منابع مشابه
Can Hidden Gauginos Form Condensates?
Supersymmetry breaking may be linked to the formation of gaugino condensates in a hidden sector. In this work, the process of formation of the condensate is examined in a cosmological context, using an effective field theory of the gaugino bilinear which provides a reasonable interpolation between the highand low-temperature phases. The implementation of anomaly requirements generates a large p...
متن کاملEr / 40682 - 59 1 - 19 - 94 Can Disordered Chiral Condensates Form ? a Dynamical Perspective
We address the issue of whether a region of disordered chiral condensate (DCC), in which the chiral condensate has components along the pion directions, can form. We consider a system going through the chiral phase transition either via a quench, or via relaxation of the high temperature phase to the low temperature one within a given time scale (of order ∼ 1fm/c). We use a density matrix based...
متن کاملNonlocal Condensates and Pion Form Factor *
〈π(P )|Jμ(0)|π (P )〉 = (P + P ′)μFπ(Q ) , where Jμ is the electromagnetic current and q is the photon momentum q = (P −P ) = −Q < 0 in the spacelike region. For asymptotically large momenta, one can apply the factorization theorem so that the FF will be represented via the inverse moment of the leading-twist pion distribution amplitude (DA). The precise value of Q at which this perturbative ter...
متن کاملHidden gauginos of an unbroken U(1): Cosmological constraints and phenomenological prospects
We study supersymmetric scenarios where the dark matter is the gaugino of an unbroken hidden U(1) which interacts with the visible world only via a small kinetic mixing with the hypercharge. Strong constraints on the parameter space can be derived from avoiding overclosure of the Universe and from requiring successful Big Bang Nucleosynthesis and structure formation. We find that for typical va...
متن کاملPhenomenology of Light Gauginos
I advocate the virtues of a very economical version of the minimal supersymmetric standard model which avoids cosmological problems often encountered in dynamical SUSY-breaking and solves the SUSY-CP problem. Imposing mZ = 91 GeV and mt ∼ 175 GeV implies that scalar masses are generally 100 − 200 GeV. The gluino and photino are massless at tree level. At 1-loop, the gluino mass is predicted to ...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)00873-j