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Particle production and symmetry restoration in collisions of vacuum bubbles

Journal Article · · Physical Review, D
 [1];  [1]
  1. NASA/Fermilab Astrophysics Center, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States)

In first-order inflation a phase transition is completed by the collisions of expanding true-vacuum bubbles. If bubble collisions produce large numbers of soft scalar particles carrying quantum numbers associated with a spontaneously broken symmetry, then symmetry restoration may occur in a {open_quotes}preheating{close_quotes} phase in a manner similar to symmetry restoration in the preheating phase of slow-roll inflation. Since bubble collisions lead to inhomogeneities, there is the possibility of inhomogeneous symmetry restoration where restoration occurs only in the regions of wall collisions. {copyright} {ital 1997} {ital The American Physical Society}

OSTI ID:
515987
Journal Information:
Physical Review, D, Journal Name: Physical Review, D Journal Issue: 6 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
Country of Publication:
United States
Language:
English

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