A search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb(-1). The CP-violating asymmetries are measured to be A(CP)(pK-) ( = -0.020 +/- 0.013 +/- 0.019 and A(CP)(p pi-) = -0.035 +/- 0.017 +/- 0.020, and their difference A(CP)(pK-) - A(CP)(p pi-) = 0.014 +/- 0.022 +/- 0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date. (C) 2018 The Author(s). Published by Elsevier B.V.
Aaij, R., Adeva, B., Adinolfi, M., Aidala, C.a., Ajaltouni, Z., Akar, S., et al. (2018). Search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays. PHYSICS LETTERS. SECTION B, 787, 124-133 [10.1016/j.physletb.2018.10.039].
Search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays
Archilli, F.;Santovetti, E.Membro del Collaboration Group
;
2018-01-01
Abstract
A search for CP violation in Lambda(0)(b)-> pK(-) and Lambda(0)(b) -> p pi(-) decays is presented using a sample of pp collisions collected with the LHCb detector and corresponding to an integrated luminosity of 3.0fb(-1). The CP-violating asymmetries are measured to be A(CP)(pK-) ( = -0.020 +/- 0.013 +/- 0.019 and A(CP)(p pi-) = -0.035 +/- 0.017 +/- 0.020, and their difference A(CP)(pK-) - A(CP)(p pi-) = 0.014 +/- 0.022 +/- 0.010, where the first uncertainties are statistical and the second systematic. These are the most precise measurements of such asymmetries to date. (C) 2018 The Author(s). Published by Elsevier B.V.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
