Measurement of the CKM angle γ using B <sup>0</sup> → DK <sup>*0</sup> with D → K <inf>S</inf><sup>0</sup> π <sup>+</sup> π <sup>−</sup> decays

The LHCb collaboration, R. Aaij, C. Abellán Beteta, B. Adeva, M. Adinolfi, Z. Ajaltouni, S. Akar, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. An, L. Anderlini, G. AndreassiM. Andreotti, J. E. Andrews, R. B. Appleby, O. Aquines Gutierrez, F. Archilli, P. d’Argent, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, M. Baalouch, S. Bachmann, J. J. Back, A. Badalov, C. Baesso, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, V. Batozskaya, V. Battista, A. Bay, L. Beaucourt, J. Beddow, F. Bedeschi, I. Bediaga, L. J. Bel, V. Bellee, N. Belloli, I. Belyaev, E. Ben-Haim, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, A. Bertolin, M. O. Bettler, M. van Beuzekom, S. Bifani, P. Billoir, T. Bird, A. Birnkraut, A. Bitadze, A. Bizzeti, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, M. Borsato, M. Boubdir, T. J.V. Bowcock, E. Bowen, C. Bozzi, S. Braun, M. Britsch, T. Britton, J. Brodzicka, E. Buchanan, C. Burr, A. Bursche, J. Buytaert, S. Cadeddu, R. Calabrese, M. Calvi, M. Calvo Gomez

Producción científicarevisión exhaustiva

13 Citas (Scopus)

Resumen

A model-dependent amplitude analysis of the decay B 0 → D(K S 0π +π )K ∗0 is performed using proton-proton collision data corresponding to an integrated luminosity of 3.0 fb −1, recorded at √s=7 and 8 TeV by the LHCb experiment. The CP violation observables x ± and y ±, sensitive to the CKM angle γ, are measured to bex−=−0.15±0.14±0.03±0.01,y−=0.25±0.15±0.06±0.01,x+=0.05±0.24±0.04±0.01,y+=−0.65 −0.23 +0.24±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 0π +π amplitude model. These are the most precise measurements of these observables. They correspond to γ = (80 −22 +21)° and r B 0 =0.39±0.13, where r B 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.[Figure not available: see fulltext.]

Idioma originalEnglish
Número de artículo137
PublicaciónJournal of High Energy Physics
Volumen2016
N.º8
DOI
EstadoPublished - 1 ago 2016
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física nuclear y de alta energía

Huella

Profundice en los temas de investigación de 'Measurement of the CKM angle γ using B <sup>0</sup> → DK <sup>*0</sup> with D → K <inf>S</inf><sup>0</sup> π <sup>+</sup> π <sup>−</sup> decays'. En conjunto forman una huella única.

Citar esto