CP violation in hadronic penguin modes

نویسنده

  • Eli Ben-Haim
چکیده

We present recent results from the BABAR experiment on CP violation in hadronic penguin modes. Included are results from the time-dependent amplitude analysis of B 0 → K 0 S π + π − and from updated measurements of the direct and mixing-induced CP violation in the B 0 decay modes ωK 0 S , η ′ K 0 , and π 0 K 0 S. The Dalitz plot analysis uses a sample of approximately 383 million BB pairs collected at the ϒ (4S) resonance by the BABAR detector at the PEP-II asymmetric energy B factory at SLAC National Laboratory. The other measurements use the full BABAR dataset, of approximately 467 million BB pairs.

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

Effects of the Space-like Penguin Diagrams on CP Asymmetries in Exclusive B Decays

The space-like penguin contributions were ignored on little ground in many previous studies of nonleptonic B transitions and CP violation. Taking the penguin-dominated channels B− u → K̄0π− and B− u → K0K− for example, we illustrate the non-negligible effects of the space-like penguin diagrams on CP asymmetries. Some qualitative remarks are given on the gluonic penguin picture and direct CP viol...

متن کامل

On Puzzles and Non-Puzzles in B → ππ, πK Decays

Recently, we have seen interesting progress in the exploration of CP violation in B0 d → π+π−: the measurements of mixing-induced CP violation by the BaBar and Belle collaborations are now in good agreement with each other, whereas the picture of direct CP violation is still unclear. Using the branching ratio and direct CP asymmetry of B0 d → π−K+, this situation can be clarified. We predict Ad...

متن کامل

CP violation with B 0 s → D̄ 0 φ decays

We note that it is possible to determine the weak phase γ from the time dependent measurements of the decays B0 s (t)(B̄ 0 s (t)) → D̄0φ without any hadronic uncertainties. These decays are described by the color suppressed tree diagrams and hence are free from the penguin pollutions. We further demonstrate that γ can also be extracted with no hadronic uncertainties from an angular analysis of co...

متن کامل

K(k)x: Decay Distributions, Branching Ratios and Cp Asymmetries

The semi-inclusive charmless hadronic decays B → K(K)X , where X is a hadronic recoil system containing no charmed and strange particles, are useful for studying direct CP violation and determining the weak phase γ . Direct CP violation can also be studied with exclusive or inclusive charmless hadronic B decays. Although theoretical uncertainties in inclusive decays may be small, it is experime...

متن کامل

Closing in on B-cp

Major new experimental efforts on detecting CP violation in B decays will very soon go on the air. Recent developments suggest that final state interaction phases in exclusive decays of B are unlikely to be small indicating the possibility of observable direct CP asymmetries in these channels. CLEO results on charmless hadronic modes suggest penguin amplitudes are rather big implying that the e...

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 2009