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1. Correlations and Characterization of Emitting Sources

Author

Verde, G., Chbihi, A., Ghetti, R., and Helgesson, J.

Subjects
Nuclear Experiment
Abstract

Dynamical and thermal characterizations of excited nuclear systems produced during the collisions between two heavy ions at intermediate incident energies are presented by means of a review of experimental and theoretical work performed in the last two decades. Intensity interferometry, applied to both charged particles (light particles and intermediate mass fragments) and to uncharged radiation (gamma rays and neutrons) has provided relevant information about the space-time properties of nuclear reactions. The volume, lifetime, density and relative chronology of particle emission from decaying nuclear sources has been extensively explored and has provided valuable information about the dynamics of heavy-ion collisions. Similar correlation techniques applied to coincidences between light particles and complex fragments are also presented as a tool to determine the internal excitation energy of excited primary fragments as it appears in secondary-decay phenomena., Comment: To appear on Euorpean Physics Journal A as part of the Topical Volume "Dynamics and Thermodynamics with Nuclear Degrees of Freedom"

Published
2006
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2. Light cluster production in E/A = 61 MeV 36Ar + 112,124Sn reactions

Author

Ghetti, R., Helgesson, J., Avdeichikov, V., Jakobsson, B., Colonna, N., Tagliente, G., Wilschut, H. W., and Kravchuk, V. L.

Subjects
Nuclear Experiment
Abstract

Experimental kinetic energy distributions and small-angle two-particle correlation functions involving deuterons and tritons are compared for 36Ar+ 112,124Sn collisions at E/A = 61 MeV (i.e. for systems similar in size, but with different isospin content). A larger triton yield is observed from the more neutron-rich system, as predicted by IBUU simulations, while the emission times of the light clusters are found to be the same for the two Sn-target systems. For both systems, the time sequence tau_{d} < tau_{p} < tau_{t}, is deduced for charged particles emitted from the intermediate velocity source., Comment: 4 pages, 3 figures, submitted to Phys. Rev. C

Published
2005

3. The complement: a solution to liquid drop finite size effects in phase transitions

Author

Moretto, L. G., Bugaev, K. A., Elliott, J. B., Ghetti, R., Helgesson, J., and Phair, L.

Subjects
Nuclear Theory, Condensed Matter - Statistical Mechanics
Abstract

The effects of the finite size of a liquid drop undergoing a phase transition are described in terms of the complement, the largest (but still mesoscopic) drop representing the liquid in equilibrium with the vapor. Vapor cluster concentrations, pressure and density from fixed mean density lattice gas (Ising) model calculations are explained in terms of the complement. Accounting for this finite size effect is key to determining the infinite nuclear matter phase diagram from experimental data., Comment: Four two column pages, four figures, two tables; accepted for publication in PRL

Published
2004
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4. Correlation functions and emission time sequence of light charged particles from projectile-like fragment source in E/A = 44 and 77 MeV 40Ar + 27Al collisions

Author

Ghetti, R., Helgesson, J., Lanzano', G., De Filippo, E., Geraci, M., Aiello, S., Cavallaro, S., Pagano, A., Politi, G., Charvet, J. L., Dayras, R., Pollacco, E., Volant, C., Beck, C., Mahboub, D., and Nouicer, R.

Subjects
Nuclear Experiment
Abstract

Two-particle correlation functions, involving protons, deuterons, tritons, and alpha-particles, have been measured at very forward angles (0.7 deg < theta_lab < 7 deg), in order to study projectile-like fragment (PLF) emission in E/A = 44 and 77 MeV 40Ar + 27Al collisions. Peaks, originating from resonance decays, are larger at E/A = 44 than at 77 MeV. This reflects the larger relative importance of independently emitted light particles, as compared to two-particle decay from unstable fragments, at the higher beam energy. The time sequence of the light charged particles, emitted from the PLF, has been deduced from particle-velocity-gated correlation functions (discarding the contribution from resonance decays). Alpha-particles are found to have an average emission time shorter than protons but longer than tritons and deuterons., Comment: 18 pages, 5 figures, submitted to Nuclear Physics A

Published
2004
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5. Analysis of charged particle emission sources and coalescence in E/A = 61 MeV $^{36}$Ar + $^{27}$Al, $^{112}$Sn and $^{124}$Sn collisions

Author

Avdeichikov, V., Ghetti, R., Helgesson, J., Jakobsson, B., Golubev, P., Colonna, N., and Wilschut, H. W.

