Level crossing for hot sphalerons

Ambjorn, J; Farakos, K; Hands, S; Koutsoumbas, G; Thorleifsson, G

dc.contributor.author	Ambjorn, J	en
dc.contributor.author	Farakos, K	en
dc.contributor.author	Hands, S	en
dc.contributor.author	Koutsoumbas, G	en
dc.contributor.author	Thorleifsson, G	en
dc.date.accessioned	2014-03-01T01:09:58Z
dc.date.available	2014-03-01T01:09:58Z
dc.date.issued	1994	en
dc.identifier.issn	0550-3213	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11266
dc.subject	Early Universe	en
dc.subject	Eigenvalues	en
dc.subject	High Temperature	en
dc.subject	Spectrum	en
dc.subject	chern simons	en
dc.subject.classification	Physics, Particles & Fields	en
dc.subject.other	SU(2) LATTICE VACUUM	en
dc.subject.other	STAGGERED FERMIONS	en
dc.subject.other	GAUGE-THEORY	en
dc.subject.other	TOPOLOGICAL SUSCEPTIBILITY	en
dc.subject.other	DIMENSIONAL REDUCTION	en
dc.subject.other	SYMMETRY-BREAKING	en
dc.subject.other	HIGH-TEMPERATURE	en
dc.subject.other	ANOMALIES	en
dc.subject.other	TRANSITIONS	en
dc.subject.other	MONOPOLES	en
dc.title	Level crossing for hot sphalerons	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/0550-3213(94)90172-4	en
heal.identifier.secondary	http://dx.doi.org/10.1016/0550-3213(94)90172-4	en
heal.language	English	en
heal.publicationDate	1994	en
heal.abstract	We study the spectrum of the Dirac hamiltonian in the presence of high-temperature sphaleron-like fluctuations of the electroweak gauge and Higgs fields, relevant for the conditions prevailing in the early universe. The fluctuations are created by numerical lattice simulations. It is shown that a change in Chem-Simons number by one unit is accompanied by eigenvalues crossing zero and a change of sip of the generalized chirality GAMMA5 = (-1)2T+1gamma5 which labels these modes. This provides further evidence that the sphaleron-like configurations observed in lattice simulations may be viewed as representing continuum configurations.	en
heal.publisher	ELSEVIER SCIENCE BV	en
heal.journalName	Nuclear Physics B	en
dc.identifier.doi	10.1016/0550-3213(94)90172-4	en
dc.identifier.isi	ISI:A1994PG73500003	en
dc.identifier.volume	425	en
dc.identifier.issue	1-2	en
dc.identifier.spage	39	en
dc.identifier.epage	66	en