Exploring $$B\rightarrow \pi \pi , \pi K$$ B → π π , π K decays at the high-precision frontier
نویسندگان
چکیده
منابع مشابه
Search for direct CP violating charge asymmetries in K ± → π ± π + π − and K ± → π ± π 0 π 0 decays
A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes Ag = (g + − g)/(g + g) in K → πππ and K → πππ decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous K and K beams and a large data sample collected allowed a result of an unprecedented precision. The charge asymmetries were measured to ...
متن کاملProgress in K → ππ Decays
Recent work by J. Prades and myself on K ! is described. The rst part describes our method to connect in a systematic fashion the short-distance evolution with long-distance matrix-element calculations taking the scheme dependence of the short-distance evolution into account correctly. In the second part I show the results we obtain for the I = 1=2 rule in the chiral limit.
متن کاملMeasurements of branching fractions and CP - violating asymmetries in B 0 → π + π − , K + π − , K + K − decays
Recent measurements of the CP -violating asymmetry parameter sin2β by the BABAR [1] and BELLE [2] collaborations established CP violation in the B system. These measurements, as well as updated preliminary results [3, 4], are consistent with the Standard Model expectation based on measurements and theoretical estimates of the elements of the Cabibbo-Kobayashi-Maskawa [5] (CKM) quark-mixing matr...
متن کاملTime - dependent analysis of B 0 → K 0 S π − π þ γ decays and studies of the K þ π − π þ system in B þ → K þ π − π þ γ decays
P. del Amo Sanchez, J. P. Lees, V. Poireau, V. Tisserand, E. Grauges, A. Palano, G. Eigen, B. Stugu, D. N. Brown, L. T. Kerth, Yu. G. Kolomensky, M. J. Lee, G. Lynch, H. Koch, T. Schroeder, C. Hearty, T. S. Mattison, J. A. McKenna, R. Y. So, A. Khan, V. E. Blinov, A. R. Buzykaev, V. P. Druzhinin, V. B. Golubev, E. A. Kravchenko, A. P. Onuchin, S. I. Serednyakov, Yu. I. Skovpen, E. P. Solodov, K...
متن کاملCP violating phase γ and the partial widths asymmetry in B − → π + π − K − and B − → K + K − K − decays
Motivated by recent Belle measurement of the branching ratios B → ππK and B → KKK and B → χc0K, we investigate the CP violating asymmetry in the partial widths for the decays B → ππK and B → KKK, which results from the interference of the nonresonant decay amplitude with the resonant amplitude B → χc0K → ππK and B → χc0K → KKK. By taking γ ≃ 58 we predict that the partial widths asymmetry is re...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2018
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s10052-018-6397-5