Hard Exclusive Baryon-antibaryon Production in 2-γ Collisions

EXCLUSIVE BARYON-ANTIBARYON PRODUCTION IN γγ COLLISIONS AT e + e − COLLIDERS

Experimental Status of Photon Photon into Baryon Antibaryon Pairs

The exclusive production of BB pairs in the collisions of two quasi-real photons have been studied in different experiments at e+e− colliders. Results are presented for the processes γ γ → pp and γ γ → . The cross-section measurements are compared with the recent analytic calculations based on the quark-diquark model predictions. Monte Carlo studies have been done to investigate the PEP-N expec...

Hard exclusive baryon - antibaryon production in two - photon collisions

We study baryon pair production in two-photon collisions, γγ → BB̄, within perturbative quantum chromodynamics, treating baryons as quark-diquark systems. We extend previous work within the same approach by treating constituent-mass effects systematically by means of an expansion in the small parameter (mass/photon energy). Our approach enables us to give a consistent description of the cross se...

exclusive baryon - antibaryon production in two - photon collisions

We study baryon pair production in two-photon collisions, γγ → BB̄, within perturbative quantum chromodynamics, treating baryons as quark-diquark systems. We extend previous work within the same approach by treating constituent-mass effects systematically by means of an expansion in the small parameter (mass/photon energy). Our approach enables us to give a consistent description of the cross se...

Exclusive Decuplet-Baryon Pair Production in Two-Photon Collisions

This work extends our previous studies of two-photon annihilation into baryon-antibaryon pairs from spin-1/2 octet to spin-3/2 decuplet baryons. Our approach is based on perturbative QCD and treats baryons as quarkdiquark systems. Using the same model parameters as in our previous work, supplemented by QCD sum-rule results for decuplet baryon wave functions, we are able to give absolute predict...