منابع مشابه
Q-balls in the Mssm
A Q-ball is a stable, charge Q soliton in a scalar field theory with a spontaneously broken global U(1) symmetry . The Q-ball solution arises provided the scalar potential V (φ) is such that V (φ)/|φ|2 has a minimum at non-zero φ. In the MSSM such solitons are necessarily part of the spectrum of the theory, as was first pointed out by Kusenko . This is due to the form of the MSSM scalar potenti...
متن کاملQ-balls in the MSSM
Non-topological solitons have been studied in a variety of models [1]. One particular type of such solitons, Q-balls [1,2], are present in the spectrum of a theory, whenever it satisfies the conditions outlined below. This class of theories includes the MSSM and other supersymmetric generalizations of the Standard Model. Surprisingly, the rich phenomenology associated with the solitonic sector ...
متن کاملQ-Balls and Baryogenesis in the MSSM
We show that Q-balls naturally exist in the Minimal Supersymmetric Standard Model (MSSM) with soft SUSY breaking terms of the minimal N=1 SUGRA type. These are associated with the Fand D-flat directions of the scalar potential once radiative corrections are taken into account. We consider two distinct cases, corresponding to the ”HuL” (slepton) direction with L-balls and the ”ucdcdc” and ”ucucd...
متن کاملExcited Q-Balls in the MSSM with gravity mediated supersymmetry breaking
Excited Q-balls are studied by numerical simulations in the Minimal Supersymmetric Standard Model with supersymmetry broken by a gravity mediated mechanism. It is found that there is a suppression factor of O(10−2) in the rate at which a Q-ball can emit their excess energy compared to the rate set by the dynamical scale of the field, m. Furthermore, it is noted that a Q-ball can withstand a lar...
متن کاملQ-balls in Underground Experiments
In this paper we present some features of Q-balls and we discuss their interactions with matter, and their energy losses in the Earth, for a large range of velocities. These calculations are used to compute the fractional geometrical acceptance of the MACRO detector. Furthermore a systematic analysis of the energy losses of Q-balls in three types of detectors is investigated. More specifically ...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1998
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(97)00664-6