Calculation of Proton-Deuteron Scattering With Coulomb Force Effects

Ishikawa, S.

doi:10.1142/s0217732309000164

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Calculations performed in this paper are based on different approach from these: to solve Coulomb-modified Faddeev equations [3] as an integral equation form in coordinate space, which was successfully applied for the 3N bound state ( 3 He) [4] and the pd scattering problem below [5] and above [6,7] the breakup threshold. In this approach, an auxiliary potential Coulomb potential acting between a proton and the center of mass of the rest proton-neutron pair, is introduced to cancel out the long-rangeness of the pp Coulomb potential in the integral kernel.…”

Section: Three-nucleon Calculations Including Coulomb Force Effectsmentioning

confidence: 99%

Three-nucleon force effects in proton-deuteron scattering

Ishikawa

2010

EPJ Web of Conferences

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Abstract. Possible three-nucleon forces that may be considered in addition to a widely accepted two-pion exchange three-nucleon force are studied to improve the fit to experimental data of proton-deuteron scattering. Calculations are performed with including effects of long-range Coulomb force by a recently developed method to solve the Faddeev equation in coordinate space. Two different kinds of three-nucleon potentials: a phenomenological potential and one due to the exchange of pion and sigma bosons, are presented and compared with experimental data of elastic differential cross sections, a tensor analyzing power, and a nucleon-to-nucleon polarization transfer coefficient.

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Section: Three-nucleon Calculations Including Coulomb Force Effectsmentioning

confidence: 99%

Three-nucleon force effects in proton-deuteron scattering

Ishikawa

2010

EPJ Web of Conferences

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Faddeev Three-body Calculation of Triple-Alpha Reaction

Ishikawa

2012

Few-Body Syst

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Recently, the triple-α (3α) process, by which three 4 He nuclei are fused into a 12 C nucleus in stars, was studied by different methods in solving the quantum mechanical three-body problem. Their results of the thermonuclear reaction rate for the process differ by several orders at low stellar temperatures of 10 7 − 10 8 K. In this paper, we will present calculations of the 3α process by a modified Faddeev three-body formalism in which the long-range effects of Coulomb interactions are accommodated. The reaction rate of the process is calculated via an inverse process, three-alpha (3α) photodisintegration of a 12 C nucleus. Calculated reaction rate is about 10 times larger than that of the Nuclear Astrophysics Compilation of Reaction Rates (NACRE) at 10 7 K, and is remarkably smaller than the results of the recent three-body calculations. We will discuss a possible reason of the difference.

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Calculation of Proton-Deuteron Scattering With Coulomb Force Effects

Cited by 2 publications

References 23 publications

Three-nucleon force effects in proton-deuteron scattering

Three-nucleon force effects in proton-deuteron scattering

Faddeev Three-body Calculation of Triple-Alpha Reaction

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