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NSR database version of April 27, 2024.

Search: Author = R.Higa

Found 17 matches.

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2022HI04      Phys.Rev. C 106, 014601 (2022)

R.Higa, P.Premarathna, G.Rupak

Coupled-channels treatment of ⁷Be(p, γ)⁸B in effective field theory

NUCLEAR REACTIONS ⁷Be(p, γ), E(cm)=0.2864-50.3 MeV; calculated S-factor, E1 and M1 contributions to the radiative capture. Halo effective field theory up to next-to-next-to-leading order (NNLO). Comparison to experimental data and previous EFT calculations. Bayesian analysis to estimate the expected theory error.

doi: 10.1103/PhysRevC.106.014601
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2021HI13      Eur.Phys.J. A 57, 269 (2021)

R.Higa, P.Premarathna, G.Rupak

Coupled-channel treatment of ⁷Li(n, γ)⁸Li in effective field theory

NUCLEAR REACTIONS ⁷Li(n, γ), E<1 MeV; calculated total capture σ, contributions of inelastic channels. Comparison with available data.

doi: 10.1140/epja/s10050-021-00516-6
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2018HI09      Eur.Phys.J. A 54, 89 (2018)

R.Higa, G.Rupak, A.Vaghani

Radiative ³He(α, g)⁷Be reaction in halo effective field theory

NUCLEAR REACTIONS ³He(α, γ), E not given; calculated phase shifts using halo effective field theory (EFT) (in LO and NLO); deduced parameters from simultaneous fitting published phase shift data for both reactions. ³He(α, γ)⁷Be, E(cm)=0-1600 keV; calculated S-factor, branching ratio.Compared to data.

doi: 10.1140/epja/i2018-12486-5
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2017BA17      Eur.Phys.J. A 53, 126 (2017)

J.F.Babb, R.Higa, M.S.Hussein

Dipole-dipole dispersion interactions between neutrons

NUCLEAR STRUCTURE ¹n; calculated electric, magnetic polarizability vs photon energy, CP-interaction between two neutrons, neutron and a wall, neutron and two walls.

doi: 10.1140/epja/i2017-12313-7
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2017HU16      Acta Phys.Pol. B48, 1837 (2017)

M.S.Hussein, J.F.Babb, R.Higa

The Casimir-Polder Interaction Between Two Neutrons and Possible Relevance to Tetraneutron States

doi: 10.5506/APhysPolB.48.1837
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2015HI09      Few-Body Systems 56, 761 (2015)

R.Higa

Capture Reactions with Halo Effective Field Theory

NUCLEAR REACTIONS ⁷Li(n, X), E<1 MeV; calculated σ. Comparison with available data.

doi: 10.1007/s00601-015-1004-x
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2012FE02      Eur.Phys.J. A 48, 24 (2012)

L.Fernando, R.Higa, G.Rupak

Leading E1 and M1 contributions to radiative neutron capture on lithium-7

doi: 10.1140/epja/i2012-12024-7
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2011DE34      Phys.Rev. C 84, 065501 (2011)

J.de Vries, R.Higa, C.-P.Liu, E.Mereghetti, I.Stetcu, R.G.E.Timmermans, U.van Kolck

Electric dipole moments of light nuclei from chiral effective field theory

NUCLEAR STRUCTURE ^2,3H, ³He; calculated electric dipole moments by systematic expansion provided by chiral effective field theory (EFT) taking into account parity and time reversal violation.

doi: 10.1103/PhysRevC.84.065501
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2011RU09      Phys.Rev.Lett. 106, 222501 (2011)

G.Rupak, R.Higa

Model-Independent Calculation of Radiative Neutron Capture on Lithium-7

NUCLEAR REACTIONS ⁷Li(n, γ), E not given; calculated σ. Phenomenological potentials in the single-particle approximation.

doi: 10.1103/PhysRevLett.106.222501
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2008HA35      Eur.Phys.J. A 37, 193 (2008)

H.-W.Hammer, R.Higa

A model study of discrete scale invariance and long-range interactions

doi: 10.1140/epja/i2008-10617-3
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2008HI04      Phys.Rev. C 77, 034003 (2008)

R.Higa, M.Pavon Valderrama, E.Ruiz Arriola

Renormalization of the NN interaction with Lorentz-invariant chiral two-pion exchange

NUCLEAR STRUCTURE ²H; calculated wave function.

doi: 10.1103/PhysRevC.77.034003
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2008HI12      Nucl.Phys. A809, 171 (2008)

R.Higa, H.-W.Hammer, U.van Kolck

αα scattering in halo effective field theory

NUCLEAR REACTIONS ⁴H(α, α'), E=0-3.5 MeV; calculated phase shifts. Effective field theory and effective-range expansion, halo and cluster nuclei discussed.

doi: 10.1016/j.nuclphysa.2008.06.003
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2007DA18      Braz.J.Phys. 37, 75 (2007)

C.A.da Rocha, R.Higa, M.R.Robilotta

Brazilian Relativistic O(q⁴) Two-Pion Exchange Nucleon-Nucleon Potential: Parametrized Version

2007HI08      Nucl.Phys. A790, 384c (2007)

R.Higa, M.R.Robilotta, C.A.da Rocha

Two-pion exchange NN potential from Lorentz-invariant _xEFT

doi: 10.1016/j.nuclphysa.2007.03.144
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2004HI04      Phys.Rev. C 69, 034009 (2004)

R.Higa, M.R.Robilotta, C.A.da Rocha

Relativistic O(q⁴) two-pion exchange nucleon-nucleon potential: Configuration space

doi: 10.1103/PhysRevC.69.034009
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2003HI10      Phys.Rev. C 68, 024004 (2003)

R.Higa, M.R.Robilotta

Two-pion exchange nucleon-nucleon potential: 0(q⁴) relativistic chiral expansion

doi: 10.1103/PhysRevC.68.024004
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1998BA27      Phys.Rev. C57, 2142 (1998); Comment Phys.Rev. C59, 2313 (1999)

L.A.Barreiro, R.Higa, C.L.Lima, M.R.Robilotta

Peripheral Nα Scattering: A tool for identifying the two pion exchange component of the NN potential

doi: 10.1103/PhysRevC.57.2142
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