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NSR database version of April 11, 2024.

Search: Author = S.Chakravarti

Found 16 matches.

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2006KA46      Pramana 67, 363 (2006)

K.Kar, S.Chakravarti, V.R.Manfredi

Beta decay rates for nuclei with 115 < A < 140 for r-process nucleosynthesis

RADIOACTIVITY 116,117Rh, 118,120Ag, 125Cd, 128,130,131,132In, 133Sn, 132,134,136Sb, 136,137,138I, 137,138Te(β-); calculated T1/2, β-decay rates. Astrophysical implications discussed.

doi: 10.1007/s12043-006-0081-2
Citations: PlumX Metrics


1998KA34      J.Phys.(London) G24, 1641 (1998)

K.Kar, S.Chakravarti, A.Ray, S.Sarkar

Half-Lives and Presupernova Weak Interaction Rates for Nuclei Away from the Stability Line

RADIOACTIVITY 68,69Co, 68Fe, 69,71,72Ni, 71,72,73Cu, 58,59Cr, 63Mn(β-); calculated T1/2.

doi: 10.1088/0954-3899/24/8/045
Citations: PlumX Metrics


1994CH11      Phys.Lett. 323B, 253 (1994)

S.Chakravarti, B.K.Jennings

S-Wave π-Nucleus Repulsion and Dirac Phenomenology

doi: 10.1016/0370-2693(94)91215-7
Citations: PlumX Metrics


1994YE06      Phys.Rev. C50, 897 (1994)

Y.-F.Yen, B.Brinkmoller, D.Dehnhard, M.A.Franey, S.M.Sterbenz, Y.-J.Yu, B.Berman, G.R.Burleson, K.Cranston, A.Klein, G.S.Kyle, R.Alarcon, T.Averett, J.R.Comfort, J.J.Gorgen, B.G.Ritchie, J.R.Tinsley, M.Barlett, G.W.Hoffmann, K.Johnson, C.F.Moore, M.Purcell, H.Ward, A.Williams, J.A.Faucett, S.J.Greene, J.J.Jarmer, J.A.McGill, C.L.Morris, S.I.Penttila, N.Tanaka, H.T.Fortune, E.Insko, R.Ivie, J.M.O'Donnell, D.Smith, M.A.Khandaker, S.Chakravarti

Pion Elastic Scattering from Polarized 13C in the Energy Region of the P33 Resonance

NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), E=130-180 MeV; 13C(π+, π+), E=223 MeV; 13C(π-, π-), E=226 MeV; measured analyzing power A(y)(θ), σ(θ); deduced spin-flip transition quadrupole component role. Polarized, unpolarized target. DWIA calculations, optical, Δ-hole models.

doi: 10.1103/PhysRevC.50.897
Citations: PlumX Metrics


1991YE01      Phys.Rev.Lett. 66, 1959 (1991)

Y.-F.Yen, B.Brinkmoller, D.Dehnhard, S.M.Sterbenz, Y.-J.Yu, B.Berman, G.R.Burleson, K.Cranston, A.Klein, G.S.Kyle, R.Alarcon, T.Averett, J.R.Comfort, J.J.Gorgen, B.G.Ritchie, J.R.Tinsley, M.Barlett, G.W.Hoffmann, K.Johnson, C.F.Moore, M.Purcell, H.Ward, A.Williams, J.A.Faucett, S.J.Greene, J.J.Jarmer, J.A.McGill, C.L.Morris, S.Penttila, N.Tanaka, H.T.Fortune, E.Insko, R.Ivie, J.M.O'Donnell, D.Smith, M.A.Khandaker, S.Chakravarti

Asymmetry Measurement of Pion Elastic Scattering from Polarized 13C in the Energy Region of the P33 Resonance

NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), E=132-226 MeV; measured analyzing power vs θ. Polarized target.

doi: 10.1103/PhysRevLett.66.1959
Citations: PlumX Metrics


1990YE06      J.Phys.(Paris), Colloq.C-6, 587 (1990)

Y.-F.Yen, B.Brinkmoller, D.Dehnhard, S.M.Sterbenz, Y.-J.Yu, B.Berman, G.R.Burleson, K.Cranston, A.Klein, G.S.Kyle, R.Alarcon, T.Averett, J.R.Comfort, J.Gorgen, B.Ritchie, J.R.Tinsley, G.W.Hoffmann, K.Johnson, C.F.Moore, M.Purcell, H.Ward, A.Williams, J.A.Faucett, S.J.Greene, J.Jarmer, J.A.McGill, C.L.Morris, S.Penttila, N.Tanaka, H.T.Fortune, E.Insko, R.Ivie, J.M.O'Donnell, D.Smith, S.Hoibraten, M.Khandaker, S.Chakravarti

Pion Elastic Scattering from Polarized 13C in the Energy Region of the [3, 3] Resonance

NUCLEAR REACTIONS 13C(π+, π+), (π-, π-), E=114-226 MeV; measured analyzing power vs θ. Polarized target. DWIA analyses.


1988HA14      Phys.Rev. C37, 1554 (1988)

A.C.Hayes, S.Chakravarti, D.Dehnhard, P.J.Ellis, D.B.Holtkamp, L.-P.Lung, S.J.Seestrom-Morris, H.Baer, C.L.Morris, S.J.Greene, C.J.Harvey

Structure of the Low-Lying 2+ States in 14C from Inelastic Pion Scattering

NUCLEAR STRUCTURE 14C, 14N, 14O; calculated levels, B(λ). Shell model.

