Saverio Altieri

Prof. Saverio Altieri

University of Pavia - Department of Physics
orcid

Research Focus & Metrics

Academic Career Length

50Years (1977-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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22 June 2001 in Physical Review Letters
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Journal Article
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JAJ. Ahrens
J. Ahrens
Saverio AltieriSaverio Altieri
Saverio Altieri
JAJ. R. M. Annand
J. R. M. Annand
GAG. Anton
G. Anton
HAH.-J. Arends
H.-J. Arends
GZG. Zeitler
G. Zeitler
A direct measurement of the helicity dependence of the total photoabsorption cross section on the proton was carried out at MAMI (Mainz) in the energy range 200<Eγ<800MeV. The experiment used a 4π detection system, a circularly polarized tagged photon beam, and a frozen spin target. The contributions to the Gerasimov-Drell-Hearn sum rule and to the forward spin polarizability γ0 determined from the data are 226±5(stat)±12(syst)μb and −187±8(stat)±10(syst)×10−6fm4, respectively, for 200<Eγ<800MeV.

1 October 2008 in Critical Reviews in Oncology/Hematology
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Journal Article
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AWAndrea Wittig
Andrea Wittig
JMJean Michel
Jean Michel
RMRaymond L. Moss
Raymond L. Moss
FSFinn Stecher-Rasmussen
Finn Stecher-Rasmussen
HAHeinrich F. Arlinghaus
Heinrich F. Arlinghaus
WSWolfgang A.G. Sauerwein
Wolfgang A.G. Sauerwein

1 January 1996 in Physical Review C
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Journal Article
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MMM. MacCormick
M. MacCormick
GAG. Audit
G. Audit
NDN. D’hOse
N. D’hOse
LGL. Ghedira
L. Ghedira
VIV. Isbert
V. Isbert
AZA. Zabrodin
A. Zabrodin
The total photoabsorption cross sections for H1, H2, and He3 have been measured for incident photon energies ranging from 200 to 800 MeV. The He3 data are the first for this nucleus. By using the large acceptance detector DAPHNE in conjunction with the tagged photon beam facility of the MAMI accelerator in Mainz, cross sections of high precision have been obtained. The results show clearly the changes in the nucleon resonances in going from H1 to He3. In particular, for the D13 region the behavior for He3 is intermediate between that for H1, H2, and heavier nuclei. This will provide a strong constraint to the theories that are presently being developed with a view to explaining the apparent ‘‘damping’’ of higher resonances in heavy nuclei. © 1996 The American Physical Society.

26 June 2000 in Physical Review Letters
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Journal Article
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JAJ. Ahrens
J. Ahrens
Saverio AltieriSaverio Altieri
Saverio Altieri
JAJ. R. M. Annand
J. R. M. Annand
GAG. Anton
G. Anton
HAH.-J. Arends
H.-J. Arends
GZG. Zeitler
G. Zeitler
The helicity dependence of the single pion photoproduction on the proton has been measured in the energy range from 200 to 450 MeV for the first time. The experiment, performed at the Mainz microtron MAMI, used a 4π-detector system, a circularly polarized, tagged photon beam, and a frozen-spin target. The data obtained provide new information for multipole analyses of pion photoproduction and determine the main contributions to the Gerasimov-Drell-Hearn sum rule and the forward spin polarizability γ0.

4 November 2003 in Physical Review Letters
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HDH. Dutz
H. Dutz
KHK. Helbing
K. Helbing
JKJ. Krimmer
J. Krimmer
TST. Speckner
T. Speckner
GZG. Zeitler
G. Zeitler
FZF. Zapadtka
F. Zapadtka
To verify the fundamental Gerasimov-Drell-Hearn (GDH) sum rule for the first time experimentally, we measured the helicity dependent total photoabsorption cross section with circularly polarized real photons and longitudinally polarized nucleons in the photon energy range 0.68–1.82 GeV with the tagged photon facility at ELSA. The experiment was carried out with a 4π detection system, a circularly polarized tagged photon beam, and a frozen spin polarized proton target. The contribution to the GDH sum rule in this photon energy range is [49.9±2.4(stat)±2.2(syst)]   μb.

16 July 2004 in Physical Review Letters
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Journal Article
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HDH. Dutz
H. Dutz
GCGDH Collaboration
GDH Collaboration
KHK. Helbing
K. Helbing
JKJ. Krimmer
J. Krimmer
TST. Speckner
T. Speckner
FZF. Zapadtka
F. Zapadtka
For the first time we checked the fundamental Gerasimov-Drell-Hearn (GDH) sum rule for the proton experimentally in the photon energy range from 0.2–2.9 GeV with the tagged photon facilities at MAMI (Mainz) and ELSA (Bonn). New data of the doubly polarized total cross section difference are presented in the energy range from 1.6 to 2.9 GeV. The contribution to the GDH integral from 0.2–2.9 GeV yields [254±5(stat)±12(syst)]  μb with negative contributions in the Regge regime at photon energies above 2.1 GeV. This trend supports the validity of the GDH sum rule.