Subjects
Nuclear Experiment
Abstract

Single-particle kinetic energy spectra and two-particle small angle correlations of protons ($p$), deuterons ($d$) and tritons ($t$) have been measured simultaneously in 61A MeV $^{36}$Ar + $^{27}$Al, $^{112}$Sn and $^{124}$Sn collisions. Characteristics of the emission sources have been derived from a ``source identification plot'' ($\beta_{source}$--$E_{CM}$ plot), constructed from the single-particle invariant spectra, and compared to the complementary results from two-particle correlation functions. Furthermore, the source identification plot has been used to determine the conditions when the coalescence mechanism can be applied for composite particles. In our data, this is the case only for the Ar + Al reaction, where $p$, $d$ and $t$ are found to originate from a common source of emission (from the overlap region between target and projectile). In this case, the coalescence model parameter, $\tilde{p}_0$ -- the radius of the complex particle emission source in momentum space, has been analyzed., Comment: 20 pages, 5 figures, submitted to Nuclear Physics A

Published
2004
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6. Isospin effects on two-particle correlation functions in E/A = 61 MeV 36Ar + 112,124Sn reactions

Author

Ghetti, R., Avdeichikov, V., Jakobsson, B., Golubev, P., Helgesson, J., Colonna, N., Tagliente, G., Wilschut, H. W., Kopecky, S., Kravchuk, V. L., Anderson, E. W., Nadel-Turonski, P., Westerberg, L., Bellini, V., Sperduto, M. L., and Sutera, C.

Subjects
Nuclear Experiment
Abstract

Small-angle, two-particle correlation functions have been measured for 36Ar+ 112,124Sn collisions at E/A = 61 MeV. Total momentum gated neutron-proton (np) and proton-proton (pp) correlations are stronger for the 124Sn-target. Some of the correlation functions for particle pairs involving deuterons or tritons (nd, pt, and nt) also show a dependence on the isospin of the emitting source., Comment: 4 pages, 4 figures. Submitted to Physical Review Letters

Published
2003
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7. Possibility to deduce the emission time sequence of neutrons and protons from the neutron-proton correlation function?

Author

Ghetti, R., Helgesson, J., Colonna, N., Jakobsson, B., Anzalone, A., Bellini, V., Carlen, L., Cavallaro, S., Celano, L., De Filippo, E., D'Erasmo, G., Di Santo, D., Fiore, E. M., Fokin, A., Geraci, M., Giustolisi, F., Kuznetsov, A., Lanzano', G., Mahboub, D., Marrone, S., Maartensson, J., Palomba, M., Pantaleo, A., Paticchio, V., Riera, G., Sperduto, M. L., Sutera, C., Tagliente, G., and Urrata, M.

Subjects
Nuclear Experiment
Abstract

Experimental information has been derived from the neutron-proton correlation function in order to deduce the time sequence of neutrons and protons emitted at 45 degrees in the E/A = 45 MeV 58Ni + 27Al reaction., Comment: 4 pages, 4 figures. Physical Review Letters, in press

Published
2001
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8. The Role of Phase Space in Complex Fragment Emission from Low to Intermediate Energies

Author

Moretto, L. G., Ghetti, R., Jing, K. X., Phair, L., Tso, K., and Wozniak, G. J.

Subjects
Nuclear Experiment
Abstract

The experimental emission probabilities of complex fragments by low energy compound nuclei and their dependence upon energy and atomic number are compared to the transition state rates. Intermediate-mass-fragment multiplicity distributions for a variety of reactions at intermediate energies are shown to be binomial and thus reducible at all measured transverse energies. From these distributions a single binary event probability can be extracted which has a thermal dependence. A strong thermal signature is also found in the charge distributions. The n-fold charge distributions are reducible to the 1-fold charge distributions through a simple scaling dictated by fold number and charge conservation., Comment: 15 pages, TeX type, psfig, also available at http://csa5.lbl.gov/moretto/ps/brazil.ps, to appear in Proceedings of the 1st International Conference on Nuclear Dynamics at Long and Short Distances, April 8-12, 1996, Angra dos Reis, Brazil

Published
1996

10. Phase Coexistence in Multifragmentation?

Author

Moretto, L.G., Phair, L., Ghetti, R., Tso, K., Colonna, N., Skulski, W., Wozniak, G.J., Bowman, D.R., Carlin, N., Chartier, M., Gelbke, C.K., Gong, W.G., Hsi, W.C., Kim, Y.D., Lisa, M.A., Lynch, W.G., Peaslee, G.F., Schwarz, C., Souza, R.T. de, Tsang, M.B., and Zhu, F.

