Limits on CP Violation from Electric Dipole Moments

نویسنده

  • Michael V. Romalis
چکیده

Searches for a permanent electric dipole moment (EDM) provide a unique constraint on violation of CP symmetry beyond the Standard Model. Recent experiments improved the limits on EDMs of Hg and the electron. Combined with the limit on the neutron EDM and recent advances in theoretical interpretation, they set very tight constraints on CP violation in Supersymmetry. Many new experimental ideas are currently being explored, promising to improve the EDM limits by several orders of magnitude.

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-odd interaction of axion with matter

In the world with axion the precise measurement of gravitational force and check of the equivalence principle at small distances, λ ∼ 1cm and less, could provide an additional test of CP symmetry. Using the chiral approach, we connect the strength of CP-odd axion-nucleon vertex with CP-odd pion-nucleon coupling for color electric dipole moments of quarks as a low energy source of CP violation. ...

متن کامل

Higgs-Mediated Electric Dipole Moments in the MSSM: An Application to Baryogenesis and Higgs Searches

We perform a comprehensive study of the dominant twoand higher-loop contributions to the 205Tl, neutron and muon electric dipole moments induced by Higgs bosons, third generation quarks and squarks, charginos and gluinos in the Minimal Supersymmetric Standard Model (MSSM). We find that strong correlations exist among the contributing CP-violating operators, for large stop, gluino and chargino p...

متن کامل

Searches for Permanent Electric Dipole Moments - Some Recent Developments∗

Searches for permanent electric dipole moments (EDMs) of fundamental particles render the possibility to discover New Physics beyond present Standard Theory. New ideas for experiments have come up recently which may allow to lower present limits substantially or even find unambiguous effects. Such are predicted by a variety of speculative models. The identification of potential sources for CP a...

متن کامل

Electric dipole moments from spontaneous CP violation in SU(3)-flavoured SUSY

The SUSY flavour problem is deeply related to the origin of flavour and hence to the origin of the SM Yukawa couplings themselves. Since all CP-violation in the SM is restricted to the flavour sector, it is possible that the SUSY CP problem is related to the origin of flavour as well. In this work, we present three variations of an SU(3) flavour model with spontaneous CP violation. Such models ...

متن کامل

Dyons as a source of CP and time invariance violation: electric dipole moments and K-meson decays

We consider a mechanism by which dyons (electrically charged magnetic monopoles) can produce both a T and P -odd (i.e. time reversal invariance and parity violating) mixed polarizability β [defined by ∆E = −βE ·B, where ∆E is the energy change when electric (E) and magnetic (B) fields are applied to a system] and a T and P -odd interaction between two particles: ψ1γ5ψ1ψ2ψ2, where the ψi are ele...

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 2002