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Title: Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+
Author: Alfonso Albero, Alejandro
Badalov, Alexey
Calvo Gómez, Míriam
Camboni, Alessandro
Coquereau, Samuel
Fernandez, G.
Garrido Beltrán, Lluís
Gascón Fora, David
Graciani Díaz, Ricardo
Graugés Pous, Eugeni
Marin Benito, Carla
Picatoste Olloqui, Eduardo
Rives Molina, Vicente José
Vilasis-Cardona, Xavier
LHCb Collaboration
Keywords: Física de partícules
Particle physics
Issue Date: 25-Jun-2018
Publisher: American Physical Society
Abstract: The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay ¯ B 0 → K 0 S π + π − is studied using a p p collision data sample recorded with the LHCb detector, corresponding to an integrated luminosity of 3.0     fb − 1 . The decay amplitude is described with an isobar model. Relative contributions of the isobar amplitudes to the ¯ B 0 → K 0 S π + π − decay branching fraction and C P asymmetries of the flavor-specific amplitudes are measured. The C P asymmetry between the conjugate ¯ B 0 → K ∗ ( 892 ) − π + and B 0 → K ∗ ( 892 ) + π − decay rates is determined to be − 0.308 ± 0.062.
Note: Reproducció del document publicat a:
It is part of: Physical Review Letters, 2018, vol. 120, num. 26, p. 261801
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ISSN: 0031-9007
Appears in Collections:Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))
Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)
Articles publicats en revistes (Física Quàntica i Astrofísica)

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