A Search for CP(T) Violation in B Decays at OPAL

نویسنده

  • Robin Coxe
چکیده

CP violation in the B-meson system has generated considerable experimental and theoretical interest, as potentially large e ects are expected. Searches for CP(T) violation using the small sample of Z ! b b decays at the LEP collider at CERN provide \proofs of principle" for analysis techniques which will be employed by future B-Factory experiments. Indirect CP violation is possible in the B system provided the weak eigenstates B and B di er from the mass eigenstates B1 and B2:

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

CP Violation: The CKM Matrix and New Physics

(The world average given in eq. (3) includes the new results from Belle [3], ImλψK = 0.719 ± 0.074± 0.035, and Babar [4], ImλψK = 0.741 ± 0.067 ± 0.033, and previous results from Opal, Aleph and CDF.) In addition, CP asymmetries in many other modes (neutral B decays into final CP eigenstates and non-CP eigenstates and charged B decays) have been searched for. We describe the implications of the...

متن کامل

Cp Violation, Mixing and Rare Decays at the Tevatron Now and in Run Ii I Introduction

We review the status of current B mixing and CP violation measurements from the Fermilab Tevatron. With the existing data sample, the CDF collaboration has made competitive measurements of B 0 d mixing; set limits on B 0 s mixing; and has begun a direct search for CP violation in the B system through the decay B 0 =B 0 ! J==K 0 s. The prospects for future b measurements at the Tevatron, includi...

متن کامل

Search for direct CP violation in B → K π , ππ , KK , Quasi - Two - Body B decays and B → K ∗ γ with the BABAR detector at the PEP - II collider ∗

A sample of 23 million BB events collected with the BABAR detector at the PEP-II collider is used in a search for direct CP violation in charmless two-body B decays, quasi two-body B decays, and the radiative penguin decays B → K∗γ. No evidence for direct CP violation is found in the considered modes and 90% confidence level limits are reported. We also present a limit on the branching fraction...

متن کامل

Ckm03 Sin(2β): Status and Prospects

An overview of the observation of CP violation in the neutral B system, and the measurements of the CP-violating asymmetry sin2β with B → charmonium K 0 S ,L events, performed by the BABAR and Belle experiments at the SLAC and KEK B factories is given. In addition, the measurements of sin2β with several other modes are described, including B → φK 0 S , which, as the leading contribution is from...

متن کامل

0 v 3 1 4 A pr 1 99 8 CP violation in quasi - inclusive B → K ( ∗ ) X Decays

We consider the possibility of observing CP violation in quasi-inclusive decays of the type B does not contain strange quarks. We present estimates of rates and asymmetries for these decays in the Standard Model and comment on the experimental feasibility of observing CP violation in these decays at future B factories. We find the rate asymmetries can be quite sizeable. Observation of such asym...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1999