Published
1995

20. Isospin effects on particle emission time sequence in E/A=61 MeV Ar-36+Sn-112,Sn-124 reactions

Author

Ghetti, R, Helgesson, J, Avdeichikov, [No Value], Jakobsson, B, Colonna, N, Wilschut, HW, and KVI - Center for Advanced Radiation Technology

Subjects
ASYMMETRIC NUCLEAR-MATTER, CALIBRATION, MODEL, COLLISIONS, Astrophysics::High Energy Astrophysical Phenomena, COALESCENCE, Nuclear Theory, NEUTRON, Nuclear Experiment, LIGHT-CHARGED-PARTICLE, PROTON, SYSTEM
Abstract

The emission time sequence of neutrons, protons, and deuterons is deduced from velocity-gated two-particle correlation functions in E/A=61 MeV Ar-36+Sn-112,Sn-124 reactions. A dependence of the emission sequence on the isospin of the emitting source is observed.

Published
2004

21. Analysis of charged particle emission sources and coalescence in E/A=61 (MeVAr)-Ar-36+Al-27, Sn-112 and Sn-124 collisions

Author

Avdeichikov, Vladimir, Ghetti, R, Helgesson, J, Jakobsson, B, Golubev, P, Colonna, N, Wilschut, HW, Avdeitchikov, V., and KVI - Center for Advanced Radiation Technology

Subjects
FRAGMENT PRODUCTION, nuclear reactions(27)Al, (112,124) Sn(Ar-36, pX),(Ar-36, deduced particle source features, OF-FLIGHT MULTIDETECTOR, INTENSITY INTERFEROMETRY, measured particle spectra, correlations, HEAVY-ION COLLISIONS, 35A MEV, INTERMEDIATE, coalescence model, BINARY DISSIPATIVE COLLISIONS, HOT-NUCLEI, NEUTRON, dX), (Ar-36,tX), E=61 MeV/nucleon, MEV/NUCLEON
Abstract

Single-particle kinetic energy spectra and two-particle small angle correlations of protons (p), deuterons (d) and tritons (t) have been measured simultaneously in 61 A MeV Ar-36 + Al-27, Sn-112 and Sn-124 collisions. Characteristics of the emission sources have been derived from a "source identification plot" (beta(source)-E-CM plot), constructed from the single-particle invariant spectra, and compared to the complementary results from two-particle correlation functions. Furthermore, the source identification plot has been used to determine the conditions when the coalescence mechanism can be applied for composite particles. In our data, this is the case only for the Ar + Al reaction, where p, d and t are found to originate from a common source of emission (from the overlap region between target and projectile). In this case, the coalescence model parameter, (p) over tilde (0)-the radius of the complex particle emission source in momentum space, has been analyzed. (C) 2004 Elsevier B.V. All rights reserved.

Published
2004

23. Isospin effects on two-particle correlation functions in E/A=61 MeV Ar-36+Sn-112,Sn-124 reactions

Author

Ghetti, R, Avdeichikov, [No Value], Jakobsson, B, Golubev, P, Helgesson, J, Colonna, N, Tagliente, G, Wilschut, HW, Kopecky, S, Kravchuk, VL, Anderson, EW, Nadel-Turonski, P, Westerberg, L, Bellini, V, Sperduto, ML, Sutera, C, and KVI - Center for Advanced Radiation Technology

Subjects
ASYMMETRIC NUCLEAR-MATTER, NEUTRON-RICH NUCLEI, FRAGMENT PRODUCTION, CALIBRATION, Nuclear Theory, 43 MEV/NUCLEON, EQUATION, HEAVY-ION COLLISIONS, Nuclear Experiment, LIGHT-CHARGED-PARTICLE, PROTON, STATE
Abstract

Small-angle, two-particle correlation functions have been measured for Ar-36+Sn-112,Sn-124 collisions at E/A=61 MeV. Total momentum gated neutron-proton (np) and proton-proton (pp) correlations are stronger for the Sn-124 target. Some of the correlation functions for particle pairs involving deuterons or tritons (nd, pt, and nt) also show a dependence on the isospin of the emitting source.

