Meson structure in deep inelastic scattering
نویسندگان
چکیده
منابع مشابه
Meson Structure in Deep Inelastic Scattering
We study the deep inelastic structure functions of mesons within the Nambu and JonaLasinio model. We calculate the valence quark distributions in π, K, and ρ mesons at the low energy model scale, which are evoluted to the experimental momentum scale in terms of the Altarelli-Parisi equation. The resulting distribution functions show reasonable agreements with experiment. We also discuss the sem...
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We address the question whether the nucleon’s antiquark sea can be attributed entirely to its virtual meson cloud and, in essence, whether there exists a smooth transition between hadronic and quark-gluon degrees of freedom. We take into account contributions from π and K mesons and compare with the nucleon’s antiquark distributions which serve as a non-perturbative input to the QCD evolution e...
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ν = q · P M = E − E′ is the lepton’s energy loss in the nucleon rest frame (in earlier literature sometimes ν = q · P ). Here, E and E′ are the initial and final lepton energies in the nucleon rest frame. Q2 = −q2 = 2(EE′−−→k · −→k ′)−m2 −m2 ′ where m (m ′) is the initial (final) lepton mass. If EE′ sin2(θ/2) m2 , m2 ′ , then ≈ 4EE′ sin2(θ/2), where θ is the lepton’s scattering angle with respe...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 1994
ISSN: 0375-9474
DOI: 10.1016/0375-9474(94)90916-4