Quark Masses , B - parameters , and CP violation parameters ǫ and

نویسنده

  • Rajan Gupta
چکیده

After a brief introduction to lattice QCD, I summarize the results for the light quark masses and the bag parameters BK , B 1/2 6 , and B 3/2 8 . The implications of these results for the standard model estimates of CP violation parameters ǫ and ǫ/ǫ are also discussed.

برای دانلود رایگان 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

Spontaneous CP Violation and Natural Flavor Conservation In the SU ( 2 ) L × U ( 1 ) Y Gauge Theory with Two Higgs Doublets

The two principles of spontaneous CP violation and natural flavor conservation can be realized in the SU (2) L × U (1) Y model with two Higgs doublets. In particular, this model provides a consistent application to the CP violating parameters ǫ and ǫ ′ /ǫ in kaon decay and the neutron electric dipole moment. The masses of the exotic scalars are unconstrained in this model and probing these exot...

متن کامل

CP - violation in the left - right model and the kaon system

A left-right model with spontaneous CP breakdown, consistent with the particle physics phenomenology, is presented. Constraints on free parameters of the model: mass of the new right handed gauge boson M2 and ratio r of the two vacuum expectation values of the bidoublet, are found from the measurement of ǫ in the kaon system. For most of the parameter space, M2 is restricted to be below 10 TeV....

متن کامل

Cabibbo Mixing and the Search for CP Violation

We examine certain extensions of the standard model in which CP violation is spontaneous and the strong CP problem is resolved. In these models, the 3 × 3 quark mixing matrix is neither real nor unitary. However, to a precision of 0.1%, it is real and orthogonal. There are no readily observable CP -violating effects besides those in the neutral kaon system. Typeset using REVTEX 1 The Standard M...

متن کامل

Anatomy of Mixing-Induced CP Asymmetries in Left-Right-Symmetric Models with Spontaneous CP Violation

We investigate the pattern of CP violation in K–K̄0, B d–B̄ 0 d and B 0 s–B̄ 0 s mixing in a symmetrical SU(2)L×SU(2)R×U(1) model with spontaneous CP violation. We calculate the phases of the left and right quark mixing matrices beyond the small phase approximation and perform a careful analysis of all relevant restrictions on the model’s parameters from ∆mK , ∆mB , ǫ, ǫ/ǫ and the CP asymmetry in ...

متن کامل

Kaon Spontaneous CP Violation Reevaluated

The CP parameters ǫ and ǫ ′ ǫ are calculated in the aspon model of spontaneous CP violation, a model which solves the strong CP problem. A new range for the scale of spontaneous breaking of CP is found. It is shown that ǫ ′ ǫ is suppressed by ∼ xv/(κ sin θC) ∼ 5×10−3 relative to the Standard Model. If experiment finds that ǫ ′ ǫ is 10 or greater in magnitude, it will mean that the present appro...

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

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998