Published
2004

26. Chronology of particle emission from the E/A=61 MeV Ar-36+Al-27 reaction

Author

Ghetti, R, Helgesson, J, Avdeichikov, V, Golubev, P, Jakobsson, B, Colonna, N, Tagliente, G, Kopecky, S, Kravchuk, Vl, Wilschut, Hw, Anderson, Ew, Nadel Turonski, P, Westerberg, L, Bellini, Vincenzo, Sperduto, Ml, and Sutera, CONCETTA MARIA

Subjects
SLOWLY EXPANDING SYSTEMS, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, HEAVY-ION COLLISIONS, LIGHT-CHARGED-PARTICLE, PROTON, MODEL, INTERFEROMETRY, INTERMEDIATE, Physics::Accelerator Physics, HOT-NUCLEI, NEUTRON, QUANTUM-STATISTICAL CORRELATIONS, Nuclear Experiment
Abstract

The emission time chronology of neutrons, protons, and deuterons from the E/A=61 MeV Ar-36+Al-27 reaction is deduced from two-particle correlation functions.

Published
2003

27. Particle emission time sequence in intermediate energy heavy ion reactions

Author

Ghetti, R, Helgesson, J, CHIC Collaboration tra cui, and Bellini, Vincenzo

Subjects
Physics, Nuclear and High Energy Physics, Series (mathematics), Astrophysics::High Energy Astrophysical Phenomena, Fermion, Time sequence, Nuclear physics, Interferometry, Intermediate energy, Particle emission, Neutron, Heavy ion, Atomic physics, Nuclear Experiment
Abstract

The CHIC Collaboration has performed a series of simultaneous pp, np and nn fermion interferometry experiments in order to study the space-time evolution of the emission sources in intermediate energy heavy ion reactions. Furthermore, when correlations of non-identical particles are available, additional model independent information on the emission chronology of the particles is obtained. In this contribution, after reviewing the method to determine the order of emission of non-identical particles, we discuss the emission chronology of neutrons and protons from the E/A = 45 MeV Ni-58 + Al-27 reaction and from the E/A = 60 MeV Ar-36 + Al-27 reaction, shown here for the first time.

Published
2003

29. Neutron-neutron intensity interferometry in E/A = 45 MeV $^{58}$Ni + $^{27}$Al, $^{nat}$Ni, and $^{197}$Au reactions

Author

Ghetti, R., Colonna, N., Jakobsson, B., Helgesson, J., Martensson, J., De Filippo, E., Tagliente, G., Lanzano, G., Pantaleo, A., Bellini, V., Anzalone, A., Cavallaro, S., Celano, L., D'Erasmo, G., Si Santo, D., Fiore, E.M., Geraci, M., Giustolisi, F., Kuznetsov, A., Mahboub, D., Merchez, F., Palomba, M., Paticchio, V., Riera, G., Sperduto, M.L., Sutera, C., Urrata, M., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Joseph Fourier - Grenoble 1 (UJF)-Centre National de la Recherche Scientifique (CNRS), and CHIC

Subjects
[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]
Published
2000

30. Neutron-neutron intensity interferometry in E/A=45 MeV Ni-58+Al-27, Ni-nat, and Au-197 reactions

Author

Ghetti, R, Colonna, N, Jakobsson, B, Helgesson, J, Martensson, J, De Filippo, E, Tagliente, G, Lanzano, G, Pantaleo, A, Bellini, Vincenzo, Anzalone, A, Cavallaro, S, Celano, L, D'Erasmo, G, Di Santo, D, Fiore, Em, Geraci, M, Giustolisi, F, Kuznetsov, A, Mahboub, D, Merchez, F, Palomba, M, Paticchio, V, Riera, G, Sperduto, Ml, Sutera, CONCETTA MARIA, and Urrata, M.

