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arXiv · 1512.03682

Recent progress in some exclusive and semi-exclusive processes in proton-proton collisions

Antoni Szczurek·Anna Cisek·Marta Luszczak·Wolfgang Schafer
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Abstract

We present the main results of our recent analyses of exclusive production of vector charmonia ($J/ψ$ and $ψ'$) in $k_t$-factorization approach and for $γγ$ production of charged dilepton pairs in exclusive and semiinclusive processes in a new approach, similar in spirit to $k_t$-factorization. The results for charmonia are compared with recent results of the LHCb collaboration. We include some helicity flip contributions and quantify the effect of absorption correction. The effect of $c \bar c$ wave function is illustrated. We present uncertainties related to $F_2$ structure function which are the main ingredient of the approach. Our results are compared with recent CMS data for dilepton production with lepton isolation cuts imposed.

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Antoni Szczurek, Anna Cisek, Marta Luszczak, Wolfgang Schafer. 2015-12-11. Recent progress in some exclusive and semi-exclusive processes in proton-proton collisions. https://doi.org/10.1051/epjconf%2F201612002007

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