Survivability of cosmological quark nuggets in the chromoelectric flux-tube fission model of baryon evaporation

Journal Article · Mon Nov 15 00:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.48.4630· OSTI ID:6050895

Bhattacharjee, P ^[1]; Alam, J ^[2]; Sinha, B ^[3]; Raha, S ^[4]

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1. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta-700 064 (India) Indian Institute of Astrophysics, Bangalore-560 034 (India)
2. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta-700 064 (India)
3. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Calcutta-700 064 (India) Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Calcutta-700 064 (India)
4. Bose Institute, 93/1 A.P.C. Road, Calcutta-700 009 (India)

The question of the survivability of quark nuggets against the process of baryon evaporation from their surfaces is studied within the context of a dynamical model, namely, the chromoelectric flux-tube fission model of baryon formation and evaporation. Depending on the temperature at which nuggests are formed in the early Universe and the value of the bag constant [ital B], our conservative estimates (we overestimate the baryon evaporation rate) show that quark nuggets with an initial baryon number [similar to]10[sup 44] or more can survive the evaporation process and be present in the Universe today.

• OSTI ID: 6050895
• Journal Information: Physical Review, D (Particles Fields); (United States), Vol. 48:10; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
EVAPORATION MODEL
COSMOLOGICAL MODELS
QUARK MATTER
FISSION
TEMPERATURE DEPENDENCE
ELEMENTARY PARTICLES
FERMIONS
HADRONS
MATHEMATICAL MODELS
MATTER
NUCLEAR MODELS
NUCLEAR REACTIONS
662440* - Properties of Other Particles Including Hypothetical Particles- (1992-)