UV finite brane decay | Zendy

Joanna L. Karczmarek | Zendy; Andrew Strominger | Zendy; Hong Liu | Zendy; Juan Maldacena | Zendy

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UV finite brane decay

Author(s) -

Joanna L. Karczmarek,

Andrew Strominger,

Hong Liu,

Juan Maldacena

Publication year - 2003

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2003/11/042

Subject(s) - physics , dilaton , tachyon , string (physics) , non critical string theory , string field theory , tachyon condensation , annulus (botany) , string cosmology , brane , string theory , d brane , mathematical physics , theoretical physics , quantum electrodynamics , relationship between string theory and quantum field theory , quantum mechanics , quantum gravity , quantum , botany , biology

The decay of an unstable D-brane via closed string emission and open stringpair production is considered in subcritical string theory with a spacelikelinear dilaton. The decay rate is given by the imaginary part of the annulus,which has ambiguities corresponding to the choices of incoming closed and openstring vacua. An exact expression for the full annulus diagram is computed witha natural choice of incoming vacua. It is found that the ultravioletdivergences present in critical string theory in both of these processes areabsent for any nonzero spacelike dilaton. Implications for the vexing issue ofthe tachyon dust are discussed.Comment: 21 pages, 3 figures, minor changes, changed to JHEP styl

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