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NSR database version of April 11, 2024.

Search: Author = R.Giri

Found 13 matches.

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2024PA09      Phys.Rev. C 109, 015802 (2024)

S.N.Paneru, C.R.Brune, D.Connolly, D.Odell, M.Poudel, D.R.Phillips, J.Karpesky, B.Davids, C.Ruiz, A.Lennarz, U.Greife, M.Alcorta, R.Giri, M.Lovely, M.Bowry, M.Delgado, N.E.Esker, A.B.Garnsworthy, C.Seeman, P.Machule, J.Fallis, A.A.Chen, F.Laddaran, A.Firmino, C.Weinerman

Elastic scattering of 3He+4He with the SONIK scattering chamber

doi: 10.1103/PhysRevC.109.015802
Citations: PlumX Metrics


2022JO04      Phys.Rev. C 106, L011603 (2022)

J.E.Johnstone, V.Singh, R.Giri, S.Hudan, J.Vadas, R.T.deSouza, D.Ackermann, A.Chbihi, Q.Hourdille, A.Abbott, C.Balhoff, A.Hannaman, A.B.McIntosh, M.Sorensen, Z.Tobin, A.Wakhle, S.J.Yennello, M.A.Famiano, K.W.Brown, C.Santamaria, J.Lubian, H.O.Soler, B.V.Carlson

Proton and neutron exchange as a prelude to fusion at near-barrier energies

NUCLEAR REACTIONS 39,41,45,47K(28Si, X), 36,44Ar(28Si, X), E(cm)=34-46 MeV; measured reaction products, evaporation residues; deduced fusion excitation functions, fusion σ(E), potential energy surfaces for binary fragments. Comparison to Dirac-Hartree-Bogoliubov (DHB) calculations for the ground state densities used in Sao Paulo fusion model. Radioactive beams of K and Ar ions were produced by the coupled cyclotron facility at MSU-NSCL and thermalized in a linear gas stopper before being reaccelerated by the ReA3 linac.

doi: 10.1103/PhysRevC.106.L011603
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2022PS02      Phys.Rev.Lett. 129, 162701 (2022)

A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams

Direct Measurement of Resonances in 7Be(α, γ)11C Relevant to νp-Process Nucleosynthesis

NUCLEAR REACTIONS 4He(7Be, γ)11C, E not given; measured reaction products, Eγ, Iγ; deduced resonance energies and strengths, thermonuclear reaction rates. Comparison with available data. DRAGON recoil separator, TRIUMF.

doi: 10.1103/PhysRevLett.129.162701
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022PS03      Phys.Rev. C 106, 045805 (2022)

A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams

First inverse kinematics measurement of resonances in 7Be(α, γ)11C relevant to neutrino-driven wind nucleosynthesis using DRAGON

NUCLEAR REACTIONS 4He(7Be, γ), E=351-464 keV/nucleon; measured reaction products, Eγ, Iγ, γ-sum, (particle)γ-coin; deduced 1110-, 1115- and 876-keV resonances strength, thermonuclear reaction rate (T=0.1-10 GK), astrophysical S-factor. Discussed the impact of newly determined rates on studies of nucleosynthesis in neutrino-driven winds. Helium-filled windowless gas target surrounded by γ-ray array of 30 BGO scintillator crystals at DRAGON recoil separator (TRIUMF).

doi: 10.1103/PhysRevC.106.045805
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022VA04      Phys.Rev. C 105, 055802 (2022)

B.Vande Kolk, K.T.Macon, R.J.deBoer, T.Anderson, A.Boeltzig, K.Brandenburg, C.R.Brune, Y.Chen, A.M.Clark, T.Danley, B.Frentz, R.Giri, J.Gorres, M.Hall, S.L.Henderson, E.Holmbeck, K.B.Howard, D.Jacobs, J.Lai, Q.Liu, J.Long, K.Manukyan, T.Massey, M.Moran, L.Morales, D.Odell, P.O'Malley, S.N.Paneru, A.Richard, D.Schneider, M.Skulski, N.Sensharma, C.Seymour, G.Seymour, D.Soltesz, S.Strauss, A.Voinov, L.Wustrich, M.Wiescher

Investigation of the 10B (p, α)7Be reaction from 0.8 to 2.0 MeV

NUCLEAR REACTIONS 10B(p, α), (p, p), E=0.8-2.0 MeV; measured Eα, Iα, Ep, Ip; deduced σ(θ), σ(E) S-factor, resonance parameters of 10B+p system - energy, spin, partial (p0, α0, α1) and total width. 10B(p, γ), E=0 .1-2.0 MeV; deduced σ(θ). 11C; deduced levels, J, π. R-matrix analysis. Measurements were made at the University of Notre Dame (UND) Nuclear Science Laboratory (NSL) using a degrader foil method, while those at the Edwards AcceleratorLaboratory at Ohio University (OU) were performed using the time-of-flight (ToF)technique. Comparison with other experimental data.

doi: 10.1103/PhysRevC.105.055802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2767. Data from this article have been entered in the XUNDL database. For more information, click here.


