DIS off glueballs from string theory: the role of the chiral anomaly and the Chern-Simons term
We calculate the structure function F<sub>3</sub>(x, q<sup>2</sup>) of the hadronic tensor of deep inelastic scattering (DIS) of charged leptons from glueballs of N= 4 SYM theory at strong coupling and at small values of the Bjorken parameter in the gauge/string theory dualit...
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| Autores principales: | , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2018
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/104660 http://hdl.handle.net/11336/95917 https://link.springer.com/article/10.1007/JHEP04(2018)118 |
| Aporte de: |
| Sumario: | We calculate the structure function F<sub>3</sub>(x, q<sup>2</sup>) of the hadronic tensor of deep inelastic scattering (DIS) of charged leptons from glueballs of N= 4 SYM theory at strong coupling and at small values of the Bjorken parameter in the gauge/string theory duality framework. This is done in terms of type IIB superstring theory scattering amplitudes. From the AdS<sub>5</sub> perspective, the relevant part of the scattering amplitude comes from the five-dimensional non-Abelian Chern-Simons terms in the SU(4) gauged supergravity obtained from dimensional reduction on S<sup>5</sup>. From type IIB superstring theory we derive an effective Lagrangian describing the four-point interaction in the local approximation. The exponentially small regime of the Bjorken parameter is investigated using Pomeron techniques. |
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