Jet charge distributions in electron-ion collisions are shown to be sensitive to neutron skin thickness, with peripheral collisions suppressing positive jets and enhancing negative jets.
Next-to-Leading QCD Factorization for Semi-Inclusive Deep Inelastic Scattering at Twist-4
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abstract
Within the framework of a high-twist approach, we calculate the next-to-leading order (NLO) perturbative QCD corrections to the transverse momentum broadening in semi-inclusive hadron production in deeply inelastic $e+A$ collisions, as well as lepton pair production in $p+A$ collisions. With explicit calculations of both real and virtual contributions, we verify, for the first time, the factorization theorem at twist 4 in NLO for the nuclear-enhanced transverse momentum weighted differential cross section and demonstrate the universality of the associated twist-4 quark-gluon correlation function. We also identify the QCD evolution equation for the twist-4 quark-gluon correlation function in a large nucleus, which can be solved to determine the scale dependence of the jet transport parameter in the study of jet quenching.
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Unraveling the neutron skin thickness through jet charge in deep inelastic scattering
Jet charge distributions in electron-ion collisions are shown to be sensitive to neutron skin thickness, with peripheral collisions suppressing positive jets and enhancing negative jets.