8 Цитирования (Scopus)


A search for charge-parity (CP) violation in Cabibbo-suppressed Ds+→KS0π+, D+→KS0K+, and D+→φπ+ decays is reported using proton-proton collision data, corresponding to an integrated luminosity of 3.8 fb-1, collected at a center-of-mass energy of 13 TeV with the LHCb detector. High-yield samples of kinematically and topologically similar Cabibbo-favored D(s)+ decays are analyzed to subtract nuisance asymmetries due to production and detection effects, including those induced by CP violation in the neutral kaon system. The results areACP(Ds+→KS0π+)=(1.3±1.9±0.5)×10-3,ACP(D+→KS0K+)=(-0.09±0.65±0.48)×10-3,ACP(D+→φπ+)=(0.05±0.42±0.29)×10-3,where the first uncertainties are statistical and the second systematic. They are the most precise measurements of these quantities to date, and are consistent with CP symmetry. A combination with previous LHCb measurements, based on data collected at 7 and 8 TeV, is also reported.

Язык оригиналаанглийский
Номер статьи191803
Страницы (с-по)191803
Число страниц11
ЖурналPhysical Review Letters
Номер выпуска19
СостояниеОпубликовано - 17 мая 2019


Подробные сведения о темах исследования «Search for CP Violation in Ds+ → K0Sπ+, D+ → K0SK+, and D+ → ϕπ+ Decays». Вместе они формируют уникальный семантический отпечаток (fingerprint).