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NSR database version of May 24, 2024.

Search: Author = C.Grama

Found 25 matches.

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2006AS02      Phys.Rev. C 73, 055801 (2006)

M.Assuncao, M.Fey, A.Lefebvre-Schuhl, J.Kiener, V.Tatischeff, J.W.Hammer, C.Beck, C.Boukari-Pelissie, A.Coc, J.J.Correia, S.Courtin, F.Fleurot, E.Galanopoulos, C.Grama, F.Haas, F.Hammache, F.Hannachi, S.Harissopulos, A.Korichi, R.Kunz, D.LeDu, A.Lopez-Martens, D.Malcherek, R.Meunier, Th.Paradellis, M.Rousseau, N.Rowley, G.Staudt, S.Szilner, J.P.Thibaud, J.L.Weil

E1 and E2 S factors of 12C(α, γ0)160 from γ-ray angular distributions with a 4π-detector array

NUCLEAR REACTIONS 12C(α, γ), E(cm)=1.30-2.78 MeV; measured Eγ, Iγ(θ); deduced E1 and E2 astrophysical S-factors.

doi: 10.1103/PhysRevC.73.055801
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1420.


2005GR39      Rom.J.Phys. 50, 177 (2005)

N.Grama, C.Grama, I.Zamfirescu

Exotic resonant states corresponding to poles situated at the attractors in the k-plane

NUCLEAR REACTIONS 12C, 16O(12C, X), 16O(16O, X), E not given; calculated quasimolecular states energies vs spin.


2005HA16      Nucl.Phys. A752, 514c (2005)

J.W.Hammer, M.Fey, R.Kunz, J.Kiener, V.Tatischeff, F.Haas, J.L.Weil, M.Assuncao, C.Beck, C.Boukari-Pelissie, A.Coc, J.J.Correia, S.Courtin, F.Fleurot, E.Galanopoulos, C.Grama, F.Hammache, S.Harissopulos, A.Korichi, E.Krmpotic, D.Le Du, A.Lopez-Martens, D.Malcherek, R.Meunier, P.Papka, T.Paradellis, M.Rousseau, N.Rowley, G.Staudt, S.Szilner

New determination of the 12C(α, γ)16O reaction rate from γ-ray angular distribution measurements

NUCLEAR REACTIONS 12C(α, γ), E(cm)=0.89-2.8 MeV; measured σ(θ), S-factors; deduced astrophysical reaction rate.

doi: 10.1016/j.nuclphysa.2005.02.056
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1420.


2005HA48      Nucl.Phys. A758, 363c (2005)

J.W.Hammer, M.Fey, R.Kunz, J.Kiener, V.Tatischeff, F.Haas, J.L.Weil, M.Assuncao, C.Beck, C.Boukari-Pelissie, A.Coc, J.J.Correia, S.Courtin, F.Fleurot, E.Galanopoulos, C.Grama, F.Hammache, S.Harissopulos, A.Korichi, E.Krmpotic, D.Le Du, A.Lopez-Martens, D.Malcherek, R.Meunier, P.Papka, T.Paradellis, M.Rousseau, N.Rowley, G.Staudt, S.Szilner

E1 and E2 capture cross section and astrophysical reaction rate of the key reaction 12C(α, γ)16O

NUCLEAR REACTIONS 12C(α, γ), E(cm)=0.89-2.8 MeV; measured Eγ, Iγ, angular distributions; deduced S-factors for E1 and E2 capture. Eurogam and Gandi arrays, astrophysical implications discussed.

doi: 10.1016/j.nuclphysa.2005.05.066
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1420.


2003DE27      Nucl.Phys. A718, 510c (2003)

P.Demetriou, C.Grama, S.Goriely

Improved Global α-Optical Model Potential at Low Energies

NUCLEAR REACTIONS 58Ni, 70Ge, 90Zr, 144Sm, 208Pb(α, X), E(cm)=0-150 MeV; calculated optical model potential, volume integrals. 144Sm(α, γ), E(cm)=9-13.5 MeV; calculated astrophysical S-factor. A=20-200; calculated Maxwellian-averaged α-capture rates.

doi: 10.1016/S0375-9474(03)00827-3
Citations: PlumX Metrics


2002DE37      Nucl.Phys. A707, 253 (2002)

