The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay B0→KS0π+π- is studied using a pp 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 B0→KS0π+π- decay branching fraction and CP asymmetries of the flavor-specific amplitudes are measured. The CP asymmetry between the conjugate B0→K∗(892)-π+ and B0→K∗(892)+π- decay rates is determined to be -0.308±0.062.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+. PHYSICAL REVIEW LETTERS, 120(26), 261801 [10.1103/PhysRevLett.120.261801].

Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+

Belloli, N.;Borsato, M.;Calvi, M.;Carniti, P.;Cassina, L.;Fazzini, D.;Gotti, C.;Grillo, L.;Martinelli, M.;Matteuzzi, C.;Petruzzo, M.;
2018

Abstract

The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay B0→KS0π+π- is studied using a pp 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 B0→KS0π+π- decay branching fraction and CP asymmetries of the flavor-specific amplitudes are measured. The CP asymmetry between the conjugate B0→K∗(892)-π+ and B0→K∗(892)+π- decay rates is determined to be -0.308±0.062.
Articolo in rivista - Articolo scientifico
Physics and Astronomy (all)
English
2018
120
26
261801
261801
none
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+. PHYSICAL REVIEW LETTERS, 120(26), 261801 [10.1103/PhysRevLett.120.261801].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/215495
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