/ 02 06 21 5 v 1 2 1 Ju n 20 02 1 Deeply Virtual Compton Scattering on the Deuteron ∗

نویسندگان

  • F. Cano
  • B. Pire
چکیده

We study deeply virtual Compton scattering (DVCS) on a deuteron target. We model the Generalized Quark Distributions in the deuteron by using the impulse approximation for the lowest Fock-space state. Numerical predictions are given for the unpolarized cross sections for the kinematical regimes relevant for JLab and HERMES at HERA. Differential cross sections show the same pattern as for the proton case and at low values of −t they are of comparable size.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ar X iv : h ep - p h / 02 06 26 7 v 1 2 6 Ju n 20 02 Azimuthal asymmetries and Collins analyzing power ∗

Spin azimuthal asymmetries in pion electro-production in deep inelastic scattering off longitudinally polarized protons, measured by HERMES, are well reproduced theoretically with no adjustable parameters. Predictions for azimuthal asymmetries for a longitudinally polarized deuteron target are given. The z-dependence of the Collins fragmentation function is extracted. The first information on e...

متن کامل

x / 02 05 02 6 v 1 1 3 M ay 2 00 2 PROMPT PHOTONS AND DEEPLY VIRTUAL COMPTON SCATTERING AT HERA

Two results in ep physics using HERA data are discussed: a measurement of the effective transverse parton momentum in the proton by studying the production of prompt-photons in photoproduction events in the ZEUS collaboration and differential cross sections for Deeply Virtual Compton Scattering obtained by both the H1 and ZEUS collaborations.

متن کامل

ar X iv : h ep - p h / 00 06 32 1 v 1 2 8 Ju n 20 00

We compute amplitude of deeply virtual Compton scattering in the parton model. We found that the amplitude in the hard regime up to the accuracy O(1/Q) depends on new skewed parton distributions (SPD's). These additional contributions make the DVCS amplitude explicitly transverse. The new SPD's contribute to various spin, charge and azimuthal asymmetries at the same order in 1/Q as the leading ...

متن کامل

ar X iv : h ep - p h / 01 06 22 8 v 1 2 1 Ju n 20 01 Spin effects in deeply virtual Compton scattering

We consider the azimuthal angle dependence in the cross section of the hard leptoproduction of a photon on a nucleon target. We show that this dependence allows to define observables that isolate the twist-two and twist-three sectors in the deeply virtual Compton scattering amplitude. All twist-two and twist-three Compton form factors can be extracted from measurements of the charge odd part of...

متن کامل

ar X iv : h ep - e x / 03 02 03 2 v 1 2 3 Fe b 20 03 Physics of the CLAS collaboration : some selected results

The CLAS collaboration in Hall B at the Thomas Jeffeson National Accelerator Facility (Jefferson Lab) has a broad scientific program. Recent results on the main topics are presented. These concern the electromagnetic exitation of nucleon resonances, the measurement of inclusive spin structrure functions in the nucleon resonance region, the first signature of the Generalized Parton Distributions...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002