A model-dependent amplitude analysis of the decay B 0 → D(K S 0 π + π −)K ∗ 0 is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1, recorded at √=7 and 8 TeV by the LHCb experiment. The CP violation observables x ± and y ±, sensitive to the CKM angle γ, are measured to be −=−0.15±0.14±0.03±0.01,−=0.25±0.15±0.06±0.01,+=0.05±0.24±0.04±0.01,+=−0.65+0.24−0.23±0.08±0.01, where the first uncertainties are statistical, the second systematic and the third arise from the uncertainty on the D → K S 0 π + π − amplitude model. These are the most precise measurements of these observables. They correspond to γ = (80 − 22 + 21 )° and 0=0.39±0.13 , where 0 is the magnitude of the ratio of the suppressed and favoured B 0 → DK + π − decay amplitudes, in a Kπ mass region of ±50 MeV around the K *(892)0 mass and for an absolute value of the cosine of the K *0 decay angle larger than 0.4.

Measurement of the CKM angle γ using B0→ DK*0with D → K<inf>S</inf>0π+π−decays / The LHCb, C., Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., 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., Andreassi, G., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 2016:8(2016). [10.1007/JHEP08(2016)137]

Measurement of the CKM angle γ using B0→ DK*0with D → KS0π+π−decays

Capriotti, L.;Casse, G.;Sarti, A.;Sciubba, A.;
2016

Abstract

A model-dependent amplitude analysis of the decay B 0 → D(K S 0 π + π −)K ∗ 0 is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb−1, recorded at √=7 and 8 TeV by the LHCb experiment. The CP violation observables x ± and y ±, sensitive to the CKM angle γ, are measured to be −=−0.15±0.14±0.03±0.01,−=0.25±0.15±0.06±0.01,+=0.05±0.24±0.04±0.01,+=−0.65+0.24−0.23±0.08±0.01, where the first uncertainties are statistical, the second systematic and the third arise from the uncertainty on the D → K S 0 π + π − amplitude model. These are the most precise measurements of these observables. They correspond to γ = (80 − 22 + 21 )° and 0=0.39±0.13 , where 0 is the magnitude of the ratio of the suppressed and favoured B 0 → DK + π − decay amplitudes, in a Kπ mass region of ±50 MeV around the K *(892)0 mass and for an absolute value of the cosine of the K *0 decay angle larger than 0.4.
2016
B physics CKM angle gamma CP violation Flavor physics Hadron-Hadron scattering (experiments)
01 Pubblicazione su rivista::01a Articolo in rivista
Measurement of the CKM angle γ using B0→ DK*0with D → K<inf>S</inf>0π+π−decays / The LHCb, C., Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., 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., Andreassi, G., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1126-6708. - 2016:8(2016). [10.1007/JHEP08(2016)137]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1074114
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