The Photon Polarization Parameter of 2H(n,γ)3H reaction with Inclusion of the Electric Quadrupole Contribution

doi:10.1088/0256-307X/31/9/092102

Chin. Phys. Lett.

2014, Vol. 31

Issue (09): 092102 DOI: 10.1088/0256-307X/31/9/092102

NUCLEAR PHYSICS

The Photon Polarization Parameter of ²H(n,γ)³H reaction with Inclusion of the Electric Quadrupole Contribution

H. Sadeghi^**, M. Mosavi-Khansari

Department of Physics, Faculty of Science, Arak University, Arak 8349-8-38156, Iran

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H. Sadeghi, M. Mosavi-Khansari 2014 Chin. Phys. Lett. 31 092102

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Abstract We use effective field theory (EFT) for the calculation of neutron–deuteron radiative capture at very low energies. We present here the use of EFT to calculate a low-energy photo-nuclear observable in three-body systems, the photon polarization parameter and fore–aft asymmetry at thermal neutron energies up to next-to-next to leading order (N²LO), with inclusion of the electric quadrupole contribution. The photon polarization parameter in total is found to be R_c=?0.421±0.003 and is in good agreement with the other modern theoretical calculations based on modern nucleon–nucleon potentials. In comparison with our previous work, a satisfactory agreement with the available experimental data is found by inclusion of the electric quadrupole contribution.

Published: 22 August 2014

PACS:	21.45.-v	(Few-body systems)
	25.10.+s	(Nuclear reactions involving few-nucleon systems)
	25.20.-x	(Photonuclear reactions)
	27.10.+h	(A ≤ 5)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/31/9/092102 OR https://cpl.iphy.ac.cn/Y2014/V31/I09/092102

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