W-Z-top-quark bags
- Department of Physics, State University of New York, Stony Brook, New York 11794 (United States)
- School of Physics, University of New South Wales, Sydney 2052 (Australia)
We discuss a new family of multiquanta-bound states in the standard model which exist due to the mutual Higgs-based attraction of the heaviest members of the standard model, namely, gauge quanta W, Z, and (anti)top quarks, t, t. We use a self-consistent mean-field approximation, up to a rather large particle number N. In this paper we do not focus on weakly bound, nonrelativistic bound states, but rather on 'bags' in which the Higgs vacuum expectation value is significantly modified or depleted. The minimal number N above which such states appear strongly depends on the ratio of the Higgs mass to the masses of W, Z, t, t: For a light Higgs mass, m{sub H{approx}}50 GeV, bound states start from N{approx}O(10), but for a ''realistic'' Higgs mass, m{sub H{approx}}100 GeV, one finds metastable/bound W, Z bags only for N{approx}O(1000). We also found that in the latter case pure top bags disappear for all N, although top quarks can still be well bound to the W bags. Anticipating the cosmological applications (discussed in the following Article [Phys. Rev. D 82, 073019]) of these bags as 'doorway states' for baryosynthesis, we also consider here the existence of such metastable bags at finite temperatures, when standard-model parameters such as Higgs, gauge, and top masses are significantly modified.
- OSTI ID:
- 21421359
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 7; Other Information: DOI: 10.1103/PhysRevD.82.073018; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
APPROXIMATIONS
BOUND STATE
EXPECTATION VALUE
GAUGE INVARIANCE
GEV RANGE 10-100
HIGGS BOSONS
HIGGS MODEL
INTERMEDIATE BOSONS
MASS
MEAN-FIELD THEORY
STANDARD MODEL
T QUARKS
Z NEUTRAL BOSONS
BOSONS
CALCULATION METHODS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
FIELD THEORIES
GEV RANGE
GRAND UNIFIED THEORY
INTERMEDIATE VECTOR BOSONS
INVARIANCE PRINCIPLES
MATHEMATICAL MODELS
PARTICLE MODELS
POSTULATED PARTICLES
QUANTUM FIELD THEORY
QUARKS
TOP PARTICLES
UNIFIED GAUGE MODELS