Work

Interactions of non-Abelian global strings

Year: 2008

Type: article

Abstract: Non-Abelian global strings are expected to form during the chiral phase transition. They have orientational zero modes in the internal space, associated with the vector-like symmetry SU(N)L+R broken in the presence of strings. The interaction among two parallel non-Abelian global strings is derived for general relative orientational zero modes, giving a non-Abelian generalization of the Magnus force. It is shown that when the orientations of the strings are the same, the repulsive force reaches the maximum, whereas when the relative orientation becomes the maximum, no force exists between the strings. For the Abelian case we find a finite volume correction to the known result. The marginal instability of the previously known Abelian η′ strings is discussed.

Source: Physics Letters B

DOI: 10.1016/j.physletb.2008.11.049

Authors: Eiji Nakano, Muneto Nitta, Taeko Matsuura

Institutions: National Taiwan University, Keio University, European Centre for Theoretical Studies in Nuclear Physics and Related Areas

Language: English

Topic: Particle physics theoretical and experimental studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid:

Funder: National Taiwan University