Coupling Constant Dependence of the Kaluza-Klein Spectrum in Five-Dimensional SQCD on S1 | Zendy

Yoshiyuki Ohtaké | Zendy; Y. Wakabayashi | Zendy

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Coupling Constant Dependence of the Kaluza-Klein Spectrum in Five-Dimensional SQCD on S1

Author(s) -

Yoshiyuki Ohtaké,

Y. Wakabayashi

Publication year - 2006

Publication title -

progress of theoretical physics

Language(s) - English

Resource type - Journals

eISSN - 1347-4081

pISSN - 0033-068X

DOI - 10.1143/ptp.115.611

Subject(s) - physics , coupling constant , gauge theory , mathematical physics , massless particle , gauge group , mass gap , supersymmetric gauge theory , moduli space , moduli , brane , kaluza–klein theory , quantum electrodynamics , coupling (piping) , gauge (firearms) , quantum mechanics , particle physics , geometry , mechanical engineering , mathematics , archaeology , engineering , history

We investigate the Kaluza--Klein (KK) spectrum of N=1 supersymmetric gaugetheory compactified on a circle. We concentrate on a model with gauge groupSU(2) and four massless matter fields in the fundamental representation. Wederive the exact mass formula of KK modes by using Seiberg--Witten theory. Fromthe mass formula and the D3-brane probe realization, we determine the spectrumof KK modes of matter fields and gauge fields. As a result, we find that thelightest KK state of gauge fields is stable for all the vacuum moduli space,while the lightest KK state of matter fields decays easier than other KK statesin a region of the moduli space. The region becomes small as we decrease thefive-dimensional gauge coupling constant g_5, and vanishes as we take the limitg_5->0. This result continuously connects the known KK spectrum in the weakcoupling limit and that in the strong coupling limit.Comment: 14 pages, 8 figure

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