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NLO perturbative QCD predictions for gamma gamma -> M+ M- (M=pi, K) (CROSBI ID 125358)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Duplančić, Goran ; Nižić, Bene NLO perturbative QCD predictions for gamma gamma -> M+ M- (M=pi, K) // Physical review letters, 97 (2006), 142003-x

Podaci o odgovornosti

Duplančić, Goran ; Nižić, Bene

engleski

NLO perturbative QCD predictions for gamma gamma -> M+ M- (M=pi, K)

We report the first complete leading-twist next-to-leading-order perturbative QCD predictions for the two-photon exclusive channels gamma gamma -> M+ M- (M=pi, K) at large momentum transfer. The asymptotic distribution amplitude is utilized as a candidate form for the nonperturbative dynamical input. Comparison of the obtained results with the existing experimental data does not provide sufficiently clear evidence to support the applicability of the hard-scattering approach at currently accessible energies.

perturbative QCD; exclusive channel

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Podaci o izdanju

97

2006.

142003-x

objavljeno

0031-9007

Povezanost rada

Fizika

Indeksiranost