Stringy (holographic) Pomeron with extrinsic curvature

Stringy (holographic) Pomeron with extrinsic curvature

We model the soft Pomeron in QCD using a scalar Polyakov string with extrinsic curvature in the bottom-up approach of holographic QCD. The overall dipole-dipole scattering amplitude in the soft Pomeron kinematics is shown to be sensitive to the extrinsic curvature of the string for finite momentum t...

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Veröffentlicht in:Physical review. D 2015-10, Vol.92 (8), Article 085012
Hauptverfasser: Qian, Yachao, Zahed, Ismail
Format: Artikel
Sprache:eng
Schlagworte:
Cosmology
Curvature
Elastic scattering
Mathematical analysis
Pomerons
Scalars
Scattering amplitude
Strings
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Zusammenfassung:We model the soft Pomeron in QCD using a scalar Polyakov string with extrinsic curvature in the bottom-up approach of holographic QCD. The overall dipole-dipole scattering amplitude in the soft Pomeron kinematics is shown to be sensitive to the extrinsic curvature of the string for finite momentum transfer. The characteristics of the diffractive peak in the differential elastic pp scattering are affected by a small extrinsic curvature of the string.
ISSN:1550-7998
2470-0010
1550-2368
2470-0029
DOI:10.1103/PhysRevD.92.085012