NUCLEAR REACTIONS 14C(π, π'), E=164 MeV; analyzed σ(θ). 14C level deduced isovector component quenching.

doi: 10.1103/PhysRevC.37.1554
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1987CH14      Phys.Rev. C35, 2197 (1987)

S.Chakravarti, D.Dehnhard, M.A.Franey, S.J.Seestrom-Morris, D.B.Holtkamp, C.L.Blilie, A.C.Hayes, C.L.Morris, D.J.Millener

Distorted-Wave Impulse Approximation and Coupled-Channels Analysis of Inelastic Pion Scattering from 18O

NUCLEAR REACTIONS 18O(π+, π+), (π+, π+'), (π-, π-), (π-, π-'), E=164 MeV; calculated σ(θ). 18O levels deduced transition densities. DWIA, coupled-channels calculations.

doi: 10.1103/PhysRevC.35.2197
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1986EL02      Phys.Rev. C34, 348 (1986)

P.J.Ellis, Q.K.K.Liu, S.Chakravarti

Spin-Flip Probability in the 12C(13C, 13C')12C(*)(2+) Reaction

NUCLEAR REACTIONS 12C(13C, 13C'), E=87 MeV; calculated σ(θ); deduced spin-flip probability, model parameters. 12C level population probability.

doi: 10.1103/PhysRevC.34.348
Citations: PlumX Metrics


1984LI14      Phys.Lett. 143B, 60 (1984)

Q.K.K.Liu, P.J.Ellis, S.Chakravarti

Spin Flip in the 24Mg(13C, 13C')24Mg(*)(2+) Inelastic Reaction

NUCLEAR REACTIONS 24Mg(13C, 13C'), E=35 MeV; calculated spin-flip probability vs θ; deduced projectile, 25Mg intermediate state excitation role. DWBA, coupled reaction channels formalisms.

doi: 10.1016/0370-2693(84)90804-9
Citations: PlumX Metrics


1984VO04      Phys.Lett. 134B, 161 (1984)

F.Vogler, R.Olszewski, M.Meyer, E.L.Mathie, G.R.Smith, E.Boschitz, S.Chakravarti, D.Dehnhard, M.Thies

Measurement of the 12C(π, π'γ)12C(2+, T = 0; 4.44 MeV) Angular Correlations: A test of the isobar-hole model

NUCLEAR REACTIONS 12C(π+, π+'), E=162 MeV; measured σ(θ), σ(θπ, θγ); deduced isobar-hole model validity.

doi: 10.1016/0370-2693(84)90662-2
Citations: PlumX Metrics


1983CH01      Phys.Rev. C27, 143 (1983)

S.Chakravarti, P.J.Ellis, B.F.Bayman, Q.K.K.Liu

Inelastic Excitation and Spin Flip in Heavy Ion Reactions

NUCLEAR REACTIONS 24Mg(13C, 13C'), E=35 MeV; analyzed σ(θ), projectile, target polarization, spin-flip probability vs θ. Coupled-channels method.

doi: 10.1103/PhysRevC.27.143
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1981HO14      Phys.Rev.Lett. 47, 216 (1981)

D.B.Holtkamp, S.J.Seestrom-Morris, S.Chakravarti, D.Dehnhard, H.W.Baer, C.L.Morris, S.J.Greene, C.J.Harvey

Strong Cancellations of Neutron and Proton Transition Amplitudes Observed in Pion Inelastic Scattering

NUCLEAR REACTIONS 14C(π+, π+'), (π-, π-'), E=164 MeV; measured σ(θ, E(π)); deduced neutron, proton transition amplitude cancellations. 14C deduced levels, J, π, configuration.

doi: 10.1103/PhysRevLett.47.216
Citations: PlumX Metrics


1980CH08      Phys.Lett. 90B, 350 (1980)

S.Chakravarti

Coupled-Channels Calculations of Intermediate Energy π+-13C Inelastic Scattering and Charge Exchange

NUCLEAR REACTIONS 13C(π+, π+'), (π+, π0), E=120-226 MeV; calculated σ(θ). Coupled-channels, momentum space.

doi: 10.1016/0370-2693(80)90946-6
Citations: PlumX Metrics


1980OL02      Phys.Rev. C21, 254 (1980)

C.Olmer, D.F.Geesaman, B.Zeidman, S.Chakravarti, T.-S.H.Lee, R.L.Boudrie, R.H.Siemssen, J.F.Amann, C.L.Morris, H.A.Thiessen, G.R.Burleson, M.J.Devereux, R.E.Segel, L.W.Swenson

Elastic and Inelastic Scattering of 162 MeV Pions by 28Si, 58Ni, and 208Pb

NUCLEAR REACTIONS 28Si, 58Ni, 208Pb(π+, π+'), (π-, π-'), E=162 MeV; measured σ(θ). Optical model, DWIA collective model analyses.

doi: 10.1103/PhysRevC.21.254
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1977LE13      Phys.Rev. C16, 273 (1977)

T.-S.H.Lee, S.Chakravarti

Second-Order Pion-Nucleus Optical Potential

NUCLEAR REACTIONS 4He(π-, π-), E=60-260 MeV; calculated σ(θ). Second order π-nucleus optical potential.

doi: 10.1103/PhysRevC.16.273
Citations: PlumX Metrics


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