2021LO09      Phys.Rev. C 103, 055801 (2021)

M.Lovely, A.Lennarz, D.Connolly, M.Williams, M.Alcorta, A.A.Chen, B.Davids, N.E.Esker, C.Fry, S.A.Gillespie, R.Giri, U.Greife, A.Hussein, D.Hutcheon, J.Karpesky, L.Kroll, J.Liang, P.D.O'Malley, S.Paneru, A.Psaltis, C.Ruiz, A.C.Shotter, for the DRAGON Collaboration

Proton capture on 34S in the astrophysical energy regime of O-Ne novae

NUCLEAR REACTIONS 1H(34S, γ)35Cl, E=518.6 keV/nucleon from the ISAC facility of TRIUMF; measured recoils, Eγ, Iγ, TOF using DRAGON separator having four components, windowless gas target, BGO array for γ rays, two stage electromagnetic separator, and heavy ion detector system of double-sided silicon strip detector (DSSSD) and an ionization chamber (IC) for recoils. 35Cl; deduced energies of resonances, resonance strengths, astrophysical reaction rates. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.103.055801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2629. Data from this article have been entered in the XUNDL database. For more information, click here.


2021PS01      Nucl.Instrum.Methods Phys.Res. A987, 164828 (2021)

A.Psaltis, A.A.Chen, D.S.Connolly, B.Davids, G.Gilardy, R.Giri, U.Greife, W.Huang, D.A.Hutcheon, J.Karpesky, A.Lennarz, J.Liang, M.Lovely, S.N.Paneru, C.Ruiz, G.Tenkila, M.Williams

Beyond the acceptance limit of DRAGON: The case of the 6Li(α, γ)10B reaction

NUCLEAR REACTIONS 6Li(α, γ), E=3.6 MeV; measured reaction products, TOF, Eγ, Iγ; deduced Q-value, resonance parameters. Comparison with available data.

doi: 10.1016/j.nima.2020.164828
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2592. Data from this article have been entered in the XUNDL database. For more information, click here.


2021SI29      Phys.Rev. C 104, L041601 (2021)

V.Singh, J.E.Johnstone, R.Giri, S.Hudan, J.Vadas, R.T.deSouza, D.Ackermann, A.Chbihi, Q.Hourdille, A.Abbott, C.Balhoff, A.Hannaman, A.B.McIntosh, M.Sorensen, Z.Tobin, A.Wakhle, S.J.Yennello, M.A.Famiano, K.W.Brown, C.Santamaria, J.Lubian, H.O.Soler, B.V.Carlson

Impact of shell structure on the fusion of neutron-rich mid-mass nuclei

NUCLEAR REACTIONS 16O(39K, X), (41K, X), (45K, X), (47K, X), (36Ar, X), (44Ar, X), E(cm)=23-33 MeV, [secondary radioactive 45,47K, 44Ar beams from 9Be(48Ca, X), E=140 MeV/nucleon, followed by separation of ions using A1900 at NSCL-MSU facility]; measured reaction products, fusion σ(E); deduced reduced fusion excitation functions; investigated influence of shell effects on fusion of mid-mass nuclei. Comparison of experimental fusion cross sections with Sao Paulo model using Dirac-Hartree-Bogoliubov (DHB) densities, and densities from systematics; deduced over prediction of fusion experimental σ for closed-shell nuclei using DHB densities. 39,41,45,47K, 36,44Ar; predicted DHB density distributions of protons and neutrons. Relevance to importance of understanding shell effects at the saddle point for accurate description of fusion process.

doi: 10.1103/PhysRevC.104.L041601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2698.


2021VO11      Phys.Rev. C 104, 015805 (2021)

A.V.Voinov, K.Brandenburg, C.R.Brune, R.Giri, S.M.Grimes, T.Massey, Z.Meisel, S.N.Paneru, A.L.Richard, G.Perdikakis, A.Falduto

Reduction of the neutron imaginary potential off the stability line and its possible impact on neutron capture rates

NUCLEAR REACTIONS 48Ca(11B, X)59Mn*, E=21.8 MeV; measured E(n), I(n), E(p), I(p), Eα, Iα emitted by the compound nucleus 59Mn using ΔE-E Si detector telescope at the Edwards Accelerator Laboratory; analyzed optical model potentials (OMP) with their original parametrizations as well as with adjusted isovector imaginary components using EMPIRE code and BSFG Egidy level-density parametrization; deduced importance of inclusion of isovector component of the imaginary potential; discussed consequences for astrophysical reaction-rate calculations.

doi: 10.1103/PhysRevC.104.015805
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2654.


