., A., A., Z., A., S., A., J., A., F., A., M., A., S., A., G., A., P. A., C., J. a., A., S., A., S., A., Y., A., L., A.n., L., A., J., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - STAMPA. - 113:(2014). [10.1103/PhysRevLett.113.211801]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/665079
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