ISSN:
1434-6052
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract This paper presents results on charm photoproduction in the energy interval 40 to 160 GeV, obtained from the high-statistics charm samples of the NA 14/2 experiment at CERN. We measure the charm cross-section, the distributions inx F andp 2 T and various production ratios and charge asymmetries. The total non-diffractive open-charm cross-section per nucleon is measured to be $$\sigma _{(\gamma N \to c\bar cX)} $$ at 〈E γ〉 =100 GeV. We discuss the photoproduction of charm in terms of theoretical and phenomenological models. We compare the measuredp 2 T andx F distributions with first-order QCD calculations of photon-gluon fusion and obtain a value for the charm-quark mass ofm c =1.5 +0.2 −0.1 GeV/c2.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01650430
Permalink