Published
2000

31. Two-Neutron interferometry in low- and intermediate- energy heavy ion reactions

Author

Colonna, N., Ghetti, R., Jakobsson, B., De Filippo, E., Tagliente, G., Anzalone, A., Bellini, Vincenzo, Carlén, L., Cavallaro, S., Celano, L., D’Erasmo, G., Di Santo, D., Fiore, E. M., Fokin, A., Geraci, M., Helgesson, J., Kuznetsov, A., Lanzanò, G., Mahboub, D., Mårtensson, J., Pagano, A., Palazzolo, F., Palomba, M., Pantaleo, A., Paticchio, V., Potenza, R., Riera, G., Russo, V., Siwek, A., Sperduto, M. L., Sutera, CONCETTA MARIA, Urrata, M., and Westerberg, L.

Published
1999

32. Investigating pre-equilibrium and equilibrium neutron emission in the 45 MeV/nucleon $^{58}Ni + ^{27}Al$ reaction via two-neutron interferometry

Author

Ghetti, R., Colonna, N., De Filippo, E., Helgesson, J., Tagliente, G., Anzalone, A., Bellini, Vincenzo, Carlén, L., Cavallaro, S., Celano, L., D'Erasmo, G., Di Santo, D., Fiore, E. M., Fokin, A. V., Geraci, M., Jakobsson, B., Kuznetsov, A., Lanzanò, G., Mahboub, D., Murin Yu, A., Martensson, J., Pagano, A., Palazzolo, F., Palomba, M., Pantaleo, A., Paticchio, V., Potenza, R., Riera, G., Siwek, A., Sperduto, M. L., Sutera, C., Urrata, M., and Westerberg, L.

Subjects
Nuclear Physics
Published
1999

33. An experimental study of $^{1,2,3}H$, $^{3,4,6}He$, $^{6,7,8,9}Li$, $^{7,9,10,11}Be$ and $^{10,11,12}B$ isotope production from interactions of 14 A and 32 AMeV $^{14}N$ with $^{112,124}Sn$

Author

Fokin, A V, Lozhkin, O V, Bellini, V, Berg, M, Bogdanov, A, Bondorf, J P, Budzanowski, A, Carlén, L, Conelli, C, Cronqvist, M, Czech, B, Elmér, R, Ericsson, G, Ghetti, R, Guttormsen, M, Helgesson, J, Idier, D, Ieki, K, Jakobsson, B, Julien, J, Kuznetsov, A, Lyapin, V G, Løvhøiden, G, Merchez, F, Mishustin, I N, Motobayashi, T, Murin, Yu A, Martensson, J, Norén, B, Nyberg, J, Nybø, K, Oskarsson, A, Riera, G, Siwek, A, Skeppstedt, Ö, Skwirczynska, I, Sperduto, M L, Sutera, C, Thorsteinsen, T F, Westerberg, L, Whitlow, H J, Zubkov, M A, and Larionov, A

Subjects
Nuclear Physics
Published
1998

34. t/d/p ratios in nucleon-nucleus and heavy ion reactions: can entropy be determined?

Author

Fokin, A V, Carlén, L, Ghetti, R, Jakobsson, B, Martensson, J, Murin, Yu A, Oskarsson, A, Ekström, C, Ericsson, G, Romanski, J, Van Veldhuizen, E J, Westerberg, L, Nybø, K, Thorsteinsen, T F, Amirelmi, S, Guttormsen, M, Løvhøiden, G, Bellini, V, Palazzolo, F, Sperduto, M L, Bondorf, J P, Mishustin, I N, Avdeichikov, V, Lozhkin, O V, Friedman, W A, and Gudima, K K

Subjects
Nuclear Physics
Published
1998

35. Pion production excitation in proton-nucleus collisions from the absolute threshold to 500 MeV

Author

Martensson, J, Berg, M, Carlén, L, Elmér, R, Fokin, A V, Ghetti, R, Jakobsson, B, Norén, B, Oskarsson, A, Whitlow, H J, Ekström, C, Ericsson, G, Romanski, J, Van Veldhuizen, E J, Westerberg, L, Julien, J, Nybø, K, Thorsteinsen, T F, Amirelmi, S, Guttormsen, M, Løvhøiden, G, Bellini, V, Palazzolo, F, Sperduto, M L, Sutera, C, Avdeichikov, V, Kuznetsov, A, and Murin, Yu A

