Abstract
Large azimuthal quadrupole and octupole asymmetries have recently been found in collisions at the LHC. We argue that these might arise from a projectile dipole scattering off fluctuations in the target with a size on the order of the dipole. In a holographic scenario, parity-even angular moments are generated by the real part of the light-like Wilson loop due to the contribution from the background metric to the Nambu-Goto action. On the other hand, parity-odd moments must arise from the imaginary part of the light-like Wilson loop, which is naturally induced by a fluctuating Neveu-Schwarz 2-form.
- Received 7 February 2014
DOI:https://doi.org/10.1103/PhysRevD.89.094008
© 2014 American Physical Society