scholarly journals Study of Two-Photon Exchange via the Beam Transverse Single Spin Asymmetry in Electron-Proton Elastic Scattering at Forward Angles over a Wide Energy Range

2020 ◽  
Vol 124 (12) ◽  
Author(s):  
B. Gou ◽  
J. Arvieux ◽  
K. Aulenbacher ◽  
D. Balaguer Ríos ◽  
S. Baunack ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Wide Energy Range ◽  
Photon Exchange ◽  
Single Spin ◽  
Two Photon ◽  
Proton Elastic Scattering ◽  
Wide Energy

scholarly journals Energy dependence of the vector Ay and tensor Ayy and Axx analyzing powers in deuteron-proton elastic scattering at large scattering angles

2019 ◽  
Vol 204 ◽  
pp. 01019 ◽  
Author(s):  
V.P. Ladygin ◽  
A.V. Averyanov ◽  
E.V. Chernykh ◽  
D. Enache ◽  
Yu.V. Gurchin ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Short Range ◽  
Deuteron Beam ◽  
Nucleon Nucleon ◽  
Ion Source ◽  
Wide Energy Range ◽  
Analyzing Powers ◽  
Proton Elastic Scattering ◽  
Wide Energy

The results on the angular dependencies of the vector Ay and tensor Ayy and Axx analyzing powers in deuteron-proton elastic scattering at large scattering angles are presented. These data were obtained at internal target at the JINR Nuclotron in the energy range 400-1800 MeV using polarized deuteron beam from new polarized ion source. New data on the deuteron analyzing powers in the wide energy range demonstrate strong sensitivity to the short-range spin structure of the isoscalar nucleon-nucleon correlations observed earlier. The perspectives of further studies of the short-range correlations using carbon, polarized deuteron and proton beams are discussed.

scholarly journals Single spin asymmetry AN in polarized proton–proton elastic scattering at s=200 GeV

2013 ◽  
Vol 719 (1-3) ◽  
pp. 62-69 ◽  
Author(s):  
L. Adamczyk ◽  
G. Agakishiev ◽  
M.M. Aggarwal ◽  
Z. Ahammed ◽  
A.V. Alakhverdyants ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Spin Asymmetry ◽  
Single Spin Asymmetry ◽  
Proton Proton ◽  
Single Spin ◽  
Proton Elastic Scattering ◽  
Polarized Proton

New measurements and analysis of elastic scattering of $$^{13}$$C by $$^{9}$$Be nuclei in a wide energy range

2021 ◽  
Vol 57 (7) ◽  
Author(s):  
Marzhan Nassurlla ◽  
N. Burtebayev ◽  
B. K. Karakozov ◽  
S. B. Sakuta ◽  
I. Boztosun ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Wide Energy Range ◽  
Wide Energy

scholarly journals The Deuteron Beam Polarimetry at Nuclotron-NICA

2016 ◽  
Vol 40 ◽  
pp. 1660087 ◽  
Author(s):  
V. P. Ladygin ◽  
P. K. Kurilkin ◽  
A. Yu. Isupov ◽  
M. Janek ◽  
S. G. Reznikov
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Deuteron Beam ◽  
Low Energy ◽  
Beam Polarization ◽  
Wide Energy Range ◽  
Internal Target ◽  
Wide Energy ◽  
The Asymmetry

The current deuteron beam polarimetry at Nuclotron is provided by the Internal Target polarimeter based on the use of the asymmetry in dp- elastic scattering at large angles in the c.m.s. at 270 MeV. The calibration of the existing deuteron beam polarimeter at Internal Target in the wide energy range will allow to obtain the accuracy of the vector and tensor beam polarization values of about 3-5%. Further upgrade of low energy and extracted beam polarimeters is discussed.

Role of inelastic couplings in the 4He + 208Pb elastic scattering in a wide energy range

2021 ◽  
Author(s):  
Luiz Carlos Chamon ◽  
Leandro Romero Gasques ◽  
Juan Carlos Zamora Cardona
Keyword(s):  
Elastic Scattering ◽  
Energy Range ◽  
Energy Dependence ◽  
Cross Sections ◽  
Optical Model ◽  
Nucleon Nucleon ◽  
Scattering Data ◽  
Wide Energy Range ◽  
Data Analyses ◽  
Wide Energy

Abstract The phenomenological strengths of the real part of the optical potential, obtained from elastic scattering data analyses within the optical model approach, present significant energy-dependence. This behavior has been associated to the intrinsic energy-dependence of the effective nucleon-nucleon interaction. However, in earlier works, we proposed that at least part of this dependence can arise from the effect of couplings to inelastic states of the nuclei. In order to deepen this study, in this paper we present extensive data analyses for the elastic scattering and inelastic excitation of 111 states of 208Pb, for the 4He + 208Pb system in a wide energy range. With the purpose of comparison, the theoretical cross sections are obtained in different approaches for the imaginary part of the potential, and within both contexts: optical model (distorted wave Born approximation) and coupled-channel calculations.

SINGLE SPIN ASYMMETRIES IN INCLUSIVE DIS AND MULTI-PARTON CORRELATIONS IN THE NUCLEON

2012 ◽  
Vol 20 ◽  
pp. 137-144
Author(s):  
ANDREAS METZ ◽  
DANIEL PITONYAK ◽  
ANDREAS SCHÄFER ◽  
MARC SCHLEGEL ◽  
WERNER VOGELSANG ◽  
...  
Keyword(s):  
Experimental Data ◽  
Spin Asymmetry ◽  
Recent Experimental Data ◽  
Hard Scattering ◽  
Photon Exchange ◽  
Spin Asymmetries ◽  
Single Spin ◽  
Two Photon ◽  
Single Spin Asymmetries ◽  
Dependent Relation

Transverse single spin asymmetries in inclusive deep-inelastic lepton-nucleon scattering can be generated through multi-photon exchange between the leptonic and the hadronic part of the process. Here we consider two-photon exchange, and mainly focus on the transverse target spin asymmetry. In particular, we investigate the case where two photons couple to different quarks. Such a contribution involves a quark-photon-quark correlator in the nucleon, which has a (model-dependent) relation to the Efremov-Teryaev-Qiu-Sterman quark-gluon-quark correlator TF. Using different parameterizations for TF we compute the transverse target spin asymmetry for both a proton and a neutron target, and compare the results to recent experimental data. Potential implications on our general understanding of single spin asymmetries in hard scattering processes are discussed as well.

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