Subjects
Nuclear Physics
Published
1998

37. Isospin Effects on Two-Particle Correlation Functions in E/A = 61 MeV 36Ar + 112,124Sn

Author

Ghetti, R., Avdeichikov, V., Jakobsson, B., Golubev, P., Helgesson, J., Colonna, N., Tagliente, G., Wilschut, H. W., Kopecky, S., Kravchuk, V. L., Andersson, E. W., Nadel-Turonski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., Sutera, C., Ghetti, R., Avdeichikov, V., Jakobsson, B., Golubev, P., Helgesson, J., Colonna, N., Tagliente, G., Wilschut, H. W., Kopecky, S., Kravchuk, V. L., Andersson, E. W., Nadel-Turonski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., and Sutera, C.

Published
2004

38. Calibration of a Neutron Time-of-Flight Multidetector System for an Intensity Interferometry Experiment

Author

Ghetti, R., Colonna, N., Helgesson, J., Avdeichikov, V., Golubev, P., Jakobsson, B., Tagliente, G., Brandenburg, S, Kravchuk, V. L., Wilschut, H. W., Kopecky, S., Anderson, A. W., Nadel-Turonski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., Sute, Ghetti, R., Colonna, N., Helgesson, J., Avdeichikov, V., Golubev, P., Jakobsson, B., Tagliente, G., Brandenburg, S, Kravchuk, V. L., Wilschut, H. W., Kopecky, S., Anderson, A. W., Nadel-Turonski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., and Sute

Published
2004

39. Reducible emission probabilities and thermal scaling in multifragmentation

Author

Moretto, L G, Phair, L, Tso, K, Ghetti, R, Colonna, N, Skulski, W, Wozniak, G J, Bowman, D R, Carlin, N, Chartier, M, De Souza, R T, Gelbke, C K, Gong, W G, Hsi, W C, Kim, Y D, Lisa, M A, Lynch, W G, Peaslee, G F, Schwarz, C, Tsang, M B, and Zhu, F

Subjects
Nuclear Physics
Published
1995

41. Chronology of Particle Emission from the E/A = 61 MeV Ar-36 + Al-27 Reaction

Author

Ghetti, R., Helgesson, J., Avdeichikov, V., Golubev, P., Jakobsson, B., Colonna, N., Tagliente, G., Kopecky, S., Kravchuk, V. L., Wilschut, H. W., Andersson, E. W., Nadel-Touronski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., Sutera, C., Ghetti, R., Helgesson, J., Avdeichikov, V., Golubev, P., Jakobsson, B., Colonna, N., Tagliente, G., Kopecky, S., Kravchuk, V. L., Wilschut, H. W., Andersson, E. W., Nadel-Touronski, Pawel, Westerberg, Lars, Bellini, V., Sperduto, M. L., and Sutera, C.

Published
2003

42. Pp, nn and pn interferometry in 30A MeV heavy ion reactions

Author

Ghetti, R., Carlen, L., Jakobsson, B., Noren, B., Cronqvist, M., Skeppstedt, O., Westerberg, L., Merchez, F., Rebreyend, D., Pratt, S., bibliotheque, LPSC, Laboratoire de Physique Subatomique et de Cosmologie (LPSC), and Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
1993

43. Neutron-proton interferometry in 30A MeV $^{40}$Ar + $^{197}$Au collisions

Author

Cronqvist, M., Skeppstedt, O., Berg, M., Carlen, L., Elmer, R., Ghetti, R., Helgesson, J., Jakobsson, B., Noren, B., Oskarsson, A., Merchez, F., Rebreyend, D., Westerberg, L., Avdeichikov, V., Bogdanov, A., Lozhkin, O., Murin, Yu., Nyboe, K., Olberg, E., Thorsteinsen, T.F., Laboratoire de Physique Subatomique et de Cosmologie (LPSC), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Institut Polytechnique de Grenoble - Grenoble Institute of Technology-Centre National de la Recherche Scientifique (CNRS), and CHIC

Subjects
[PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex]
Published
1993

44. Influence of multiple sources on the two-neutron correlation function in Ni-induced, intermediate energy, heavy ion reactions - art. no. 017602

