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NSR database version of April 27, 2024.

Search: Author = M.Mattiuzzi

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2001DI01      Phys.Rev. C63, 014611 (2001)

I.Dioszegi, N.P.Shaw, A.Bracco, F.Camera, S.Tettoni, M.Mattiuzzi, P.Paul

Fission Hindrance in ²⁰⁰Pb Measured from Giant Dipole Resonance γ-Ray Emission

NUCLEAR REACTIONS ¹⁸¹Ta(¹⁹F, X), E=161, 181 MeV; measured Eγ, Iγ, (fragment)γ-coin following compound nucleus fission. ²⁰⁰Pb deduced GDR decay features, fission hindrance, nuclear viscosity parameter. Statistical model analysis.

doi: 10.1103/PhysRevC.63.014611
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1999BA84      Nucl.Phys. A657, 113 (1999)

R.A.Bark, S.Tormanen, T.Back, B.Cederwall, S.W.Odegard, J.F.C.Cocks, K.Helariutta, P.Jones, R.Julin, S.Juutinen, H.Kankaanpaa, H.Kettunen, P.Kuusiniemi, M.Leino, M.Muikku, P.Rahkila, A.Savelius, M.Bergstrom, F.Ingebretsen, A.Maj, M.Mattiuzzi, W.Mueller, L.L.Riedinger, T.Saitoh, P.O.Tjom

Coexistence of Triaxial and Prolate Shapes in ¹⁷¹Ir

NUCLEAR REACTIONS ¹¹⁶Sn(⁵⁸Ni, 2np), E=260, 267 MeV; measured Eγ, Iγ, (recoil)γ-, γγ-coin. ¹⁷¹Ir deduced high-spin levels, J, π, rotational band structure, configurations, triaxiality, shaped-coexistance, band mixing. Cranked mean-field calculations, potential energy surfaces, tilted-axis cranking.

doi: 10.1016/S0375-9474(99)00319-X
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1999CA22      Nucl.Phys. A649, 115c (1999)

F.Camera, A.Bracco, G.Colombo, S.Leoni, B.Million, M.Mattiuzzi, A.Maj, M.Kmiecik, B.Herskind, R.Bark, I.Bearden, J.J.Gaardhoje, E.W.Ormand

The GDR in Hg and Eu Nuclei from Selected Decay Chains

NUCLEAR REACTIONS ¹⁶⁴Dy(³⁰Si, xn), E=142 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁴Hg deduced GDR width vs spin. ¹¹⁰Pd(³⁷Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. ¹⁴³Eu deduced possible superdeformed GDR features. High-energy, discrete γ coincidence.

doi: 10.1016/S0375-9474(99)00048-2
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1999CA25      Phys.Rev. C60, 014306 (1999)

F.Camera, A.Bracco, S.Leoni, B.Million, M.Mattiuzzi, M.Pignanelli, A.Maj, M.Kmiecik, R.Bark, I.Bearden, J.J.Gaardhoje, W.E.Ormand, T.Lonnroth, R.Osterbacka

Probing the Shape of Hot ¹⁹⁴Hg at High Spins with the Giant Dipole Resonance Decay in Selected Cascades

NUCLEAR REACTIONS ¹⁶⁴Dy(³⁰Si, X), E=142 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁴Hg deduced GDR width vs angular momentum, no superdeformed effects. Ge, BaF detectors.

doi: 10.1103/PhysRevC.60.014306
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1998CA19      Eur.Phys.J. A 2, 1 (1998)

F.Camera, A.Bracco, A.Maj, B.Herskind, A.Atac, P.Bosetti, R.Bark, I.G.Bearden, J.J.Gaardhoje, M.Kmiecik, S.Leoni, M.Mattiuzzi, G.Turri

The γ-Decay of the GDR Built on Superdeformed States in ¹⁴³Eu

NUCLEAR REACTIONS ¹¹⁰Pd(³⁷Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. ¹⁴³Eu deduced possible γ-decay of GDR built on superdeformed configuration.

doi: 10.1007/s100500050080
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1998CA36      Acta Phys.Hung.N.S. 7, 385 (1998)

F.Camera, A.Bracco, A.Maj, S.Leoni, M.Mattiuzzi, B.Million, G.Turri, M.Kmiecik

GDR Excited in Rotating Nuclei - Recent Developments

NUCLEAR STRUCTURE Sn; analyzed data for A=106-112, 120; deduced no GDR centroid, width dependence on spin, excitation energy.

NUCLEAR REACTIONS ¹¹⁰Pd(³⁷Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. ¹⁴³Eu deduced GDR built on superdeformed states.

