ar X iv : h ep - p h / 94 10 23 6 v 1 6 O ct 1 99 4 CP VIOLATION

نویسنده

  • Michael Gronau
چکیده

We review the present status of the Standard Model of CP violation, which is based on a complex phase in the Cabibbo-Kobayashi-Maskawa (CKM) matrix. So far CP violation has been observed only in K −K mixing, consistent with a sizable phase. The implications of future CP nonconserving measurements in K and B decays are discussed within the model. Direct CP violation in K → 2π may be observed in the near future, however this would not be a powerful test of the model. B decays provide a wide variety of CP asymmetry measurements, which can serve as precise tests of the Standard Model in cases where the asymmetry is cleanly related to phases of CKMmatrix elements. Some of the most promising cases are discussed.

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

ar X iv : h ep - p h / 94 09 23 4 v 1 6 S ep 1 99 4 OITS - 551 CP VIOLATION IN A Multi - Higgs Doublet Model ∗

Abstract We study CP violation in a multi-Higgs doublet model based on a S3 × Z3 horizontal symmetry. We consider two mechanisms for CP violation in this model: a) CP violation due to complex Yukawa couplings; and b) CP violation due to scalar-pseudoscalar mixings. We find that the predictions for ǫ/ǫ, CP violation in B decays and the electric dipole moments of neutron and electron are differen...

متن کامل

ar X iv : h ep - p h / 94 04 25 6 v 1 1 2 A pr 1 99 4 1 SUMMARY TALK AT THE 3 rd KEK TOPICAL CONFERENCE ON CP VIOLATION

A summary of the contributions to this topical conference is presented. The topics discussed ranged from detailing what we know about CP violation, to what we hope to learn in the future, to still unsolved mysteries in the subject.

متن کامل

ar X iv : h ep - p h / 94 09 22 4 v 1 5 S ep 1 99 4 CP violation in the heavy neutrinos production process e + e − → N 1 N 2 ∗

The problem of CP conservation and CP violation for two heavy neutri-nos production in e + e − interaction is considered. Very convenient way of parametrization of the neutrino mass matrix, from which necessary and sufficient condition for CP conservation easily follows, is presented. Contrary to the Kobayashi-Maskawa mechanism, the effects of CP violation in the lepton sector with Majorana neu...

متن کامل

ar X iv : h ep - t h / 94 10 02 3 v 1 5 O ct 1 99 4 KOBE - TH - 94 - 06 Kanazawa - 94 - 20 CP in Orbifold Models

We study CP in orbifold models. It is found that the orbifolds always have some automorphisms as CP symmetry. The symmetries are restricted nontrivially due to geometrical structure of the orbifolds. Explicit analysis on Yukawa couplings also shows that CP is not violated in orbifold models.

متن کامل

ar X iv : h ep - p h / 98 12 39 9 v 1 1 6 D ec 1 99 8 1 The Tau Lepton : Particle Physics in a Nutshell

τ decays 5. Beyond the Standard Model 5.1 CP violation in hadronic τ decays 5.2 " Forbidden " decays.

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 1994