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1.
Turinge A. A. Ponomarev V. N. Solodukhov G. V. Nedorezov V. G. 《Physics of Atomic Nuclei》2021,84(12):1935-1937
Physics of Atomic Nuclei - An experiment to study total nuclear photoabsorption cross sections at the linear electron accelerator LUE-8-5 (INR, RAS) in the photon energy region of 5–10 MeV... 相似文献
2.
D. I. Ivanov A. S. Iljinov M. V. Mebel V. G. Nedorezov A. S. Sudov A. A. Turinge T. von Egidy S. Schmid W. Schmid H. Rossner J. Eades 《Zeitschrift für Physik A Hadrons and Nuclei》1995,352(2):191-195
The A dependence of nuclear fission induced by stopped antiprotons has been measured. An unambiguous identification of the binary fission decay mode was provided by a coordinate measurement of complementary fission fragments in coincidence using a large-acceptance fission detector based on low pressure multiwire proportional chambers. A deep fissility minimum was observed nearA=100, in agreement with the general behaviour predicted by the liquid-drop model. An unexpectedly low and high fission probability was found for the Ag and Cu nuclei, respectively. 相似文献
3.
N. V. Rudnev A. S. Ignatov A. M. Lapik A. N. Mushkarenkov V. G. Nedorezov A. A. Turinge for the GRAAL Collaboration 《Physics of Atomic Nuclei》2010,73(8):1469-1473
Experimental data of the GRAAL Collaboration on the total cross sections for photoabsorption on deuterium and carbon targets
at gamma-ray energies in the range between 600 and 1500 MeV are presented. The experiment was performed in a beam of photons
obtained by the method of the Compton backscattering of laser photons at the electron storage ring of the European Synchrotron
Radiation Facility (ESRF, Grenoble, France) by using a wide-aperture detector covering a solid angle close to 4π. The total photoabsorption cross sections were determined by two independent methods: by subtracting the emptytarget background
and by summing partial cross sections for meson photoproduction. The total cross sections for photoabsorption on quasifree
protons and neutrons are shown to agree both in magnitude and in shape within a 5% precision of the measurements. In contrast
to data previously available in the literature, both cross sections show distinctly the F
15(1680) resonance at a photon energy of about 1 GeV. Data obtained in the present experiment for the cross sections for photoabsorption
on a free and a bound nucleon are compared. This comparison reveals a substantial role of two-nucleon correlations in estimating
the nuclear-medium effect on meson photoproduction. 相似文献
4.
5.
Physics of Atomic Nuclei - New experimental data on the multifragmentation of carbon nuclei that is initiated by the photoproduction of neutral pions and eta mesons are discussed. The novelty is... 相似文献
6.
A. D'Angelo O. Bartalini V. Bellini J. P. Bocquet P. Calvat M. Capogni L. Casano M. Castoldi J. -P. Didelez R. Di Salvo A. Fantini D. Franco G. Gervino F. Ghio G. Giardina B. Girolami A. Giusa M. Guidal E. Hourani V. Kouznetsov R. Kunne A. Lapik P. Levi Sandri A. Lleres F. Mammoliti G. Mandaglio D. Moricciani A. N. Mushkarenkov V. Nedorezov L. Nicoletti C. Randieri D. Rebreyend F. Renard N. Rudnev T. Russew G. Russo C. Schaerf M. -L. Sperduto M. -C. Sutera A. Turinge V. Vegna 《The European Physical Journal A - Hadrons and Nuclei》2007,31(4):441-445
Meson photoproduction with polarized photons has proved to be a powerful tool to identify contributions of baryon resonances
that are not evident in the differential cross-sections. It provides information that are complementary to those extracted
using pion-nucleon scattering data. Extensive results have been produced in the past on beam asymmetries by the Graal collaboration
for η and π
0 on the proton. New results are now available for the same reactions on the quasi-free neutron and for the K+ photoproduction on the proton. Contributions from hitherto undetected baryon resonances may be important to understand the
results. 相似文献
7.
