The charmless three-body decays B0(s) → K0S h+ h′− (where h(′) = π, K) are analysed using a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 3 fb^−1. The branching fractions are measured relative to that of the B0 → K0S π+ π− decay, and are determined to be: B(B0 → K0S K± π∓)/B(B0 → K0S K+ π−) = 0.123 ± 0.009(stat) ± 0.015(syst), B(B0 → K0S K+ K−)/B(B0 → K0S π+ π−) = 0.549 ± 0.018(stat) ± 0.033(syst), B(B0s → K0S π+ π−)/B(B0 → K0S π+ π−) = 0.191 ± 0.027(stat) ± 0.031(syst) ± 0.011(f_s/f_d), B(B0s → K0S K± π∓)/B(B0 → K0S π+ π−) = 1.70 ± 0.07(stat) ± 0.11(syst) ± 0.10(f_s/f_d), B(B0s → K0S K+ K−)/B(B0 → K0S π+ π−) ∈ [0.008−0.051] at 90% confidence level, where f_s/f_d represents the ratio of hadronisation fractions of the B0s and B0 mesons.

Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Updated Branching Fraction Measurements of B0(s) → K0S h+ h′− Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2017(11), 0-41 [10.1007/JHEP11(2017)027].

Updated Branching Fraction Measurements of B0(s) → K0S h+ h′− Decays

Betti, F.;Capriotti, L.;Carbone, A.;Ferrari, F.;Galli, D.;Marconi, U.;Mussini, M.;Patrignani, C.;Perazzini, S.;Vagnoni, V.;Zucchelli, S.
2017

Abstract

The charmless three-body decays B0(s) → K0S h+ h′− (where h(′) = π, K) are analysed using a sample of pp collision data recorded by the LHCb experiment, corresponding to an integrated luminosity of 3 fb^−1. The branching fractions are measured relative to that of the B0 → K0S π+ π− decay, and are determined to be: B(B0 → K0S K± π∓)/B(B0 → K0S K+ π−) = 0.123 ± 0.009(stat) ± 0.015(syst), B(B0 → K0S K+ K−)/B(B0 → K0S π+ π−) = 0.549 ± 0.018(stat) ± 0.033(syst), B(B0s → K0S π+ π−)/B(B0 → K0S π+ π−) = 0.191 ± 0.027(stat) ± 0.031(syst) ± 0.011(f_s/f_d), B(B0s → K0S K± π∓)/B(B0 → K0S π+ π−) = 1.70 ± 0.07(stat) ± 0.11(syst) ± 0.10(f_s/f_d), B(B0s → K0S K+ K−)/B(B0 → K0S π+ π−) ∈ [0.008−0.051] at 90% confidence level, where f_s/f_d represents the ratio of hadronisation fractions of the B0s and B0 mesons.
2017
Aaij, R., Adeva, B., Adinolfi, M., Ajaltouni, Z., Akar, S., Albrecht, J., et al. (2017). Updated Branching Fraction Measurements of B0(s) → K0S h+ h′− Decays. JOURNAL OF HIGH ENERGY PHYSICS, 2017(11), 0-41 [10.1007/JHEP11(2017)027].
Aaij, R.; Adeva, B.; Adinolfi, M.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alv...espandi
File in questo prodotto:
File Dimensione Formato  
2017-AR-56-Updated_Br_Frac_Meas_of_B0s_to_K0S_hp_hm_Decays-JHEP.pdf

accesso aperto

Tipo: Versione (PDF) editoriale
Licenza: Licenza per Accesso Aperto. Creative Commons Attribuzione (CCBY)
Dimensione 2.26 MB
Formato Adobe PDF
2.26 MB 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/11585/614096
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 17
  • ???jsp.display-item.citation.isi??? 8
social impact