Papers from the RTN Workshop on the Quantum Structure of Spacetime and the Geometric Nature of Fundamental Interactions, Copenhagen, 15-20 September 2003Classical and quantum gravity (Print). 21(10):S1433-S1439
Dipartimento di Scienze Fisiche, Univ. di Napoli ' Federico II'and INFN, Sezione di Napoli Complesso Univ. Monte S Angelo, ed G, Via Cintia, 80126 Napoli, Italy
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Notes:
Physics of elementary particles and fields
Accession Number:
edscal.15782974
Database:
PASCAL Archive
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We discuss the role played by the divergences appearing in the interaction between a fractional D3 brane dressed with an SU(N) gauge field and a stack of N fractional D3 branes on the orbifolds C2/Z2 and C3/(Z2 x Z2). In particular we show that the logarithmic divergences in the closed string channel, interpreted as due to twisted massless tadpoles, are mapped, under open/closed string duality, in the logarithmic ones in the open string channel, due to the massless states circulating in the annulus diagram and corresponding to the one-loop divergences that one finds in the gauge theory living in the worldvolume of the brane. This result provides quantitative evidence of why the chiral and scale anomalies of the supersymmetric and non-conformal gauge theories supported by the worldvolume of the branes can be inferred from supergravity calculations.