Measurement of the Polarized Structure Function g p 1 ( x , Q 2 ) at HERA
نویسندگان
چکیده
We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA, including statistical errors, and discuss systematic uncertainties. We show that these data would shed light on the small x behaviour of the polarized structure function g 1 , and would reduce substantially the uncertainty on the determination of the polarized gluon distribution.
منابع مشابه
DESY 97 - 249 December 1997 A Study of the Polarized Structure Function g p 1 ( x , Q 2 ) and the Polarized Gluon Distribution ∆ g ( x , Q 2 ) at HERA
We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-x behavior of the polarized structure function g1, and will reduce the uncertainty in the determin...
متن کاملA Study of the Polarized Structure Function g p 1 ( x , Q 2 ) and the Polarized Gluon Distribution ∆ g ( x , Q 2 ) at HERA
We present estimates of possible data on spin-dependent asymmetries in inclusive scattering of high energy polarized electrons by high energy polarized protons at HERA with their statistical errors and discuss systematic errors. We show that these data will provide important information on the low-x behavior of the polarized structure function g1, and will reduce the uncertainty in the determin...
متن کاملx / 95 10 00 9 v 2 2 2 N ov 1 99 5 Measurement of the Proton Structure Function F 2 at low x and low Q 2 at HERA ZEUS
We report on a measurement of the proton structure function F2 in the range 3.5 × 10 ≤ x ≤ 4 × 10 and 1.5 GeV ≤ Q ≤ 15 GeV at the ep collider HERA operating at a centre-of-mass energy of √ s = 300 GeV. The rise of F2 with decreasing x observed in the previous HERA measurements persists in this lower x and Q range. The Q evolution of F2, even at the lowest Q 2 and x measured, is consistent with ...
متن کاملMeasurement of the neutron spin structure function with a polarized 3He internal target
Results are reported from the HERMES experiment at HERA on a measurement of the neutron spin structure function ~ ( x , Q2) in deep inelastic scattering using 27.5 GeV longitudinally polarized positrons incident on a polarized 3He internal gas target. The data cover the kinematic range 0.023 < x < 0.6 and 1 (GeV/c) 2 < Q2 < 15 (GeV/c ) 2. The integral fo~i0623 ~ ( x ) dx evaluated at a fixed Qz...
متن کاملPolarized Virtual Photon Structure Function in the Next-to-leading Order in QCD
The virtual photon structure function g 1 (x,Q , P ), which can be obtained in polarized ee colliding-beam experiments, is investigated for Λ ≪ P 2 ≪ Q, where −Q (−P ) is the mass squared of the probe (target) photon. The analysis is made to next-to-leading order in QCD, in the framework of the QCD improved parton model with the DGLAP evolution equations. The non-leading corrections significant...
متن کامل