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Titolo:
The perturbative proton form factor reexamined
Autore:
Kundu, B; Li, HN; Samuelsson, J; Jain, P;
Indirizzi:
Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India IndianInst Technol Kanpur Uttar Pradesh India 208016 ttar Pradesh, India Natl Cheng Kung Univ, Dept Phys, Tainan 70101, Taiwan Natl Cheng Kung Univ Tainan Taiwan 70101 Dept Phys, Tainan 70101, Taiwan Mehta Res Inst Math & Math Phys Jhusi, Allahabad, Uttar Pradesh, India Mehta Res Inst Math & Math Phys Jhusi Allahabad Uttar Pradesh India ndia
Titolo Testata:
EUROPEAN PHYSICAL JOURNAL C
fascicolo: 4, volume: 8, anno: 1999,
pagine: 637 - 642
SICI:
1434-6044(199905)8:4<637:TPPFFR>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTUM CHROMODYNAMICS; EXCLUSIVE PROCESSES; SUDAKOV SUPPRESSION; COMPTON-SCATTERING; MOMENTUM-TRANSFER; QCD; BEHAVIOR;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Kundu, B Indian Inst Technol, Dept Phys, Kanpur 208016, Uttar Pradesh, India Indian Inst Technol Kanpur Uttar Pradesh India 208016 esh, India
Citazione:
B. Kundu et al., "The perturbative proton form factor reexamined", EUR PHY J C, 8(4), 1999, pp. 637-642

Abstract

We recalculate the proton Dirac form factor based on the perturbative QCD factorization theorem, which includes Sudakov suppression. The evolution scale of the proton wave functions and the infrared cutoffs for the Sudakov re-summation are carefully chosen such that the soft divergences from large coupling constants are diminished and perturbative QCD predictions are stabilized. We find that the King-Sachrajda model for the proton wave function leads to results which are in better agreement with experimental data than those from the Chernyak-Zhitnitsky wave function.

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Documento generato il 02/04/20 alle ore 02:55:24