Recent Charm Physics Results from BABAR

被引:0
|
作者
Neri, Nicola [1 ]
机构
[1] Ist Nazl Fis Nucl, Sez Milano, I-20133 Milan, Italy
关键词
charm meson; CP violation; flavor mixing;
D O I
10.1016/j.nuclphysbps.2013.06.003
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
I present recent results from the BABAR experiment based on a data sample corresponding to an integrated luminosity of about 480 fb(-1) collected at the PEP-II asymmetric energy e(+)e(-) collider. In particular, I will discuss the search for CP violation in D+ -> (KsK+)-K-0 and D-s(+) -> (KsK+)-K-0, K-s(0)pi(+) decays, and in three-body D+ -> K+K-pi(+) decays. I will report on the measurement of the mixing parameter y(CP) and of the CP-violation parameter Delta Y, in the lifetime ratio analysis of the transitions to the CP-even eigenstates D-0 -> K+K-, pi(+)pi(-), relative to the transitions to the CP-mixed state D-0 -> K-pi(+), where we obtain y(CP) = [0.72 +/- 0.18(stat) +/- 0.12(syst)]% and Delta Y = [0.09 +/- 0.26(stat) +/- 0.06(syst)]%. Finally, I will present a precision measurement of the D*(2010)(+) total width, Gamma = 83.5 +/- 1.7(stat) +/- 1.2(syst) keV, and of the D*(2010)(+) - D-0 mass difference, Delta m = 145426.5 +/- 0.4(stat) +/- 2.6(syst) keV.
引用
收藏
页码:12 / 17
页数:6
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