scholarly journals Studies of Deuteron–Proton Collisions at 100 MeV

2021 ◽  
Vol 62 (4) ◽  
Author(s):  
I. Skwira-Chalot ◽  
N. Kalantar-Nayestanaki ◽  
St. Kistryn ◽  
A. Kozela ◽  
E. Stephan
Keyword(s):  
Cross Section ◽  
Effective Field Theory ◽  
Beam Energy ◽  
Effective Field ◽  
Breakup Reaction ◽  
Low Energy ◽  
Chiral Effective Field Theory ◽  
Proton Collisions ◽  
Realistic Potentials ◽  
Good Agreement

AbstractDifferential cross section for the $$^1H(d,pp)n$$ 1 H ( d , p p ) n reaction is sensitive to various dynamical ingredients and allows for thorough tests of theoretical potentials describing the interaction in the three nucleon systems. The analysis of the experimental data collected for the breakup reaction at the beam energy of 100 MeV has been performed and the first cross section results for selected configurations are presented in this paper. They are in good agreement with calculations based on the realistic potentials. Studies at this relatively low energy will also be important for examining awaited calculations within the Chiral Effective Field Theory.

d + t → n + α fusion reaction in a model inspired by halo/cluster effective field theory

2017 ◽  
Vol 26 (12) ◽  
pp. 1750080 ◽  
Author(s):  
M. Moeini Arani ◽  
A. Koohi ◽  
S. Yarmahmoodi
Keyword(s):  
Field Theory ◽  
Cross Section ◽  
Effective Field Theory ◽  
Fusion Reaction ◽  
Coulomb Force ◽  
Effective Field ◽  
Low Energy ◽  
Coulomb Correction ◽  
Unknown Parameters ◽  
Energy Formula

We study the low-energy [Formula: see text] fusion reaction using a model inspired by the halo/cluster effective field theory (H/CEFT) formalism. For this purpose, we initially focus on the [Formula: see text] reaction without considering the Coulomb force in the incoming deuteron–triton system. In the next step, we insert the Coulomb correction in the [Formula: see text] cross-section. The cross-section results involve unknown parameters. So, finally, we fit the H/CEFT cross-section of the [Formula: see text] reaction to the experimental data and obtain the values of these unknown parameters.

scholarly journals ELECTROMAGNETIC PROCESSES IN χEFT

2009 ◽  
Vol 24 (11n13) ◽  
pp. 931-936 ◽  
Author(s):  
S. PASTORE ◽  
R. SCHIAVILLA ◽  
J. L. GOITY
Keyword(s):  
Field Theory ◽  
Circular Polarization ◽  
Cross Section ◽  
Effective Field Theory ◽  
Magnetic Moments ◽  
Effective Field ◽  
Polarization Parameter ◽  
Chiral Effective Field Theory ◽  
Electromagnetic Processes ◽  
Theory Framework

Nuclear electromagnetic currents derived in a chiral-effective-field-theory framework including explicit nucleons, Δ isobars, and pions up to N2LO, i.e. ignoring loop corrections, are used in a study of neutron radiative captures on protons and deuterons at thermal energies, and of A=2 and 3 nuclei magnetic moments. With the strengths of the Δ-excitation currents determined to reproduce the n-p cross section and isovector combination of the trinucleon magnetic moments, we find that the cross section and photon circular polarization parameter, measured respectively in n-d and [Formula: see text] processes, are significantly underpredicted by theory.

scholarly journals Partial restoration of chiral symmetry in hot and dense neutron matter

2017 ◽  
Vol 26 (01n02) ◽  
pp. 1740010 ◽  
Author(s):  
Jeremy W. Holt ◽  
Keighley E. Rockcliffe
Keyword(s):  
Field Theory ◽  
Chiral Symmetry ◽  
Effective Field Theory ◽  
Effective Field ◽  
Neutron Matter ◽  
Low Energy ◽  
Chiral Symmetry Restoration ◽  
Chiral Effective Field Theory ◽  
Partial Restoration

We review efforts to describe the approach to chiral symmetry restoration in neutron matter from the low-energy realization of QCD, chiral effective field theory.

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