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NSR database version of March 18, 2024.

Search: Author = A.Signoracci

Found 20 matches.

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2017VO05      Phys.Rev. C 96, 024305 (2017)

P.Voss, T.E.Drake, K.Starosta, C.Andreoiu, R.Ashley, G.C.Ball, P.C.Bender, A.Chester, R.Churchman, D.S.Cross, A.B.Garnsworthy, G.Hackman, B.Hadinia, R.Henderson, B.Jigmeddorj, S.Ketelhut, R.Krucken, A.T.Laffoley, K.G.Leach, D.Miller, R.Orlandi, C.J.Pearson, J.Pore, M.M.Rajabali, E.T.Rand, C.E.Svensson, E.Tardiff, C.Unsworth, Z.-M.Wang, A.Signoracci

Doppler-shift attenuation lifetime measurement of the 36Ar 2+1 level

NUCLEAR REACTIONS 12C(36Ar, 36Ar'), E=63 MeV; measured Eγ, (12C)γ-coin, half-life of the first 2+ state by Doppler-shift attenuation method (DSAM) following low-energy Coulomb excitation using TIGRESS spectrometer and PIN diode detectors at TRIUMF-ISAC facility. Carbon target backed with 197Au. 36Ar; deduced level, B(E2) for the first 2+ state, and compared with previous experimental data, and with shell-model calculations using USDB interaction.

doi: 10.1103/PhysRevC.96.024305
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Data from this article have been entered in the XUNDL database. For more information, click here.


2016JA03      Phys.Rev. C 94, 011301 (2016)

G.R.Jansen, M.D.Schuster, A.Signoracci, G.Hagen, P.Navratil

Open sd-shell nuclei from first principles

NUCLEAR STRUCTURE 18,19,20,21,22,23,24,25,26,27,28,29,30Ne, 20,21,22,23,24,25,26,27,28,29,30Mg; calculated ground-state energies. 24F, 19,20,24,25,26,27Ne, 22,23,24,25,26Mg; calculated low-spin levels, J, π, B(E2) strengths. Calculations are based on an extension of ab initio coupled-cluster effective interaction (CCEI) method. Comparison with experimental data taken from the ENSDF database.

doi: 10.1103/PhysRevC.94.011301
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2015SI12      Phys.Rev. C 91, 064320 (2015)

A.Signoracci, T.Duguet, G.Hagen, G.R.Jansen

Ab initio Bogoliubov coupled cluster theory for open-shell nuclei

NUCLEAR STRUCTURE 16,18,20O, 18Ne, 20Mg; calculated ground-state energies and the cluster amplitudes at the singles and doubles level (BCCSD), algebraically and diagrammatically. Ab initio Bogoliubov coupled cluster (BCC) theory for open shell nuclei.

doi: 10.1103/PhysRevC.91.064320
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2015XU13      Phys.Rev. C 92, 024324 (2015)

X.-D.Xu, S.-S.Zhang, A.J.Signoracci, M.S.Smith, Z.P.Li

Analytical continuation from bound to resonant states in the Dirac equation with quadrupole-deformed potentials

NUCLEAR STRUCTURE 37Mg; calculated energies and widths of the neutron resonant states, energy and width of neutron 3/2[301] and 7/2[413] resonant states as functions of the coupling constant, single-neutron Nilsson levels as function of deformation β. Halo nucleus. Analytical continuation of the coupling constant (ACCC) method on the basis of the Dirac coupled-channel equations with a deformed Woods-Saxon potential. Comparison with scattering phase shift (SPS) method.

doi: 10.1103/PhysRevC.92.024324
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2014HE05      Phys.Rev. C 89, 054305 (2014)

T.M.Henderson, G.E.Scuseria, J.Dukelsky, A.Signoracci, T.Duguet

Quasiparticle coupled cluster theory for pairing interactions

doi: 10.1103/PhysRevC.89.054305
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2014JA14      Phys.Rev.Lett. 113, 142502 (2014)

G.R.Jansen, J.Engel, G.Hagen, P.Navratil, A.Signoracci

Ab Initio Coupled-Cluster Effective Interactions for the Shell Model: Application to Neutron-Rich Oxygen and Carbon Isotopes

NUCLEAR STRUCTURE 19,20,21,22,23,24O, 17,18,19,20,21,22C; calculated energy levels, J, π. Comparison with available data.

doi: 10.1103/PhysRevLett.113.142502
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2013CO23      Phys.Rev. C 88, 044311 (2013)

A.Corsi, J.-P.Delaroche, A.Obertelli, T.Baugher, D.Bazin, S.Boissinot, F.Flavigny, A.Gade, M.Girod, T.Glasmacher, G.F.Grinyer, W.Korten, J.Libert, J.Ljungvall, S.McDaniel, A.Ratkiewicz, A.Signoracci, R.Stroberg, B.Sulignano, D.Weisshaar

Collectivity of light Ge and As isotopes

NUCLEAR REACTIONS 9Be, 197Au(66Ge, 66Ge'), (67As, 67As'), (68Se, 67As), [secondary cocktail beam of 66Be, 67As, 68Se from 9Be(78Kr, X), E=150 meV/nucleon primary reaction], E=70 MeV/nucleon; measured particle spectra, Eγ, Iγ, (particle)γ-coin, Coulomb excitation and inelastic scattering cross sections at NSCL, MSU facility. SeGA array for γ-ray detection. 66Ge, 67As; deduced levels, J, π, B(E2). Comparison with shell-model calculations, and with earlier experimental results.

