On the scattering of magnon boundstates | Zendy

HengYu Chen | Zendy; Nick Dorey | Zendy; Keisuke Okamura | Zendy

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On the scattering of magnon boundstates

Author(s) -

HengYu Chen,

Nick Dorey,

Keisuke Okamura

Publication year - 2006

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 - 10.1088/1126-6708/2006/11/035

Subject(s) - magnon , semiclassical physics , physics , worldsheet , scattering , s matrix , matrix (chemical analysis) , string (physics) , quantum mechanics , mathematical physics , scattering amplitude , quantum electrodynamics , string field theory , ferromagnetism , materials science , composite material , quantum

We study the scattering of magnon boundstates in the spin-chain descriptionof planar N=4 SUSY Yang-Mills. Starting from the conjectured exact S-matrix formagnons in the SU(2) sector, we calculate the corresponding S-matrix forboundstates with an arbitrary number of constituent magnons. The resultingexpression has an interesting analytic structure with both simple and doublepoles. We also calculate the semiclassical S-matrix for the scattering of thecorresponding excitations on the string worldsheet known as Dyonic GiantMagnons. We find precise agreement with the magnon boundstate S-matrix in thelimit of large 't Hooft coupling.Comment: 14 page

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