Ridge Formation Induced by Jets in $pp$ Collisions at 7 TeV
Rudolph C. Hwa, C. B. Yang
TL;DR
This paper explains the ridge phenomenon in 7 TeV proton-proton collisions as a result of soft parton enhancement caused by semihard jet energy loss, without relying on hydrodynamics.
Contribution
It provides a novel interpretation of ridge formation in pp collisions through jet-induced soft parton enhancement, extending concepts from nuclear collision models.
Findings
Reproduces p_T and multiplicity dependencies of the ridge
Proposes a non-hydrodynamic mechanism for azimuthal anisotropy
Suggests new observables for further validation
Abstract
An interpretation of the ridge phenomenon found in pp collisions at 7 TeV is given in terms of enhancement of soft partons due to energy loss of semihard jets. A description of ridge formation in nuclear collisions can directly be extended to pp collisions, since hydrodynamics is not used, and azimuthal anisotropy is generated by semihard scattering. Both the p_T and multiplicity dependencies are well reproduced. Some suggestions are made about other observables.
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