Measurements of CP observables in B±→DK± and B±→Dπ± decays are presented where the D meson is reconstructed in the final states K±π∓, π±K∓, K+K−, π+π−, K±π∓π+π−, π±K∓π+π− and π+π−π+π−. This analysis uses a sample of charged B mesons from pp collisions collected by the LHCb experiment in 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb−1. Various CP-violating effects are reported and together these measurements provide important input for the determination of the unitarity triangle angle γ. The analysis of the four-pion D decay mode is the first of its kind.

Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., et al. (2016). Measurement of CP observables in B± → DK± and B± → Dπ± with two- and four-body D decays. PHYSICS LETTERS. SECTION B, 760, 117-131 [10.1016/j.physletb.2016.06.022].

Measurement of CP observables in B± → DK± and B± → Dπ± with two- and four-body D decays

BELLOLI, NICOLETTA;CALVI, MARTA;CARNITI, PAOLO;CASSINA, LORENZO;FAZZINI, DAVIDE;GOTTI, CLAUDIO;Martinelli, M;Petruzzo, M;
2016

Abstract

Measurements of CP observables in B±→DK± and B±→Dπ± decays are presented where the D meson is reconstructed in the final states K±π∓, π±K∓, K+K−, π+π−, K±π∓π+π−, π±K∓π+π− and π+π−π+π−. This analysis uses a sample of charged B mesons from pp collisions collected by the LHCb experiment in 2011 and 2012, corresponding to an integrated luminosity of 3.0 fb−1. Various CP-violating effects are reported and together these measurements provide important input for the determination of the unitarity triangle angle γ. The analysis of the four-pion D decay mode is the first of its kind.
Articolo in rivista - Articolo scientifico
Nuclear and High Energy Physics
English
117
131
15
Aaij, R., Abellán Beteta, C., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., et al. (2016). Measurement of CP observables in B± → DK± and B± → Dπ± with two- and four-body D decays. PHYSICS LETTERS. SECTION B, 760, 117-131 [10.1016/j.physletb.2016.06.022].
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