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NSR database version of May 2, 2024.

Search: Author = A.J.Tropiano

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2022HI05      Phys.Rev. C 106, 024616 (2022)

M.A.Hisham, R.J.Furnstahl, A.J.Tropiano

Renormalization group evolution of optical potentials: Explorations using a "toy" model

doi: 10.1103/PhysRevC.106.024616
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2022TR02      Phys.Rev. C 106, 024324 (2022)

A.J.Tropiano, S.K.Bogner, R.J.Furnstahl, M.A.Hisham

Quasi-deuteron model at low renormalization group resolution

NUCLEAR STRUCTURE ⁹Be, ¹²C, ¹⁶O, ⁴⁰Ca, ⁵⁶Fe, ¹¹⁸Sn, ²⁰⁸Pb; calculated ratios of the pn momentum distribution over the deuteron momentum distribution as a function of relative momentum. A=6-115; calculated average Levinger constant. Similarity renormalization group (SRG) transformations applied to several nucleon-nucleon interactions - AV18, Nijmegen II, CD-Bonn, SMS N⁴LO, and GT+ N²LO. Comparison to the data extracted from experimental results.

doi: 10.1103/PhysRevC.106.024324
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2021TR08      Phys.Rev. C 104, 034311 (2021)

A.J.Tropiano, S.K.Bogner, R.J.Furnstahl

Short-range correlation physics at low renormalization group resolution

NUCLEAR STRUCTURE ¹²C, ¹⁶O, ^40,48Ca, ⁵⁶Fe, ²⁰⁸Pb; calculated proton momentum distributions for ¹²C, ¹⁶O, ⁴⁰Ca, pp+pn/nn+np pair and pp/pn+np ratios for momentum transfer q=1.5-4.0 fm^-1, percentage contributions from s-waves and selected p-waves to proton momentum distributions, short-range correlation (SRC) scaling factors and compared with experimental values. High renormalization group (RG)-resolution SRC physics incorporated at low resolution by unitary RG evolution, with weakly-correlated wave functions and simple evolved operators. Relevance to the analysis of knockout reactions such as (e, e'p) knockout reaction experiments at NIKHEF and other electron scattering facilities.

doi: 10.1103/PhysRevC.104.034311
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2020TR02      Phys.Rev. C 102, 034005 (2020)

A.J.Tropiano, S.K.Bogner, R.J.Furnstahl

Operator evolution from the similarity renormalization group and the Magnus expansion

doi: 10.1103/PhysRevC.102.034005
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2019TR06      Phys.Rev. C 99, 035201 (2019)

A.J.Tropiano, J.J.Ethier, W.Melnitchouk, N.Sato

Deep-inelastic and quasielastic electron scattering from A=3 nuclei

NUCLEAR REACTIONS ^2,3H, ³He(e, e), (e, e')E=1.1, 3.9, 4.3, 5.766, 7.257, 10.95, 14.7 GeV; analyzed Jefferson Lab E03-103 experiment data for spectral functions, quasi-elastic differential σ(E), proton and neutron smearing functions, ratio of deuteron pole contribution to the total smearing function, σ(E, θ)(³He)/σ(E, θ)(³H), σ(³He)/σ(²H), normalized yield of the Monte Carlo parameter distributions for the proton off-shell function, ratio of nuclear to nucleon structure functions, and neutron and proton off-shell functions of ³H and ³He; deduced structure of the free neutron. Monte Carlo analysis methods and the nuclear weak binding approximation. Discussed implications for the MARATHON experiment at Jefferson Lab.

doi: 10.1103/PhysRevC.99.035201
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