Empirical parametrization of the nucleon-nucleon elastic scattering amplitude at high beam momenta for Glauber calculations and Monte Carlo simulations

doi:10.1103/PhysRevC.94.064003

	Empirical parametrization of the nucleon-nucleon elastic scattering amplitude at high beam momenta for Glauber calculations and Monte Carlo simulations
	Xu, H.5; Ritman, J.5,6,7; Hu, Q.3,4,5 ; Galoyan, A.2; Uzhinsky, V.1
刊名	PHYSICAL REVIEW C
	2016-12-14
卷号	94 页码:10
ISSN号	2469-9985
DOI	10.1103/PhysRevC.94.064003
英文摘要	A parametrization of the nucleon-nucleon elastic scattering amplitude is needed for future experiments with nucleon and nuclear beams in the beam momentum range of 2-50 GeV/c/nucleon. There are many parametrizations of the amplitude at P-lab > 25-50 GeV/c, and at P-lab <= 5 GeV/c. Our paper is aimed at covering the range between 5-50 GeV/c. The amplitude is used in Glauber calculations of various cross sections and Monte Carlo simulations of nucleon-nucleon scatterings. Usually, the differential nucleon-nucleon elastic scattering cross sections are described by an exponential expression. Corresponding experimental data on pp interactions at vertical bar t vertical bar > 0.005 (GeV/c)(2) and vertical bar t vertical bar <= 0.125 (GeV/c)(2) have been fit. We propose formulas to approximate the beam momentum dependence of these parameters in the momentum range considered. The same was done for np interactions at vertical bar t vertical bar <= 0.5 (GeV/c)(2). Expressions for the momentum dependence of the total and elastic cross sections, and the ratio of real to imaginary parts of the amplitude at zero momentum transfer are also given for pp and np collisions. These results are sufficient for a first approximation of the Glauber calculations. For more exact calculations we fit the data at vertical bar t vertical bar > 0.005 (GeV/c)(2) without restrictions on the maximum value of vertical bar t vertical bar using an expression based on two coherent exponentials. The parameters of the fits are found for the beam momentum range 2-50 GeV/c.
WOS关键词	DIFFERENTIAL CROSS-SECTION ; PROTON-PROTON SCATTERING ; P-P SCATTERING ; NEUTRON-PROTON ; GEV-C ; ENERGY-RANGE ; INTERMEDIATE ENERGIES ; MATTER DISTRIBUTIONS ; INVERSE KINEMATICS ; HALO NUCLEI
WOS研究方向	Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000390269300001
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43971]
专题	近代物理研究所_实验物理中心
通讯作者	Uzhinsky, V.
作者单位	1.JINR, Lab Informat Technol, Dubna, Russia 2.JINR, Veksler & Baldin Lab High Energy Phys, Dubna, Russia 3.Chinese Acad Sci, Inst Modern Phys, Key Lab High Precis Nucl Spect, Lanzhou 730000, Peoples R China 4.Chinese Acad Sci, Inst Modern Phys, Ctr Nucl Matter Sci, Lanzhou 730000, Peoples R China 5.Forschungszentrum Julich, Inst Kernphys, D-52425 Julich, Germany 6.Ruhr Univ Bochum, D-44780 Bochum, Germany 7.JARA FAME, D-52425 Julich, Germany
推荐引用方式 GB/T 7714	Xu, H.,Ritman, J.,Hu, Q.,et al. Empirical parametrization of the nucleon-nucleon elastic scattering amplitude at high beam momenta for Glauber calculations and Monte Carlo simulations[J]. PHYSICAL REVIEW C,2016,94:10.
APA	Xu, H.,Ritman, J.,Hu, Q.,Galoyan, A.,&Uzhinsky, V..(2016).Empirical parametrization of the nucleon-nucleon elastic scattering amplitude at high beam momenta for Glauber calculations and Monte Carlo simulations.PHYSICAL REVIEW C,94,10.
MLA	Xu, H.,et al."Empirical parametrization of the nucleon-nucleon elastic scattering amplitude at high beam momenta for Glauber calculations and Monte Carlo simulations".PHYSICAL REVIEW C 94(2016):10.