Determination of Strong-Phase Parameters in D -> K-S,L(0)pi(+)pi(-)
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Dosyalar
Tarih
2020-06-15
Yazarlar
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Yayıncı
Amer Physical Soc.
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
We report the most precise measurements to date of the strong-phase parameters between D-0 and (D) over bar (0) decays to K-S,L(0)pi(+)pi(-) 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 gamma/phi(3) with B decays. Using our results, the decay model sensitivity to the gamma/phi(3 )measurement is expected to be between 0.7 degrees and 1.2 degrees, 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 gamma/phi(3) 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.
Açıklama
8 pages
Anahtar Kelimeler
Decays, Cp Violation
Kaynak
Physical Review Letters
WoS Q Değeri
Q1