P.Demetriou, C.Grama, S.Goriely

Improved Global α-Optical Model Potentials at Low Energies

NUCLEAR REACTIONS 40Ca, 56Ni, 70Ge, 90Zr, 92Mo, 140Ce, 141Pr, 144Sm, 208Pb(α, α), E ≈ 13-32 MeV; calculated σ(θ). 37Cl, 42Ca, 56Fe, 58,62,64Ni, 70Ge, 106Cd, 144Sm(α, γ), E(cm) ≈ 2-20 MeV; 27Al, 35Cl, 45Sc, 46,48Ti, 50Cr, 51V, 54Fe, 59Co(α, n), E(cm) ≈ 4-20 MeV; 39K, 42,43,44Ca, 44Ti, 53Cr, 54Fe, 56,62Ni, 64Zn, 92Mo, 106Cd(α, p), E(cm) ≈ 4-25 MeV; 48,50Ti, 51V, 52Cr, 54Fe, 59Co, 64,68Zn, 90,94Zr, 112Cd, 147Sm(n, α), E(cm) ≈ 4-20 MeV; calculated σ. Global α-nucleus optical potential, comparisons with data.

doi: 10.1016/S0375-9474(02)00756-X
Citations: PlumX Metrics


1999AN35      Nucl.Phys. A656, 3 (1999)

C.Angulo, M.Arnould, M.Rayet, P.Descouvemont, D.Baye, C.Leclercq-Willain, A.Coc, S.Barhoumi, P.Aguer, C.Rolfs, R.Kunz, J.W.Hammer, A.Mayer, T.Paradellis, S.Kossionides, C.Chronidou, K.Spyrou, S.Degl'Innocenti, G.Fiorentini, B.Ricci, S.Zavatarelli, C.Providencia, H.Wolters, J.Soares, C.Grama, J.Rahighi, A.Shotter, M.Lamehi-Rachti

A Compilation of Charged-Particle Induced Thermonuclear Reaction Rates

COMPILATION 1H(p, e+ν), 2H, 6,7Li, 7,9Be, 10,11B, 12,13C, 13,14,15N, 16,17,18O, 19F, 20,21,22Ne, 22,23Na, 24,25,26Mg, 26,27Al, 28Si(p, γ), 2H(d, γ), (d, p), 2,3H(d, n), 2,3H, 3He, 7Li, 7Be, 12C, 14,15N, 16,18O, 20,22Ne(α, γ), 3He(3He, 2p), 6,7Li, 9Be, 10,11B, 14,15N, 17,18O, 19F, 20Ne, 23Na, 24Mg, 27Al(p, α), 7Li, 9Be, 13C, 14N, 17,18O, 21,22Ne, 23Na, 25,26Mg, 27Al(α, n), 9Be, 11B, 13C, 14,15N, 19F, 23Na(p, n), 9Be(p, d), E < 10 MeV; compiled, analyzed σ, S-factors; calculated astrophysical reaction rates vs T9. Analytical approximations.

doi: 10.1016/S0375-9474(99)00030-5
Citations: PlumX Metrics


1997GR10      Nucl.Phys. A621, 315c (1997)

C.Grama, N.Grama, I.Zamfirescu

New Class of Resonant States. Possible Application to Astrophysics

doi: 10.1016/S0375-9474(97)00262-5
Citations: PlumX Metrics


1996PI15      Nucl.Instrum.Methods Phys.Res. B118, 186 (1996)

N.Piel, W.H.Schulte, M.Berheide, H.W.Becker, L.Borucki, C.Grama, M.Mehrhoff, C.Rolfs

Efficient γ-Ray Detection in Ion Beam Analysis

NUCLEAR REACTIONS 29Si(p, γ), E=325, 420 MeV; measured Eγ, Iγ; deduced resonance yields.

doi: 10.1016/0168-583X(95)01453-5
Citations: PlumX Metrics


1995GR18      Z.Phys. A353, 167 (1995)

C.Grama, N.Grama, I.Zamfirescu

Approximate Penetration Factor and Reduced Width for a Diffuse Edge Well

doi: 10.1007/BF01295894
Citations: PlumX Metrics


1994GR26      Ann.Phys.(New York) 232, 243 (1994)

C.Grama, N.Grama, I.Zamfirescu

New Class of Resonant States for Potentials with Coulomb Barrier: Quasimolecular states

