TY - JOUR
T1 - Determination of Strong-Phase Parameters in D→K0S,Lπ+π−
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M.N.
AU - Adlarson, P.
AU - Ahmed, S.
AU - Albrecht, M.
AU - Alekseev, M.
AU - Ambrose, D.
AU - Kalantar-Nayestanaki, Nasser
AU - Kappert, Rosa
AU - Kavatsyuk, Myroslav
AU - Messchendorp, Johan
AU - Rodin, Viktor
PY - 2020
Y1 - 2020
N2 - We report the most precise measurements to date of the strong-phase parameters between D0 and ¯D0 decays to K0S,Lπ+π− using a sample of 2.93 fb−1 of e+e− annihilation data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. Our results provide the key inputs for a binned model-independent determination of the Cabibbo-Kobayashi-Maskawa angle γ/ϕ3 with B decays. Using our results, the decay model sensitivity to the γ/ϕ3 measurement is expected to be between 0.7° and 1.2°, approximately a factor of three smaller than that achievable with previous measurements, based on the studies of the simulated data. The improved precision of this work ensures that measurements of γ/ϕ3 will not be limited by knowledge of strong phases for the next decade. Furthermore, our results provide critical input for other flavor-physics investigations, including charm mixing, other measurements of CP violation, and the measurement of strong-phase parameters for other D-decay modes.
AB - We report the most precise measurements to date of the strong-phase parameters between D0 and ¯D0 decays to K0S,Lπ+π− using a sample of 2.93 fb−1 of e+e− annihilation data collected at a center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. Our results provide the key inputs for a binned model-independent determination of the Cabibbo-Kobayashi-Maskawa angle γ/ϕ3 with B decays. Using our results, the decay model sensitivity to the γ/ϕ3 measurement is expected to be between 0.7° and 1.2°, approximately a factor of three smaller than that achievable with previous measurements, based on the studies of the simulated data. The improved precision of this work ensures that measurements of γ/ϕ3 will not be limited by knowledge of strong phases for the next decade. Furthermore, our results provide critical input for other flavor-physics investigations, including charm mixing, other measurements of CP violation, and the measurement of strong-phase parameters for other D-decay modes.
U2 - 10.1103/PhysRevLett.124.241802
DO - 10.1103/PhysRevLett.124.241802
M3 - Article
SN - 0031-9007
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
M1 - 241802
ER -