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.

Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+ / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 120:26(2018), p. 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+

Capriotti L.;Casse G.;Sarti A.;Sciubba A.;
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.
2018
Branching fraction B physics Flavor physics Hadron-Hadron Scattering
01 Pubblicazione su rivista::01a Articolo in rivista
Amplitude Analysis of the Decay B 0 → KS0 π+π- and First Observation of the CP Asymmetry in B 0 →k∗ (892)-π+ / Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., Alessio, F., Alexander, M., Alfonso Albero, A., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., An, L., Anderlini, L., Andreassi, G., Andreotti, M., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 120:26(2018), p. 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/11573/1310744
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