The standard model effective potential at two loops
نویسندگان
چکیده
منابع مشابه
The Standard Model Effective Potential at Two Loops
We calculate the standard model effective potential to two loops using minimal subtraction, and use the result to deduce the two-loop beta-functions for the scalar m and quartic self-interaction. * Current address: Instituut Lorentz for Theoretical Physics, Niels Bohrweg 2, NL-2300 RA Leiden, The Netherlands ** Until 28th May 1992. *** Permanent address.
متن کاملTwo-loop effective potential for the minimal supersymmetric standard model
I compute the complete two-loop effective potential for the minimal supersymmetric standard model in the Landau gauge. This enables an accurate determination of the minimization conditions for the vacuum expectation values of the Higgs fields. Checks on the result follow from supersymmetric limits and from renormalization-scale invariance. The renormalization group equations for the field-indep...
متن کاملThe Wznw Model at Two Loops
We study perturbatively the (conformal) WZNW model. At one loop we compute one-particle irreducible twoand three-point current correlation functions, both in the conventional version and in the classically equivalent, chiral, nonlocal, induced version of the model. At two loops we compute the two-point function and find that it vanishes (modulo infrared-induced logarithms). We use dimensional r...
متن کاملConsistent use of the standard model effective potential.
The stability of the standard model is determined by the true minimum of the effective Higgs potential. We show that the potential at its minimum when computed by the traditional method is strongly dependent on the gauge parameter. It moreover depends on the scale where the potential is calculated. We provide a consistent method for determining absolute stability independent of both gauge and c...
متن کاملThe quark beam function at two loops
In differential measurements at a hadron collider, collinear initial-state radiation is described by process-independent beam functions. They are the field-theoretic analog of initial-state parton showers. Depending on the measured observable they are differential in the virtuality and/or transverse momentum of the colliding partons in addition to the usual longitudinal momentum fraction. Pertu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B
سال: 1997
ISSN: 0550-3213
DOI: 10.1016/s0550-3213(97)00532-4