NUCLEAR REACTIONS 24Mg, 28Si, 12C(12C, X), (16O, X), 16O(16O, X), 24Mg(24Mg, X), E not given; 28Si, 20Ne(16O, X), E not given; calculated quasimolecular state excitation. Extended S-matrix poles identification global method.

doi: 10.1006/aphy.1994.1054
Citations: PlumX Metrics


1993IL01      Nucl.Phys. A559, 83 (1993)

C.Iliadis, J.Gorres, J.G.Ross, K.W.Scheller, M.Wiescher, C.Grama, Th.Schange, H.P.Trautvetter, H.C.Evans

Explosive Hydrogen Burning of 31P

NUCLEAR REACTIONS, ICPND 31P(p, γ), (p, α), E=160-370 keV; 28Si(α, γ), E=2.4-2.6 MeV; measured γ yield vs E; deduced stellar reaction rates, temperature dependence. 32S deduced proton thershold state features.

doi: 10.1016/0375-9474(93)90181-V
Citations: PlumX Metrics


1992GR15      Rev.Roum.Phys. 37, 161 (1992)

C.Grama, N.Grama, I.Zamfirescu

Quasimolecular States - A Particular Case of a New Class Resonant States

NUCLEAR REACTIONS 20Ne(α, α), 24Mg, 28Si, 16O, 12C(12C, 12C), 28Si, 16O(16O, 16O), E not given; calculated quasimolecular state excitation energies; deduced new classes of poles of S-matrix. Central potential, nonrelativistic scattering, Riemamann surfaces.


1989BR14      Z.Phys. A333, 71 (1989)

I.M.Brancus, I.Berceanu, A.Buta, A.Demian, C.Grama, I.Lazar, I.Mihai, M.Petrascu, V.Simion, A.Constantinescu

Dynamical Analysis of Deep Inelastic Interactions in a Light Composite System (19F + 24Mg) at About 1.3 MeV/u Above the Coulomb Barrier

NUCLEAR REACTIONS 24Mg(19F, X), E=72 MeV; measured σ(fragment θ, E) for fragment Z ≤ 8; calculated σ(θ, A); deduced reaction dynamics. Dynamical model analysis.


1987BE55      Rev.Roum.Phys. 32, 961 (1987)

I.Berceanu, I.Brancus, A.Buta, A.Demian, C.Grama, I.Lazar, I.Mihai, M.Petrascu, M.Petrovici, V.Simion, K.V.Karadjev, A.A.Korsheninnikov, I.B.Mazurov, S.B.Sakuta, A.A.Ogloblin

Deep Inelastic Interaction in the System 14N(110 MeV) + 24Mg

NUCLEAR REACTIONS 24Mg(14N, X), E=110 MeV; measured σ(fragment θ) vs fragment kinetic energy for Z=5-8; deduced reaction mechanism.


1987BR34      Rev.Roum.Phys. 32, 733 (1987)

I.M.Brancus, A.Constantinescu, I.Berceanu, A.Buta, A.Demian, C.Grama, I.Lazar, I.Mihai, M.Petrascu, V.Simion

Statistical Analysis of Deep Inelastic Interactions in the 40Ar(300 MeV) + 197Au System Including Mass Transfer

NUCLEAR REACTIONS 197Au(40Ar, X), E=300 MeV; calculated fragment kinetic energy vs θ. Statistical analysis.


1986BU05      Rev.Roum.Phys. 31, 29 (1986)

A.Buta, I.Berceanu, I.Brancus, A.Demian, C.Grama, I.Lazar, I.Mihai, M.Petrascu, M.Petrovici, V.Simion

The Energy Dependence of the Multinucleon Transfer Processes for the 19F + 24Mg System in the Energy Range E = (72.0-87.9) MeV

NUCLEAR REACTIONS, ICPND 24Mg(19F, X)4He/Li/Be/B/C/N/O/Ne, E=72-87.9 MeV; measured σ(fragment θ, E) for fragment Z=6, 7, 8, 9, 5; deduced residual production σ vs Z.


1986PE11      Rev.Roum.Phys. 31, 311 (1986)

M.Petrascu, I.Berceanu, I.Brancus, A.Buta, A.Demian, C.Grama, I.Lazar, I.Mihai, M.Petrovici, V.Simion

Deep Inelastic Interaction in the System 16O(64MeV) + 24Mg

NUCLEAR REACTIONS 24Mg(16O, X), E=64 MeV; measured σ(fragment, E) for Z=5, 6, 8, 10; deduced Q, transfer channel odd-even effect. ΔE-E telescope. Sum-rule model.