NUCLEAR STRUCTURE 64,66,68,70,72Ge; calculated potential energy surface (PES) contours in (β, γ) plane, spectroscopic quadrupole moments, staggering parameter and branching ratios using shell model for first and second 2+ states. 65,67,69As; calculated levels, J, π, spectroscopic quadrupole moments of low-lying negative-parity states using shell model. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.044311
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Data from this article have been entered in the XUNDL database. For more information, click here.


2013FL01      Phys.Rev.Lett. 110, 122503 (2013)

F.Flavigny, A.Gillibert, L.Nalpas, A.Obertelli, N.Keeley, C.Barbieri, D.Beaumel, S.Boissinot, G.Burgunder, A.Cipollone, A.Corsi, J.Gibelin, S.Giron, J.Guillot, F.Hammache, V.Lapoux, A.Matta, E.C.Pollacco, R.Raabe, M.Rejmund, N.de Sereville, A.Shrivastava, A.Signoracci, Y.Utsuno

Limited Asymmetry Dependence of Correlations from Single Nucleon Transfer

NUCLEAR REACTIONS 2H(14O, t), (14O, 3He), E=17.8 MeV/nucleon; measured reaction products; deduced σ(θ) for transfer and elastic scattering, reduction factors. Comparison with shell model and ab initio calculations.

doi: 10.1103/PhysRevLett.110.122503
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO2149. Data from this article have been entered in the XUNDL database. For more information, click here.


2012FL02      Phys.Rev.Lett. 108, 252501 (2012)

F.Flavigny, A.Obertelli, A.Bonaccorso, G.F.Grinyer, C.Louchart, L.Nalpas, A.Signoracci

Nonsudden Limits of Heavy-Ion Induced Knockout Reactions

NUCLEAR REACTIONS 9Be(16C, p), (16C, n), E=75 MeV/nucleon; 9Be(14O, p), (14O, n), E=53 MeV/nucleon; measured reaction products, Eγ, Iγ. 13N, 13O, 15B, 15C; deduced energy levels, J, π, σ, spectroscopic factors. Comparison with available data.

doi: 10.1103/PhysRevLett.108.252501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1934.


2012ME05      Phys.Rev.Lett. 108, 122501 (2012)

R.Meharchand, R.G.T.Zegers, B.A.Brown, Sam M.Austin, T.Baugher, D.Bazin, J.Deaven, A.Gade, G.F.Grinyer, C.J.Guess, M.E.Howard, H.Iwasaki, S.McDaniel, K.Meierbachtol, G.Perdikakis, J.Pereira, A.M.Prinke, A.Ratkiewicz, A.Signoracci, S.Stroberg, L.Valdez, P.Voss, K.A.Walsh, D.Weisshaar, and R.Winkler

Probing Configuration Mixing in 12Be with Gamow-Teller Transition Strengths

NUCLEAR REACTIONS Li(12B, 7Be)12Be, E=80 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), B(GT) transition strength, level energies, J, π. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.108.122501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1910. Data from this article have been entered in the XUNDL database. For more information, click here.


2011RI03      Prog.Part.Nucl.Phys. 66, 283 (2011)

W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher

Shell-model studies of the rp reaction 25Al(p, γ)26Si

NUCLEAR REACTIONS 25Al(p, γ)26Si, E<150 keV; calculated reaction rates and uncertainties.

NUCLEAR STRUCTURE 26Si; calculated energy levels, J, π, spectroscopic factors. USDA and USDB interaction.

doi: 10.1016/j.ppnp.2011.01.021
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2011RI06      Phys.Rev. C 83, 065803 (2011)

W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher

Properties of 26Mg and 26Si in the sd shell model and the determination of the 25Al(p, γ)26Si reaction rate

NUCLEAR REACTIONS 25Al(p, γ)26Si, E not given; calculated resonance-capture rate, Γg, Γp using sd-shell model with USD, USDA and USDB Hamiltonians. Comparison with experimental data. Astrophysical implications for novae and x-ray bursts.