1997BA63      Z.Phys. A359, 5 (1997)

R.A.Bark, P.Bosetti, G.B.Hagemann, H.Ryde, A.Brockstedt, H.Carlsson, L.P.Ekstrom, A.Nordlund, B.Herskind, S.Leoni, A.Bracco, F.Camera, S.Frattini, M.Mattiuzzi, B.Million, C.Rossi-Alvarez, G.de Angelis, D.Bazzacco, S.Lunardi, M.De Poli

High-K Band Structures in ¹⁶⁴Er

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁸O, 4n), E=87 MeV; measured Eγ, Iγ, γγ-coin. ¹⁶⁴Er deduced high-spin levels, J, π, K, band configurations, B(λ) ratios.

doi: 10.1007/s002180050357
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Data from this article have been entered in the XUNDL database. For more information, click here.

1997BR41      Acta Phys.Hung.N.S. 6, 83 (1997)

A.Bracco, F.Camera, A.Maj, B.Herskind, A.Atac, P.Bosetti, R.Bark, I.G.Bearden, J.J.Gaardhoje, M.Kmiecik, S.Leoni, M.Mattiuzzi, G.Turri

The Giant Dipole Resonance in the Superdeformed ¹⁴³Eu Nucleus

NUCLEAR REACTIONS ¹¹⁰Pd(³⁷Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin, γ-ray multiplicity vs energy. ¹⁴³Eu deduced GDR built on superdeformed states. Statistical model calculations.

1997CA27      Acta Phys.Pol. B28, 207 (1997)

F.Camera, A.Bracco, A.Atac, R.Bark, I.G.Bearden, J.J.Gaardhoje, B.Herskind, M.Kmiecik, S.Leoni, M.Mattiuzzi, A.Maj, G.Turri

GDR in Superdeformed Nuclei

NUCLEAR REACTIONS ¹¹⁰Pd(³⁷Cl, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. ¹⁴³Eu deduced evidence for superdeformation associated GDR. BaF₂, HPGe detectors.

1997HA23      Nucl.Phys. A618, 199 (1997)

G.B.Hagemann, H.Ryde, P.Bosetti, A.Brockstedt, H.Carlsson, L.P.Ekstrom, A.Nordlund, R.A.Bark, B.Herskind, S.Leoni, A.Bracco, F.Camera, S.Frattini, M.Mattiuzzi, B.Million, C.Rossi-Alvarez, G.de Angelis, D.Bazzacco, S.Lunardi, M.De Poli

Interactions between a Multitude of Rotational Bands in Well Deformed Odd Nuclei: A new method for spin and parity assignment

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁸O, 5n), E=87 MeV; measured Eγ, Iγ, DCO ratios, γγγ-coin. ¹⁶³Er deduced levels, J, π, rotational bands, multi-quasiparticle structure, strength of band interactions. Enriched target, array of Compton suppressed Ge detectors.

doi: 10.1016/S0375-9474(97)00056-0
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1997MA03      Nucl.Phys. A612, 262 (1997)

M.Mattiuzzi, A.Bracco, F.Camera, W.E.Ormand, J.J.Gaardhoje, A.Maj, B.Million, M.Pignanelli, T.Tveter

Angular Momentum Dependence of the GDR Width in Sn Nuclei at Fixed Excitation Energy

NUCLEAR REACTIONS ⁴⁸Ti(⁵⁸Ni, X), E=260 MeV; measured high energy γ(evaporation residue)-coin. ¹⁰⁶Sn deduced GDR width angular dependence. Adiabatic model, thermal fluctuations, ¹⁷⁶W GDR features analyzed.

doi: 10.1016/S0375-9474(96)00335-1
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1997MA80      Acta Phys.Hung.N.S. 6, 69 (1997)

A.Maj, M.Kmiecik, A.Bracco, F.Camera, M.Mattiuzzi, B.Herskind, J.J.Gaardhoje, T.S.Tveter

Hot Nuclei - Effective Shapes and Entrance Channel Effect

NUCLEAR STRUCTURE ¹⁶²Yb, ¹⁶⁶Er; calculated free energy vs temperature, deformation, angular frequency; deduced GDR strength function related features.

NUCLEAR REACTIONS ¹²²Te(⁴⁸Ti, X), E=208, 215 MeV; ¹¹⁰Pd(⁶⁰Ni, X), E=255, 260 MeV; calculated reaction shape evolution; analyzed γ-ray, neutron fold distributions; deduced GDR γ-decay related features, possible entrance channel effect.

