NSR Query Results

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NSR database version of April 26, 2024.

Search: Author = D.P.Siwakoti

Found 5 matches.

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2023LU07      Phys.Rev. C 108, 014329 (2023)

R.S.Lubna, S.N.Liddick, T.H.Ogunbeku, A.Chester, J.M.Allmond, S.Bhattacharya, C.M.Campbell, M.P.Carpenter, K.L.Childers, P.Chowdhury, J.Christie, B.R.Clark, R.M.Clark, I.Cox, H.L.Crawford, B.P.Crider, A.A.Doetsch, P.Fallon, A.Frotscher, T.Gaballah, T.J.Gray, R.Grzywacz, J.T.Harke, A.C.Hartley, R.Jain, T.T.King, N.Kitamura, K.Kolos, F.G.Kondev, E.Lamere, R.Lewis, B.Longfellow, S.Lyons, S.Luitel, M.Madurga, R.Mahajan, M.J.Mogannam, C.Morse, S.K.Neupane, W.-J.Ong, D.Perez-Loureiro, C.Porzio, C.J.Prokop, A.L.Richard, E.K.Ronning, E.Rubino, K.Rykaczewski, D.Seweryniak, K.Siegl, U.Silwal, M.Singh, D.P.Siwakoti, D.C.Smith, M.K.Smith, S.L.Tabor, T.L.Tang, V.Tripathi, A.Volya, T.Wheeler, Y.Xiao, Z.Xu

β decay of ³⁶Mg and ³⁶Al: Identification of a β-decaying isomer in ³⁶Al

RADIOACTIVITY ³⁶Mg, ³⁶Al(β^-)[from ⁹Be(⁴⁸Ca, X), E=140 MeV/nucleon for experiment at NSCL and ⁹Be(⁴⁸Ca, X), E=172.3 MeV/nucleon for experiment at FRIB]; ³⁶Al, ^36mAl(β^-)[from ³⁶Mg(β^-); measured Eγ, Iγ; deduced T_1/2. ³⁶Al; deduced levels, J, π, newly-observed β-decaying isomer, T_1/2 of the isomer. ³⁶Si; deduced levels, J, π. Comparison to shell model calculations performed with the FSU interaction using code CoSMo. For experiment at NSCL - CeBr₃ based implantation detector with position-sensitive photomultiplier tube was surrounded by 16 segmented germanium detectors (SeGa) and 15 LaBr₃ detectors. For experiment at FRIB - YSO scintillator based implantation detector segmented into 48x48 pixels was surrounded by 11 HPGe clover detectors and LaBr₃ detectors from one side and the neutron detector array VANDLE from the other side.

doi: 10.1103/PhysRevC.108.014329
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2023OG04      Phys.Rev. C 108, 034304 (2023)

T.H.Ogunbeku, B.P.Crider, S.N.Liddick, B.A.Brown, A.Chester, K.L.Childers, P.Chowdhury, E.Lamere, R.Lewis, B.Longfellow, R.S.Lubna, S.Lyons, S.K.Neupane, D.Perez-Loureiro, C.J.Prokop, A.L.Richard, U.Silwal, D.P.Siwakoti, D.C.Smith, M.K.Smith, Y.Xiao

First half-life measurement of a low-lying isomer in ³⁷Si

doi: 10.1103/PhysRevC.108.034304
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2022SH22      Nucl.Instrum.Methods Phys.Res. A1035, 166789 (2022)

O.A.Shehu, B.P.Crider, T.Ginter, C.R.Hoffman, T.H.Ogunbeku, Y.Xiao, K.L.Childers, P.Chowdhury, C.Fry, E.Lamere, R.Lewis, S.N.Liddick, B.Longfellow, S.Lyons, S.K.Neupane, D.Perez-Loureiro, C.J.Prokop, A.L.Richard, U.Silwal, D.P.Siwakoti, D.C.Smith, M.K.Smith

Experimental study of the ^34mCl beam production at intermediate energies

RADIOACTIVITY ³⁴Cl(IT), (EC) [from ⁹Be(³⁶Ar, X), E=150 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, the beam production rates and isomeric state composition. The National Superconducting Cyclotron Laboratory (NSCL).

doi: 10.1016/j.nima.2022.166789
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2022SI25      Phys.Rev. C 106, 044311 (2022)

U.Silwal, J.A.Winger, S.V.Ilyushkin, K.P.Rykaczewski, C.J.Gross, J.C.Batchelder, L.Cartegni, I.G.Darby, R.Grzywacz, A.Korgul, W.Królas, S.N.Liddick, C.Mazzocchi, A.J.Mendez, II, S.Padgett, M.M.Rajabali, D.P.Siwakoti, D.Shapira, D.W.Stracener, E.F.Zganjar

β decay of neutron-rich ⁷⁶Cu and the structure of ⁷⁶Zn

RADIOACTIVITY ⁷⁶Cu(β^-), (β^-n)[from U(p, F), E=54 MeV using UC_x target, followed by isobaric separation of fission fragments]; measured Eγ, Iγ, Eβ, βγ-coin, γγ-coin, T_1/2 of ⁷⁶Cu decay using four HPGe clover detectors at the LeRIBSS-HRIFL-ORNL facility. ⁷⁶Zn; deduced levels, J, π, β feedings, logft. ⁷⁶Cu; deduced T_1/2 of g.s. decay, no evidence for an isomeric activity proposed earlier, and no γ rays detected in ⁷⁵Zn from β^-n decay of ⁷⁶Cu. Comparison with previous experimental results, and with NUSHELLX shell-model calculations. Systematics of first excited 0+, 2+ and 4+ levels, and second 2+ in ^{66,68,70,72,74,76,78,80}Zn.

NUCLEAR STRUCTURE ⁷⁶Zn; calculated levels, J, π, B(M1), B(E2), relative γ intensities from low-lying and low-spin levels, β feedings using NUSHELLX with the jj44 model space and the JUN45 effective interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.106.044311
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2018TR07      Phys.Rev. C 98, 034309 (2018)

J.L.Tracy, J.A.Winger, B.C.Rasco, U.Silwal, D.P.Siwakoti, K.P.Rykaczewski, R.Grzywacz, J.C.Batchelder, C.R.Bingham, N.T.Brewer, L.Cartegni, A.A.Ciemny, A.Fijalkowska, C.J.Gross, C.Jost, M.Karny, K.Kolos, A.Korgul, W.Krolas, Y.Liu, M.Madurga, C.Mazzocchi, A.J.Mendez, K.Miernik, D.Miller, S.Padgett, S.V.Paulauskas, D.W.Stracener, M.Wolinska-Cichocka, M.M.Rajabali, E.F.Zganjar

Updated β-decay measurement of neutron-rich ⁷⁴Cu

RADIOACTIVITY ⁷⁴Cu(β^-)[from U(p, F), E=54 MeV at the Holifield Radioactive Ion Beam Facility HRIBF-ORNL]; measured Eγ, Iγ, βγ-coin, γγ-coin and βγγ-coin. ⁷⁴Zn; deduced levels, J, π, β feedings, logft, simulations of total absorption γ spectrum (TAGS) from the γ-ray data, and pandemonium effect in ⁷⁴Cu to ⁷⁴Zn decay. Comparison with previous experimental values, and with shell model predictions.

doi: 10.1103/PhysRevC.98.034309
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Data from this article have been entered in the XUNDL database. For more information, click here.