Observation of the suppressed ADS modes B± →[π±Kπ+π-] D K± and B± →[π±Kπ+π-] Dπ±

R. Aaij, C. Abellan Beteta, B. Adeva, M. Adinol, C. Adrover, A. Affolder, Z. Ajaltouni, J. Albrecht, F. Alessio, M. Alexander, S. Ali, G. Alkhazov, P. Alvarez Cartelle, A. A. Alves, S. Amato, S. Amerio, Y. Amhis, L. Anderlini, J. Anderson, R. AndreassenR. B. Appleby, O. Aquines, F. Archilli, A. Artamonov, M. Artuso, E. Aslanides, G. Auriemma, S. Bachmann, J. J. Back, C. Baesso, V. Balagura, W. Baldini, R. J. Barlow, C. Barschel, S. Barsuk, W. Barter, T. Bauer, A. Bay, J. Beddow, F. Bedeschi, I. Bediaga, S. Belogurov, K. Belous, I. Belyaev, E. Ben-Haim, M. Benayoun, G. Bencivenni, S. Benson, J. Benton, A. Berezhnoy, R. Bernet, M. O. Bettler, M. van Beuzekom, A. Bien, S. Bifani, T. Bird, A. Bizzeti, P. M. Bjørnstad, T. Blake, F. Blanc, J. Blouw, S. Blusk, V. Bocci, A. Bondar, N. Bondar, W. Bonivento, S. Borghi, A. Borgia, T. J.V. Bowcock, E. Bowen, C. Bozzi, T. Brambach, J. vandenBrand, J. Bressieux, D. Brett, M. Britsch, T. Britton, N. H. Brook, I. Burducea, A. Bursche, G. Busetto, J. Buytaert, S. Cadeddu, O. Callot, M. Calvi, A. Camboni, P. Campana

Resultado de la investigaciónrevisión exhaustiva

33 Citas (Scopus)

Resumen

An analysis of B ± → DK ± and B ± → Dπ ± decays is presented where the D meson is reconstructed in the four -body nal state K ±π π +π-. Using LHCb data corresponding to an integrated luminosity of 1.0 fb -1, rst observations are made of the suppressed ADS modes B ± →[π ±K π +π-] D K ± and B ± → [π ±K π +π-]Dπ ± with a signicance of 5.1σ and greater than 10σ, respectively. Measurements of CP asymmetries and CP -conserving ratios of partial widths from this family of decays are also performed. The magnitude of the ratio between the suppressed and favoured B ± → DK ± amplitudes is determined to be r K B = 0.097±0.011.

Idioma originalEnglish
Páginas (desde-hasta)44-53
Número de páginas10
PublicaciónPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen723
N.º1-3
DOI
EstadoPublished - 10 jun 2013
Publicado de forma externa

All Science Journal Classification (ASJC) codes

  • Física nuclear y de alta energía

Huella

Profundice en los temas de investigación de 'Observation of the suppressed ADS modes B<sup>±</sup> →[π<sup>±</sup>K<sup>∓</sup>π<sup>+</sup>π-] D K<sup>±</sup> and B<sup>±</sup> →[π<sup>±</sup>K<sup>∓</sup>π<sup>+</sup>π-] Dπ<sup>±</sup>'. En conjunto forman una huella única.

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