1997MI24      Phys.Lett. 415B, 321 (1997)

B.Million, S.Leoni, A.Bracco, J.Moretti, S.Frattini, P.Bosetti, F.Camera, M.Mattiuzzi, B.Herskind, R.A.Bark, I.Bearden, G.B.Hagemann, H.J.Jensen

Lifetime Measurements of the Rotational Quasi-Continuum Transitions in ¹⁶³Tm

NUCLEAR REACTIONS ¹³⁰Te(³⁷Cl, 4n), E=166 MeV; measured Eγ, Iγ, γγ-coin, DSA. ¹⁶³Tm deduced discrete, quasicontinuum levels T_1/2, B(E2).

doi: 10.1016/S0370-2693(97)01271-9
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1997SH36      Nucl.Phys. A626, 760 (1997)

T.Shizuma, G.Sletten, R.A.Bark, I.G.Bearden, S.Leoni, M.Mattiuzzi, S.Mitarai, S.W.Odegard, S.Skoda, K.Strahle, J.Wrzesinski, Y.R.Shimizu

Multi-Quasiparticle States and K-Forbiddenness in ¹⁷⁷W

NUCLEAR REACTIONS ¹⁶⁴Dy(¹⁸O, 5n), E=83 MeV; measured Eγ, Iγ, γγ-coin, DCO. ¹⁷⁷W deduced high-spin levels J, π, δ, configurations, g-factors, isomer T_1/2.

doi: 10.1016/S0375-9474(97)00585-X
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Data from this article have been entered in the XUNDL database. For more information, click here.

1996BO01      Phys.Rev.Lett. 76, 1204 (1996)

P.Bosetti, S.Leoni, A.Bracco, B.Herskind, T.Dossing, G.B.Hagemann, R.Bark, A.Brockstedt, P.Ekstrom, H.Carlsson, A.Nordlund, H.Ryde, F.Camera, S.Frattini, M.Mattiuzzi, B.Million, D.Bazzacco, R.Burch, G.de Angelis, D.De Acuna, M.de Poli, P.Pavan

Possible Conservation of the K-Quantum Number in Excited Rotating Nuclei

NUCLEAR REACTIONS ¹⁵⁰Nd(¹⁸O, xn), E=87 MeV; measured γγγ-coin. ¹⁶³Er deduced low-, high-K rotational band characteristics.

doi: 10.1103/PhysRevLett.76.1204
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1996BR08      Nucl.Phys. A599, 83c (1996)

A.Bracco, F.Camera, M.Mattiuzzi, D.Gnaccolini, B.Million, J.J.Gaardhoje, A.Maj, T.Tveter

Thermal Fluctuation and Collisional Damping Effects in the Hot Giant Dipole Resonance

NUCLEAR STRUCTURE ^109,110Sn; analyzed GDR width. ^166,165Er; analyzed γ-spectra, dipole strength function; deduced GDR damping mechanism in hot nuclei.

doi: 10.1016/0375-9474(96)00049-8
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1996MA34      Acta Phys.Pol. B27, 541 (1996)

A.Maj, M.Kmiecik, F.Camera, B.Herskind, J.J.Gaardhoje, A.Bracco, A.Atac, R.A.Bark, I.G.Bearden, P.Bosetti, S.Leoni, M.Mattiuzzi, T.S.Tveter, Z.Zelazny

Array of Anti-Compton Spectrometers as a Trigger in GDR Studies

NUCLEAR REACTIONS ¹¹⁰Pd(³⁷Cl, xn), E=160, 170 MeV; measured high energy particle gated γ-spectra; deduced GDR decay characteristics. ¹⁴³Eu deduced possible GDR low lying component.

1995BR06      Nucl.Phys. A583, 83c (1995)

A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli

The GDR at Finite Temperature in Medium and Very Heavy Mass Regions

NUCLEAR REACTIONS ⁴⁸Ti(⁶²Ni, X), (⁶¹Ni, X), E=223, 203 MeV; measured Iγ(θ), strength functions; ²³²Th(⁴⁰Ar, F), E=10.5, 15 MeV/nucleon; measured fission (fragment)γ-coin. ^110,109Sn deduced GDR energy, width characteristics. ²⁷²Hs deduced pre-fission GDR component possible location.

doi: 10.1016/0375-9474(94)00636-2
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1995BR11      Phys.Rev.Lett. 74, 3748 (1995)

A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, J.J.Gaardhoje, A.Maj, T.Ramsoy, T.Tveter, Z.Zelazny

Increase in Width of the Giant Dipole Resonance in Hot Nuclei: Shape change or collisional damping ( Question )

NUCLEAR REACTIONS ^62,61Ni(⁴⁸Ti, X), E=223, 203 MeV; measured γ(θ), strength function. ^109,110Sn deduced GDR, Γ.

doi: 10.1103/PhysRevLett.74.3748
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1995BR19      Acta Phys.Pol. B26, 407 (1995)

A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, J.J.Gaardhoje, T.Ramsoy, T.Tveter, Z.Zelazny, A.Maj

The Damping of the GDR at Finite Temperature: Recent progress

NUCLEAR REACTIONS ⁷⁰Zn(³⁶Ar, X), E=27 MeV/nucleon; ^62,61Ni(⁴⁸Ti, X), E=203, 223 MeV; ¹⁴⁸Nd(²⁸Si, X), E=147 MeV; compiled, reviewed γ-spectra data; deduced GDR damping, other characteristic vs T for mass 110, 170. Hot rotating nuclei.