Author

Ghetti, R, Helgesson, J, Colonna, N, Jakobsson, B, Anzalone, A, Bellini, V, Carlen, L, Cavallaro, S, Celano, L, De, Filippo E, D'Erasmo, G, Di, Santo D, Fiore, EM, Fokin, A, Geraci, M, Giustolisi, F, Kuznetsov, A, Lanzano, G, Mahboub, D, Marrone, S, Merchez, F, Martensson, J, Ghetti, R, Helgesson, J, Colonna, N, Jakobsson, B, Anzalone, A, Bellini, V, Carlen, L, Cavallaro, S, Celano, L, De, Filippo E, D'Erasmo, G, Di, Santo D, Fiore, EM, Fokin, A, Geraci, M, Giustolisi, F, Kuznetsov, A, Lanzano, G, Mahboub, D, Marrone, S, Merchez, F, and Martensson, J

Abstract

The strength of the neutron-neutron correlation function from the E=45A MeV Ni-58+Al-27, Ni-nat, and Au-197 reactions depends on the neutron parallel velocity. This indicates the presence of multiple sources of neutron emission. We find these sources cons, Addresses: Ghetti R, Univ Lund, Dept Phys, SE-22100 Lund, Sweden. Univ Lund, Dept Phys, SE-22100 Lund, Sweden. Malmo Univ, SE-20506 Malmo, Sweden. Ist Nazl Fis Nucl, I-70126 Bari, Italy. Dipartimento Fis, I-70126 Bari, Italy. Ist Nazl Fis Nucl, Sez Catani

Published
2001

45. Pion production excitation functions in proton-nucleus collisions from the absolute threshold to 500 MeV - art. no. 014610

Author

Martensson, J, Berg, M, Carlen, L, Elmer, R, Fokin, A, Ghetti, R, Jakobsson, B, Noren, B, Oskarsson, A, Whitlow, HJ, Ekstrom, C, Ericsson, G, Romanski, J, van Veldhuizen, E. J., Westerberg, L, Julien, J, Nybo, K, Thorsteinsen, TF, Amirelmi, S, Guttormsen, M, Lovhoiden, G, Bellin, Martensson, J, Berg, M, Carlen, L, Elmer, R, Fokin, A, Ghetti, R, Jakobsson, B, Noren, B, Oskarsson, A, Whitlow, HJ, Ekstrom, C, Ericsson, G, Romanski, J, van Veldhuizen, E. J., Westerberg, L, Julien, J, Nybo, K, Thorsteinsen, TF, Amirelmi, S, Guttormsen, M, Lovhoiden, G, and Bellin

Abstract

Pion excitation functions in proton-nucleus collisions, from the absolute threshold to 500 MeV, have been measured with 1 MeV beam energy resolution at the CELSIUS storage ring, operating in slow ramping mode. Total yields, angular distributions, and targ, Addresses: Martensson J, Univ Lund, Dept Phys, Solvegatan 14, Lund, Sweden. Univ Lund, Dept Phys, Lund, Sweden. Univ Uppsala, Svedberg Lab, Uppsala, Sweden. Univ Uppsala, Dept Neutron Phys, Uppsala, Sweden. Ctr Etud Nucl, Saclay, France. Univ Bergen, Dept

Published
2000

46. Leçons d'aïkido Texte imprimé

Author

Ghetti Roberto, Giberti Marco, Vielfaure Céline, Ceresa Fabio, Ghetti R. professeur d'arts martiaux, Ghetti Roberto, Giberti Marco, Vielfaure Céline, Ceresa Fabio, and Ghetti R. professeur d'arts martiaux

Abstract

La couv. porte en plus : "guide pratique photographique", Lexique

Published
2000

48. Correlation functions of light charged particles from projectile-like fragment source in and 77 MeV 40Ar + 27Al collisions

Author

Ghetti, R., primary, Helgesson, J., additional, Lanzanò, G., additional, De Filippo, E., additional, Geraci, M., additional, Aiello, S., additional, Cavallaro, S., additional, Pagano, A., additional, Politi, G., additional, Charvet, J.L., additional, Dayras, R., additional, Pollacco, E., additional, Volant, C., additional, Beck, C., additional, Mahboub, D., additional, and Nouicer, R., additional

Published
2006
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