The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.

Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Amplitude analysis of Bs0 → KS0 K ± π ∓ decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(6) [10.1007/JHEP06(2019)114].

Amplitude analysis of Bs0 → KS0 K ± π ∓ decays

Belloli N.;Borsato M.;Calvi M.;Carniti P.;Fazzini D.;Gotti C.;Martinelli M.;Petruzzo M.;
2019

Abstract

The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.
Articolo in rivista - Articolo scientifico
B physics; Branching fraction; CP violation; Flavor physics; Hadron-Hadron scattering (experiments);
English
2019
2019
6
114
open
Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Aidala, C., Ajaltouni, Z., et al. (2019). Amplitude analysis of Bs0 → KS0 K ± π ∓ decays. JOURNAL OF HIGH ENERGY PHYSICS, 2019(6) [10.1007/JHEP06(2019)114].
File in questo prodotto:
File Dimensione Formato  
10281-242935.pdf

accesso aperto

Tipologia di allegato: Publisher’s Version (Version of Record, VoR)
Dimensione 790.46 kB
Formato Adobe PDF
790.46 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/242935
Citazioni
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 15
Social impact