1995CA23      Acta Phys.Pol. B26, 479 (1995)

F.Camera, A.Bracco, P.Bosetti, M.Mattiuzzi, G.Lo Bianco, M.Pignanelli, J.J.Gaardhoje, Z.Zelazny, I.G.Bearden, A.Maj

Detecting High Energy γ-Rays with HPGe Detectors

NUCLEAR REACTIONS ²H(¹¹B, n), E=19 MeV; measured Eγ, Iγ. Hyperpure Ge detector, ' adding mode ' technique.

1995MA54      Acta Phys.Pol. B26, 417 (1995)

A.Maj, T.S.Tveter, J.J.Gaardhoje, B.Herskind, G.Sletten, T.Ramsoy, A.Atac, W.Korten, A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, J.Bacelar, A.Buda, H.van der Ploeg, W.Krolas, H.Nifenecker, F.Schussler, J.A.Pinston, A.Menthe, P.Paul, D.J.Hofman, I.Dioszegi, S.Schadmand

Hot Superheavy Nuclei Seen with the GDR γ-Decay

NUCLEAR REACTIONS ²³²Th(⁴⁰Ar, F), E=6.8-15 MeV/nucleon; ²³²Th(³⁷Cl, F), E=7.3 MeV/nucleon; measured fission (fragment)γ-coin. ²⁷²Hs, ²⁶⁹Bh deduced GDR γ-decay features. Other reaction data, aspects reviewed.

1995MA55      Acta Phys.Pol. B26, 467 (1995)

M.Mattiuzzi, A.Bracco, F.Camera, B.Million, J.J.Gaardhoje, A.Maj, T.Tveter, Z.Zelazny

Angular Momentum Dependence of the GDR Observables of A = 170 Nuclei at Finite Temperature

NUCLEAR REACTIONS ¹⁴⁸Nd(²⁸Si, X), E=147 MeV; measured Eγ, Iγ(θ), strength function. ¹⁷⁶W deduced GDR observables angular momentum at finite temperature dependence.

1995MA84      Phys.Lett. 364B, 13 (1995)

M.Mattiuzzi, A.Bracco, F.Camera, B.Million, M.Pignanelli, J.J.Gaardhoje, A.Maj, T.Ramsoy, T.Tveter, Z.Zelazny

Thermal Fluctuation and Collisional Damping Effects in the GDR Observables in Hot Rotating ¹⁷⁶W Nuclei

NUCLEAR REACTIONS ¹⁴⁸Nd(²⁸Si, X), E=147 MeV; measured γγ-coin, Eγ, Iγ. ¹⁷⁶W deduced GDR width, thermal fluctuation, collisional damping effects role.

doi: 10.1016/0370-2693(95)01230-5
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1995ZE03      Acta Phys.Pol. B26, 459 (1995)

Z.Zelazny, J.J.Gaardhoje, A.Maj, T.S.Tveter, F.Camera, M.Mattiuzzi, A.Bracco, B.Million, M.Pignanelli

Does the Compound Nucleus Remember Its Way of Formation ( Question ); Hot GDR spectroscopy in the Yb-Dy region

NUCLEAR REACTIONS ¹⁴⁴Sm(¹⁷O, X), (¹⁸O, X), ^113,114Cd(⁴⁸Ti, X), ^128,130Te(²⁸Si, X), (²⁹Si, X), E not given; analyzed Iγ, other data. ¹⁶²Yb, ¹⁵⁸Dy deduced GDR decay features. Hot compound systems.

1994BR08      Nucl.Phys. A569, 51c (1994)

A.Bracco, F.Camera, M.Mattiuzzi, B.Million, M.Pignanelli, C.Volpe, J.J.Gaardhoje, A.Maj, Z.Zelazny, T.Tveter

Thermal and Quantal Fluctuations as Probed by the GDR Observables

NUCLEAR REACTIONS ^61,62Ni(⁴⁸Ti, X), E not given; analyzed Iγ(θ), γ strength function data. ¹¹⁰Sn deduced GDR parameters.

doi: 10.1016/0375-9474(94)90095-7
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1994CA47      Nucl.Instrum.Methods Phys.Res. A351, 401 (1994)

F.Camera, A.Bracco, M.Mattiuzzi, G.Lo Bianco, M.Pignanelli, J.J.Gaardhoje, I.G.Bearden, Z.Zelazny, A.Maj

The response of a HPGe Detector with a BGO Shield to High Energy γ-Rays

NUCLEAR REACTIONS ²H(¹¹B, n), E=19 MeV; measured Eγ, Iγ; deduced detector response. Hyperpure Ge detector with a BGO anti-Compton shield.

doi: 10.1016/0168-9002(94)91369-2
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