Abstract: We report on measurements of the time-dependent CP violating observables in Bs0→ Ds∓K±decays using a dataset corresponding to 1.0 fb−1of pp collisions recorded with the LHCb detector. We find the CP violating observables Cf= 0.53±0.25±0.04, AfΔΓ= 0.37 ± 0.42 ± 0.20, (Formula presented.), where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the Bs0mixing phase −2βsleads to the first extraction of the CKM angle γ from Bs0→ Ds∓K±decays, finding γ = (115− 43+ 28)° modulo 180° at 68% CL, where the error contains both statistical and systematic uncertainties.[Figure not available: see fulltext.].

Measurement of CP asymmetry in Bs0→ Ds∓K±decays / Lhcb, C., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2014:11(2014), pp. 1-30. [10.1007/JHEP11(2014)060]

Measurement of CP asymmetry in Bs0→ Ds∓K±decays

Bizzeti A.;
2014

Abstract

Abstract: We report on measurements of the time-dependent CP violating observables in Bs0→ Ds∓K±decays using a dataset corresponding to 1.0 fb−1of pp collisions recorded with the LHCb detector. We find the CP violating observables Cf= 0.53±0.25±0.04, AfΔΓ= 0.37 ± 0.42 ± 0.20, (Formula presented.), where the uncertainties are statistical and systematic, respectively. Using these observables together with a recent measurement of the Bs0mixing phase −2βsleads to the first extraction of the CKM angle γ from Bs0→ Ds∓K±decays, finding γ = (115− 43+ 28)° modulo 180° at 68% CL, where the error contains both statistical and systematic uncertainties.[Figure not available: see fulltext.].
2014
2014
11
1
30
Measurement of CP asymmetry in Bs0→ Ds∓K±decays / Lhcb, C., Aaij, R., Adeva, B., Adinolfi, M., Affolder, A., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Anderson, J., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2014:11(2014), pp. 1-30. [10.1007/JHEP11(2014)060]
Lhcb, Collaboration; Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkh...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1209450
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