We measure the branching fractions for seven Ds+ two-body decays to pseudo-scalar mesons, by analyzing data collected at s = 4.178 ∼ 4.226 GeV with the BESIII detector at the BEPCII collider. The branching fractions are determined to beB(Ds+→K+η')=(2.68±0.17±0.17±0.08)×10−3,B(Ds+→η'π+)=(37.8±0.4±2.1±1.2)×10−3,B(Ds+→K+η)=(1.62±0.10±0.03±0.05)×10−3,B(Ds+→ηπ+)=(17.41±0.18±0.27±0.54)×10−3,B(Ds+→K+KS0)=(15.02±0.10±0.27±0.47)×10−3,B(Ds+→KS0π+)=(1.109±0.034±0.023±0.035)×10−3,B(Ds+→K+π0)=(0.748±0.049±0.018±0.035)×10−3, where the first uncertainties are statistical, the second are systematic, and the third are from external input branching fraction of the normalization mode Ds+ → K+K−π+. Precision of our measurements is significantly improved compared with that of the current world average values.

Precise measurements of branching fractions for Ds+ meson decays to two pseudoscalar mesons

Bettoni D.;Cibinetto G.;Farinelli R.;Garzia I.;Mezzadri G.;Savrie M.;
2020

Abstract

We measure the branching fractions for seven Ds+ two-body decays to pseudo-scalar mesons, by analyzing data collected at s = 4.178 ∼ 4.226 GeV with the BESIII detector at the BEPCII collider. The branching fractions are determined to beB(Ds+→K+η')=(2.68±0.17±0.17±0.08)×10−3,B(Ds+→η'π+)=(37.8±0.4±2.1±1.2)×10−3,B(Ds+→K+η)=(1.62±0.10±0.03±0.05)×10−3,B(Ds+→ηπ+)=(17.41±0.18±0.27±0.54)×10−3,B(Ds+→K+KS0)=(15.02±0.10±0.27±0.47)×10−3,B(Ds+→KS0π+)=(1.109±0.034±0.023±0.035)×10−3,B(Ds+→K+π0)=(0.748±0.049±0.018±0.035)×10−3, where the first uncertainties are statistical, the second are systematic, and the third are from external input branching fraction of the normalization mode Ds+ → K+K−π+. Precision of our measurements is significantly improved compared with that of the current world average values.
2020
Ablikim, M.; Achasov, M. N.; Adlarson, P.; Ahmed, S.; Albrecht, M.; Amoroso, A.; An, Q.; Anita, ; Bai, Y.; Bakina, O.; Baldini Ferroli, R.; Balossino,...espandi
File in questo prodotto:
File Dimensione Formato  
JHEP08(2020)146.pdf

accesso aperto

Tipologia: Full text (versione editoriale)
Licenza: Creative commons
Dimensione 630.47 kB
Formato Adobe PDF
630.47 kB Adobe PDF Visualizza/Apri

I documenti in SFERA 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/11392/2495883
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 4
  • ???jsp.display-item.citation.isi??? 3
social impact