The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay anti-B0 → K0S π+ 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 anti-B0 → K0S π+ π− decay branching fraction and CP asymmetries of the flavor-specific amplitudes are measured. The CP asymmetry between the conjugate anti-B 0 → 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 anti-B0 → K0S π+ π− and First Observation of the CP Asymmetry in anti-B 0 → K∗(892)− π+. PHYSICAL REVIEW LETTERS, 120(26), 1-10 [10.1103/PhysRevLett.120.261801].

Amplitude Analysis of the Decay anti-B0 → K0S π+ π− and First Observation of the CP Asymmetry in anti-B 0 → K∗(892)− π+

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Marconi, U.;Patrignani, C.;Perazzini, S.;Vagnoni, V.;Zucchelli, S.
2018

Abstract

The time-integrated untagged Dalitz plot of the three-body hadronic charmless decay anti-B0 → K0S π+ 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 anti-B0 → K0S π+ π− decay branching fraction and CP asymmetries of the flavor-specific amplitudes are measured. The CP asymmetry between the conjugate anti-B 0 → K∗(892)− π+ and B0 → K∗(892)+ π− decay rates is determined to be −0.308 ± 0.062.
2018
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2018). Amplitude Analysis of the Decay anti-B0 → K0S π+ π− and First Observation of the CP Asymmetry in anti-B 0 → K∗(892)− π+. PHYSICAL REVIEW LETTERS, 120(26), 1-10 [10.1103/PhysRevLett.120.261801].
Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Alfonso Albero, A.; Ali, S.; Alkhazov, G.; Alvar...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/640683
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