1985BR04      Z.Phys. A320, 443 (1985)

I.M.Brancus, I.Berceanu, A.Buta, C.Grama, I.Lazar, I.Mihai, M.Petrascu, V.Simion, A.Constantinescu

Classical and Statistical Analysis of 40Ar(300 MeV) + 197Au Deep Inelastic Interaction

NUCLEAR REACTIONS 197Au(40Ar, X), E=300 MeV; calculated σ(fragment θ, E), interaction potential, deflection function. Deep inelastic collision, classical, statistical analyses.


1984PE19      Rev.Roum.Phys. 29, 689 (1984)

M.Petrascu, I.Berceanu, I.Brancus, A.Buta, C.Grama, I.Lazar, I.Mihai, M.Petrovici, V.Simion

Deep Inelastic Collisions in the System 19F + 24Mg at 72 MeV Incident Energy of 19F Projectiles

NUCLEAR REACTIONS 24Mg(19F, X), E=72 MeV; measured σ(fragment θ, Z, E) vs total kinetic energy; deduced reaction mechanism.


1982AB08      Rev.Roum.Phys. 27, 881 (1982)

M.A.Abou-Leila, I.Berceanu, C.Borcea, I.M.Brancus, A.Buta, A.Constantinescu, K.Galawez, C.Grama, S.U.El-Kameesy, I.Lazar, I.Mihai, M.Petrascu, M.Petrovici, V.Simion, G.Voiculescu

A Method for the Absolute Measurement of the Thermal Neutron Flux Based on the (4π(α-7Li)-γ) Coincidence Technique

NUCLEAR REACTIONS 10B(n, α), E=thermal; measured α7Li-, αγ-coin; deduced improved accuracy in thermal neutron flux measurements. Ge(Li) spectrometer, 4π pulse ionization chamber.


1982BE58      Rev.Roum.Phys. 27, 463 (1982)

I.Berceanu, I.Brancus, A.Buta, C.Grama, I.Lazar, I.Mihai, M.Petrascu, N.Simion, A.Constantinescu, A.Demian

The Interpretation by Regge Formalism of the Anomalous Large Cross Section at Backward Angles for Elastic Scattering of 16O on 40Ca at E(lab) = 50 MeV

NUCLEAR REACTIONS 40Ca(16O, 16O), E=50 MeV; calculated σ(θ). Regge formalism.


1981AB07      Fizika(Zagreb) 13, Suppl.No.1, 39 (1981)

M.A.Abou-Leila, I.Brancus, A.Buta, C.Grama, S.U.El-Kameesy, I.Lazar, I.Mihai, M.Petrascu, M.Petrovici, V.Simion

Resonant Behaviour of 24Mg(12C, α)32S Reaction in the Energy Range 21.8-26.0 MeV

NUCLEAR REACTIONS 24Mg(12C, α), E=21.8-26 MeV; measured σ(θ=5°, E); deduced channel correlation effect. Elastic scattering data analysis input.


1981VI03      Pisma Zh.Eksp.Teor.Fiz. 33, 233 (1981); JETP Lett.(USSR) 33, 222 (1981)

A.A.Vinogradov, Yu.A.Glukhov, V.I.Dukhanov, I.B.Mazurov, B.G.Novatsky, A.A.Ogloblin, V.V.Paramonov, S.B.Sakuta, D.N.Stepanov, A.G.Trunov, A.A.Tsvetkov, C.Grama, M.Mihai

Observation of a Giant Gamow-Teller Resonance in the Reaction 90Zr(6Li, 6He)90Nb

NUCLEAR REACTIONS 13C, 90Zr(6Li, 6He), E=93 MeV; measured σ(E(6He), θ). 90Nb deduced IAS, M1, Gamow-Teller resonances.


1980BR34      Rev.Roum.Phys. 25, 1095 (1980)

I.M.Brancus, A.Buta, C.Grama, I.Lazar, I.Mihai, M.Petrascu, V.Simion, A.Constantinescu, C.Borcea

Analysis by Regge Parametrization of the 16O Scattering Cross Section on 64Ni

NUCLEAR REACTIONS 64Ni(16O, 16O), E=56 MeV; analyzed σ(θ); deduced strong absorption effects. Regge parametrization.


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