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

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.

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

EPJ Web of Conferences ◽

10.1051/epjconf/201920401019 ◽

2019 ◽

Vol 204 ◽

pp. 01019 ◽

Cited By ~ 2

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.

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

Journal of Physics G Nuclear and Particle Physics ◽

10.1088/1361-6471/ac3891 ◽

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.

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