S. S. Verbitskii V. N. Emokhonov A. M. Lapik V. G. Nedorezov A. V. Rusakov G. V. Solodukhov M. A. Tikhanov A. A. Turinge A. N. Tselebrovskii 《Bulletin of the Russian Academy of Sciences: Physics》2011,75(11):1544-1548
Application of a photonuclear technique is considered as a nondestructive method for detecting the unauthorized transporting
of camouflaged fissile nuclear material in cargo containers. The advantages of the technique (the use of time selection and
the analysis of energy distributions of delayed neutrons) are demonstrated. The operating modes of the accelerator were optimized
by modeling. A version of a neutron scintillation spectrometer based on a stylbene monocrystal is presented along with its
schematic and main parameters. 相似文献
8.
Ajaka J Assafiri Y Bartalini O Bellini V Bouchigny S Castoldi M D'Angelo A Didelez JP Di Salvo R Döring M Fantini A Fichen L Gervino G Ghio F Girolami B Giusa A Guidal M Hourany E Kunne R Lapik A Sandri PL Moricciani D Mushkarenkov A Nedorezov V Oset E Randieri C Rudnev N Russo G Schaerf C Sperduto M Sutera M Turinge A 《Physical review letters》2008,100(5):052003
The analysis of the gammap-->etapi(0)p reaction has been performed using data from the GRAAL experiment. The total and differential cross sections and the beam asymmetry have been obtained from threshold up to 1.5 GeV of beam energy. The two resonances S11(1535) and Delta(1700) are expected to be excited in the intermediate states of this reaction. The results are used to test predictions based on the assumption that both resonances are dynamically generated from the meson-baryon interaction provided by chiral Lagrangians. The term involving the Delta(1700) excitation, followed by the decay into etaDelta(1232), is found to be dominant. 相似文献
9.
Ajaka J Assafiri Y Bouchigny S Didelez JP Fichen L Guidal M Hourany E Kouznetsov V Kunne R Mushkarenkov AN Nedorezov V Rudnev N Turinge A Zhao Q 《Physical review letters》2006,96(13):132003
The photoproduction of the omega meson has been studied at GRAAL from threshold up to a photon energy of 1.5 GeV. The differential cross sections and beam asymmetries have been measured precisely at all angles. The total cross section is also obtained. Systematic enhancements of the differential cross section at large angles and nonzero beam asymmetries at intermediate angles provide clear evidence for s- and u-channel resonant processes. The data are compared to the results of hadron and quark models. 相似文献
10.
V.Vegna V.Bellini J.P.Bouquet L.Casano A.D'Angelo J.P.Didelez R.Di Salvo A.Fantini D.Franco G.Gervino F.Ghio G.Giardina B.Girolami A.Giusa M.Guidal E.Hourany A.S.Ignatov R.Kunnel A.Lapik A.Lleres P.Levi Sandri F.Mammoliti G.Mandaglio M.Manganaro M.Moricciani A.N.Mushkarenkov V.G.Nedorezov C.Randieri D.Rebreyend N.V.Rudnev G.Russo C.Schaerf M.L.Sperduto M.C.Sutera A.Turinge 《中国物理C(英文版)》2009,33(12)
The GRAAL experimental set-up consists of a polarized and tagged photon beam that covers an energy range from a minimum of 600 MeV up to a maximum of 1500 MeV, of a liquid Hydrogen or Deuterium target and of the 4π Lagrange detector optimized for photon detection. It allows the study of pseudo-scalar and vector meson photoproduction on the nucleon in the energy range corresponding to the second and the third resonance regions. In the following, the Σ beam asymmetries in η and π~0 photoproduction on quasi-free nucleon are shown. Also single and double polarization observables in K~+A photoproduction on free proton are shown; they are important to confirm the role of new or poorly known resonances in the 1900 MeV mass region. 相似文献