Azimuthal asymmetries in SIDIS off unpolarized targets at COMPASS
نویسنده
چکیده
Azimuthal asymmetries measured in unpolarized semi-inclusive deep inelastic scattering bring important information on the inner structure of the nucleons, and can be used both to estimate the average quark transverse momentum k⊥ and to access the so-far unmeasured Boer-Mulders functions. COMPASS results using part of the 2004 data collected with a LiD target and a 160 GeV μ beam are presented separately for positive and negative hadrons.
منابع مشابه
Measurements of Unpolarized Azimuthal Asymmetries at Compass
Azimuthal Asymmetries in unpolarized SIDIS can be used to probe the transverse momentum of quarks inside the nucleon. Furthermore, they give access to the so-far unmeasured Boer-Mulders function. We report on the first measurement of azimuthal asymmetries of the SIDIS cross section from scattering of muons off a deuteron target.
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Azimuthal asymmetries in unpolarized SIDIS can be used to probe the transverse momentum of the quarks inside the nucleon. Furthermore they give access to the so-far unmeasured Boer-Mulders function. We report on the extraction of these asymmetries from the COMPASS data taken with a 160 GeV/c μ beam impinging on a deuteron target. This asymmetries have been extracted separately for positive and ...
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تاریخ انتشار 2009