2020GA12      Phys.Rev. C 101, 055805 (2020)

P.Gastis, G.Perdikakis, J.Dissanayake, P.Tsintari, I.Sultana, C.R.Brune, T.N.Massey, Z.Meisel, A.V.Voinov, K.Brandenburg, T.Danley, R.Giri, Y.Jones-Alberty, S.Paneru, D.Soltesz, S.Subedi

Constraining the destruction rate of 40K in stellar nucleosynthesis through the study of the 40Ar(p, n)40K reaction

NUCLEAR REACTIONS 40Ar(p, n)40K, E(cm)=3.3-3.9 MeV; measured In, Eγ, Iγ, and differential σ(θ, E) using neutron time-of-flight technique with plastic scintillators for neutron detection and LaBr3 scintillator for γ detection at the Edwards Accelerator Laboratory of Ohio University; deduced total σ(E), and partial σ(E) populating discrete states. 40K(n, p), E(cm)=3.3-3.9 MeV; deduced thermonuclear reaction rates for the forward and reverse reactions. Comparison with Hauser-Feshbach calculations using the statistical model code TALYS, and with theoretical rates in the REACLIB library. Relevance to yield of 40K in nucleosynthesis, and impact on galactic chemical evolution models for the study of properties of exoplanets.

doi: 10.1103/PhysRevC.101.055805
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2570.


2020VO12      Phys.Rev. C 102, 064005 (2020)

A.V.Voinov, S.Akhtar, N.Alanazi, K.Brandenburg, C.R.Brune, T.W.Danley, S.Dhakal, R.Giri, T.N.Massey, S.N.Paneru, C.E.Parker, A.L.Richard, C.J.Forrest, D.Schneider, G.Grim

Cross section of neutrons from the 2H(n, 2n) reaction at En = 15 MeV

NUCLEAR REACTIONS 16O(n, n), 2H(n, 2n), E=15 MeV; measured reaction products, En, In; deduced cross sections using H2O and D2O targets and NE213 liquid scintillator at the Swinger neutron facility of Edwards Accelerator Laboratory. Comparison with models based on phase-space approximation used in the ENDF/B-VIII.0 data library and in the MCNP neutron transport code, and using the rigorous model based on Faddeev equations.

doi: 10.1103/PhysRevC.102.064005
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 dataset14681.


2019PA21      Phys.Rev. C 99, 045807 (2019)

S.N.Paneru, C.R.Brune, R.Giri, R.J.Livesay, U.Greife, J.C.Blackmon, D.W.Bardayan, K.A.Chipps, B.Davids, D.S.Connolly, K.Y.Chae, A.E.Champagne, C.Deibel, K.L.Jones, M.S.Johnson, R.L.Kozub, Z.Ma, C.D.Nesaraja, S.D.Pain, F.Sarazin, J.F.Shriner, D.W.Stracener, M.S.Smith, J.S.Thomas, D.W.Visser, C.Wrede

s-wave scattering lengths for the 7Be + p system from an R-matrix analysis

NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), E=4-27 MeV; 12C(7Be, 7Be), E=7, 14 meV; measured scattered ions, differential σ(θ) using (CH2)n target and segmented Silicon Detector Array (SIDAR) for scattered ion detection at ORNL-HRIBF; deduced s-wave scattering lengths, R-matrix analysis of elastic and inelastic scattering data; analyzed cross-section data from Louvain-la-Neuve reported in 2003An06 reference. Comparison with previous experimental values, and optical model calculations. Relevance to astrophysical S factor for 7Be(p, γ) reaction. 8B; verified levels at 1.9, 2.21 and 9.0 MeV.

doi: 10.1103/PhysRevC.99.045807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2695. Data from this article have been entered in the XUNDL database. For more information, click here.


2019VO05      Phys.Rev. C 99, 054609 (2019)

A.V.Voinov, T.Renstrom, D.L.Bleuel, S.M.Grimes, M.Guttormsen, A.C.Larsen, S.N.Liddick, G.Perdikakis, A.Spyrou, S.Akhtar, N.Alanazi, K.Brandenburg, C.R.Brune, T.W.Danley, S.Dhakal, P.Gastis, R.Giri, T.N.Massey, Z.Meisel, S.Nikas, S.N.Paneru, C.E.Parker, A.L.Richard

Level densities of 74, 76Ge from compound nuclear reactions

NUCLEAR STRUCTURE 68,70Zn(7Li, p), E=16 MeV; measured evaporated proton spectra from 2-25 MeV, σ, yields using silicon ΔE-E telescope at the Edwards tandem accelerator laboratory, Athens, Ohio. 74,76Ge; deduced nuclear level densities. Comparison with theoretical calculations using coupled-channel model of the EMPIRE code, GCM-RIPL-global, and BSFG-RIPL-global density models.

doi: 10.1103/PhysRevC.99.054609
Citations: PlumX Metrics


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