The fi rst untagged decay-time-integrated amplitude analysis of B 0 s ! K 0 S K decays is performed using a sample corresponding to 3: 0 fb 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 9892) 0;+, K 2 91430) 0;+ and K 0 91430) 0;+, and their charge conjugates. Measurements of the branching fractions of the decay modes B 0 s ! K 9892) K and B 0 s ! K 9892) 0 K 0 are in agreement with, and more precise than, previous results. The decays B 0 s ! K 0 91430) K and B 0 s ! K 0 91430) 0 K 0 are observed for the fi rst time, each with signi fi cance over 10 standard deviations.

Aaij, R., Beteta, C.a., Adeva, B., Adinolfi, M., Aidala, C.a., Ajaltouni, Z., et al. (2019). Amplitude analysis of B-s(0) -> K-S(0) K-+/-pi(-/+) decays. JOURNAL OF HIGH ENERGY PHYSICS(6) [10.1007/JHEP06(2019)114].

Amplitude analysis of B-s(0) -> K-S(0) K-+/-pi(-/+) decays

Archilli, F.;Santovetti, E.
Membro del Collaboration Group
;
2019-01-01

Abstract

The fi rst untagged decay-time-integrated amplitude analysis of B 0 s ! K 0 S K decays is performed using a sample corresponding to 3: 0 fb 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 9892) 0;+, K 2 91430) 0;+ and K 0 91430) 0;+, and their charge conjugates. Measurements of the branching fractions of the decay modes B 0 s ! K 9892) K and B 0 s ! K 9892) 0 K 0 are in agreement with, and more precise than, previous results. The decays B 0 s ! K 0 91430) K and B 0 s ! K 0 91430) 0 K 0 are observed for the fi rst time, each with signi fi cance over 10 standard deviations.
2019
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
English
B physics; Branching fraction; CP violation; Flavor physics;; Hadron-Hadron scattering (experiments); CP-VIOLATION; B DECAYS; MODEL
Aaij, R., Beteta, C.a., Adeva, B., Adinolfi, M., Aidala, C.a., Ajaltouni, Z., et al. (2019). Amplitude analysis of B-s(0) -> K-S(0) K-+/-pi(-/+) decays. JOURNAL OF HIGH ENERGY PHYSICS(6) [10.1007/JHEP06(2019)114].
Aaij, R; Beteta, Ca; Adeva, B; Adinolfi, M; Aidala, Ca; Ajaltouni, Z; Akar, S; Albicocco, P; Albrecht, J; Alessio, F; Alexander, M; Albero, Aa; Alkhaz...espandi
Articolo su rivista
File in questo prodotto:
File Dimensione Formato  
Amplitude_analysis_of_B_s_0_K_S_0_Kp_decays.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Creative commons
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/2108/250616
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 20
  • ???jsp.display-item.citation.isi??? 15
social impact