NUCLEAR STRUCTURE 26Si, 26Mg; calculated level energies, resonance energies, J, π, Γg, Γp, spectroscopic factors using sd-shell model and isobaric-mass-multiplet equation (IMME). Comparison with experimental data.

doi: 10.1103/PhysRevC.83.065803
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2011RI09      Phys.Rev. C 84, 059802 (2011)

W.A.Richter, B.A.Brown, A.Signoracci, M.Wiescher

Reply to "Comment on 'Properties of 26Mg and 26Si in the sd shell model and the determination of the 25Al(p, γ)26Si reaction rate'"

NUCLEAR REACTIONS 25Al(p, γ)26Si; analyzed and revised reaction rates using updated level and resonance energy.

doi: 10.1103/PhysRevC.84.059802
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2011SI05      Phys.Rev. C 83, 024315 (2011)

A.Signoracci, B.A.Brown, M.Hjorth-Jensen

Renormalized interactions with a realistic single-particle basis

NUCLEAR STRUCTURE 34Si, 40Ca; calculated single-particle energies, First-order, particle-particle ladder, core-polarization, four-particle two-hole, and total matrix elements using Skxtb interaction and harmonic oscillator basis. 36,38Si; calculated levels, J, π. Shell-model using Harmonic oscillator, core polarization and Skyrme Hartree-Fock calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.024315
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2011SI20      Phys.Rev. C 84, 031301 (2011)

A.Signoracci, B.A.Brown

Effects of isospin mixing in the A = 32 quintet

NUCLEAR STRUCTURE 32Si, 32P, 32S, 32Cl, 32Ar; analyzed isobaric mass multiplet equation (IMME) for A=32 isospin quintet; calculated IMME coefficients, energy shifts. 32S; calculated energies of 0+ states using USDB interaction.

RADIOACTIVITY 32Cl(p); calculated widths and spectroscopic factors for isospin-forbidden proton decay using Universal sd-shell interactions, and isospin-mixing. 32Ar(β+), (EC); analyzed logft values and effect of isospin mixing. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.031301
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2010LE03      Phys.Rev.Lett. 104, 112701 (2010)

J.Lee, M.B.Tsang, D.Bazin, D.Coupland, V.Henzl, D.Henzlova, M.Kilburn, W.G.Lynch, A.M.Rogers, A.Sanetullaev, A.Signoracci, Z.Y.Sun, M.Youngs, K.Y.Chae, R.J.Charity, H.K.Cheung, M.Famiano, S.Hudan, P.O'Malley, W.A.Peters, K.Schmitt, D.Shapira, L.G.Sobotka

Neutron-Proton Asymmetry Dependence of Spectroscopic Factors in Ar Isotopes

NUCLEAR REACTIONS 1H(34Ar, d), (36Ar, d), (46Ar, d), E=33 MeV/nucleon; measured Eδ, Iδ; 34,36,46Ar; deduced neutron ground state spectroscopic factors. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.104.112701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1793. Data from this article have been entered in the XUNDL database. For more information, click here.


2010ZE03      Phys.Rev.Lett. 104, 212504 (2010)

R.G.T.Zegers, R.Meharchand, Y.Shimbara, S.M.Austin, D.Bazin, B.A.Brown, C.Aa.Diget, A.Gade, C.J.Guess, M.Hausmann, G.W.Hitt, M.E.Howard, M.King, D.Miller, S.Noji, A.Signoracci, K.Starosta, C.Tur, C.Vaman, P.Voss, D.Weisshaar, J.Yurkon

34P(7Li, 7Be+γ) Reaction at 100A MeV in Inverse Kinematics

NUCLEAR REACTIONS 34P(7Li, γ7Be)34Si, E=100 MeV/nucleon; measured Eγ, Iγ, γ-particle coin.; deduced σ(θ), β+ Gamow-Teller transition strength distribution. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.104.212504
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Data from this article have been entered in the XUNDL database. For more information, click here.


2008ZE05      Phys.Rev. C 78, 014314 (2008)

R.G.T.Zegers, R.Meharchand, T.Adachi, Sam M.Austin, B.A.Brown, Y.Fujita, M.Fujiwara, C.J.Guess, H.Hashimoto, K.Hatanaka, M.E.Howard, H.Matsubara, K.Nakanishi, T.Ohta, H.Okamura, Y.Sakemi, Y.Shimbara, Y.Shimizu, C.Scholl, A.Signoracci, Y.Tameshige, A.Tamii, M.Yosoi

Spectroscopy of 24Al and extraction of Gamow-Teller strengths with the 24Mg(3He, t) reaction at 420 MeV

NUCLEAR REACTIONS 24Mg(3He, t), E=420 MeV; measured triton spectra, σ(θ). 24Al; deduced levels, J, π, angular momenta, GT strengths. Comparison with model calculations and 24Mg(p, n) data.

doi: 10.1103/PhysRevC.78.014314
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2119. Data from this article have been entered in the XUNDL database. For more information, click here.


2007RO12      Nucl.Instrum.Methods Phys.Res. B259, 669 (2007)

D.Robertson, C.Schmitt, Ph.Collon, D.Henderson, B.Shumard, L.Lamm, E.Stech, T.Butterfield, P.Engel, G.Hsu, G.Konecki, S.Kurtz, R.Meharchand, A.Signoracci, J.Wittenbach

A new AMS setup for nuclear astrophysics experiments

doi: 10.1016/j.nimb.2007.01.261
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2007SI05      Phys.Rev. C 75, 024303 (2007)

A.Signoracci, B.A.Brown

Proton single-particle energies in 23F

NUCLEAR STRUCTURE 23F; calculated levels, J, π, spectroscopic factors. Several Hamiltonians compared with data.

doi: 10.1103/PhysRevC.75.024303
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Note: The following list of authors and aliases matches the search parameter A.Signoracci: , A.J.SIGNORACCI