145 citations · 151 across the 6 of their papers we have counts for
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Azimuthal angular entanglement between decaying particles in ultra-peripheral ion collisions
Spencer R. Klein
Ultra-peripheral collisions (UPCs) involving relativistic heavy ions are a unique laboratory to study quantum correlations. The intense electromagnetic fields generate high rates o…
Quantum mechanical aspects of coherent photoproduction: the limits of coherence, and multiple vector mesons
Spencer R. Klein
Quantum mechanics is central to coherent photoproduction in ultra-peripheral collisions (UPCs). This writeup will discuss some surprising aspects of UPCs that stem from these quant…
Heavy Flavour Production in Deep--Inelastic Scattering - Two--Loop Massive Operator Matrix Elements and Beyond
I. Bierenbaum, J. Blümlein, S. Klein
We calculate the O($\eps$)--term of the two--loop massive operator matrix elements for twist 2--operators, which contribute to the heavy flavour Wilson coefficients in unpolarized…
Interference in Exclusive Vector Meson Production in Heavy Ion Collisions
Spencer R. Klein, Joakim Nystrand
Photons emitted from the electromagnetic fields of relativistic heavy ions can fluctuate into quark anti-quark pairs and scatter from a target nucleus, emerging as vector mesons. T…