Colli, L.

Gadioli, E.

Lucioni, D.

Micheletti, S.

Archive of European Integration

m m l;it«<wWlUl'Vrøj M lur-•p^PvlJi m REPRINT l*s ΐ$Μψ*£ m Κ «!p ife luir; IM W sfiHifl Pptö iÎ«Hfl ASSOCIATION EURATOM - C.N.E.N (European Atomic Energy Community ani omítate Nazionale per l'Enei .AL·».* * -Çlwhu m Nife! THE JMK« KlIU ΚΏ I liìMii^Mli tø*** i!rV. 1 ffi -11 . laWRi!!! if"1 1 1 « [ELL : fjfö1 Η li COLLI, .κ»5! » im iADIOLI, D. LUCIONI E SÜ MICHELETT; i KU»! » f l rm mm mwm* äü WW WWÍ^fir '" π ™* * ν m -AJ· ί% m |«î? Γ «JS «iaitL* ii ! « ¡ΚΏ Mi di ^fcí IN fø .tf! ,-V;,¡ÍVAJI J! Η I 'M Wkm m Work performed by Istituto Nazionale di Fisica - Nucleare (I.N.F.N.) Sezione di MUano under the Euratom contract No. 001-60-12 MPA1 m ■ ' ■ ; ; iti m 'mi msmì Reprinted from NUCLEAR PHYSICS 46 - 1963 Tir ι.'>Jiii-'Wrif' M t» I» lifiühalil This document was prepared under the sponsorship of the Commission of the European Atomic Energy Community (EURATOM). •4. X J. Χ " XT. ■ 1 . t . 1 Í ion, its contractors nor any person acting on their behalf : Neither the EURATOM Commission Make any warranty or representation, express or implied, with respect to the accuracy, completeness, or usefulness of the information contained in this document, or that the use of any information, apparatus, method, or process disclosed in this document may not infringe privately owned rights; or 2° — Assume any liability with respect to the use of, or for damages resulti: any information, apparatus, method or process disclosed in this document. The authors' names are listed in alphabetical order. This reprint is intended for restricted distribution only. It reproduces, by kind permission of the publisher, an article from "NUCLEAR PHYSICS", 46 ­ 1963, 73­77. For further copies please apply to North­Holland Publishing Company ­ P.O. Box 103 — Amsterdam, (Netherlands). Dieser Sonderdruck ist für eine beschränkte Verteilung bestimmt. Die Wiedergabe des vorliegenden in „NUCLEAR PHYSICS", 46 ­ 1963, 73­77. erschienenen Aufsatzes erfolgt mit freundlicher Genehmigung des Herausgebers. Bestellungen weiterer Exemplare sind an North­Holland Publishing Company ­ P.O. Box 103 — Amsterdam (Nether­lands), zu richten, l'.fåft Ce tiré­à­part est exclusivement destiné à une diffusion restreinte. Il reprend, avec l'aimable autorisation de l'éditeur, un article publié dans le «NUCLEAR PHYSICS», 46 ­ 1963, 73­77. Tout autre exemplaire^ de cet article, doit être demandé à North­Holland Publishing Company ­ P.O. Box 103 — Amsterdam (Netherlands). Questo estratto è destinato esclusivamente ad una diffusione limitata. Esso 'l'iwf' ^sso ^ s^° ripr°dotto, per gentile concessione dell'Editore, da «NUCLEAR PHYSICS», 46 ­ 1963, 73­77. Ulteriori copie dell'articolo debbono essere richieste a North­Holland Publishing Company - P.O "Pili Box 103 — Amsterdam (Netherlands). pi! Deze overdruk is slechts voor beperkte verspreiding bestemd. Het artikel is met welwillende toestemming van de uitgever overgenomen uit „NUCLEAR PHYSICS", 46 ­ 1963, 73­77. Meer exemplaren kunnen besteld worden bij North­Holland Publishing Company ­ P.O. Box 103 —· Amsterdam (Netherlands) E U R 4 4 8 . e REPRINT THE (n,d) PICK-UP REACTION ON f, PROTON SHELL NUCLEI by L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. Association EURATOM - C.N.E.N. (European Atomic Energy Community and Comitato Nazionale per l'Energia Nucleare) Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione di Milano under the Euratom contract No. 001-60-12 MPAI Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. The angular distribution of deuterons from the reaction Fe56(n,d) Mn55 has been measured for the / = 3 transition to the ground state of Mn55. A good fit is found with DWBA calculations. A satisfactory agreement is also obtained between the experimental values of the cross section for the transition to the ground state of the final nucleus in a series of isotopes belonging to the f7 proton shell and the theoretical values obtained from the shell model in the j-j coupling limit by means of DWBA calculations. E U R 4 4 8 . e REPRINT THE (n,d) PICK-UP REACTION ON f, PROTON SHELL NUCLEI by L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. Association EURATOM - C.N.E.N. (European Atomic Energy Community and Comitato Nazionale per l'Energia Nucleare) Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione di Milano under the Euratom contract No. 001-60-12 MPAI Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. The angular distribution of deuterons from the reaction Fe56(n,d) Mn55 has been measured for the / = 3 transition to the ground state of Mn55. A good fit is found with DWBA calculations. A satisfactory agreement is also obtained between the experimental values of the cross section for the transition to the ground state of the final nucleus in a series of isotopes belonging to the f7 proton shell and the theoretical values obtained from the shell model in the j-j coupling limit by means of DWBA calculations. E U R 4 4 8 . e REPRINT THE (n,d) PICK-UP REACTION ON f7 PROTON SHELL NUCLEI by L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. Association EURATOM - C.N.E.N. (European Atomic Energy Community and Comitato Nazionale per l'Energia Nucleare) Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione di Milano under the Euratom contract No. 001-60-12 MPAI Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. The angular distribution of deuterons from the reaction Fe56(n,d) Mnõõhas been measured for the / = 3 transition to the ground state of Mn55. A good fit is found with DWBA calculations. A satisfactory agreement is also obtained between the experimental values of the cross section for the transition to the ground state of the final nucleus in a series of isotopes belonging to the f7 proton shell and the theoretical values obtained from the shell model in the j-j coupling limit by means of DWBA calculations. 2 . E : 2.G Nuclear Physics 46 (1963) 73-77; © North-Holland Publishing Co., Amsterdam Not to be reproduced by photoprint or microfilm without written permission from the publisher THE (n,d) PICK-UP REACTION O N f, PROTON SHELL NUCLEI 2 L. COLLI t , E. G A D I O L I , S. MICHELETTI t t and D. L U C I O N I Istituto di Scienze Fisiche dell' Universita, Milano Î Received 18 December 1962 Abstract: The angular distribution of deuterons from the reaction Fe 5 0 (n ,d) Mn 5 5 has been measured for the 1=3 transition to the ground state of Mn5 5 . A good fit is found with DWBA calculations. A satisfactory agreement is also obtained between the experimental values of the cross section for the transition to the ground state of the final nucleus in a series of isotopes belonging to the f? proton shell and the theoretical values obtained from the shell model in the j-j coupling limit by means of DWBA calculations. 1. Introduction The absolute values of the cross-section, together with the angular distributions of the particles emitted, are the most important experimental data needed to under-stand a reaction mechanism from a comparison with the theory and eventually to determine the nuclear parameters involved. In a previous group of experiments1-2), we have studied the (n,d) reaction on the nuclei between Sc45 and Ni60 . The intensity of the transition leading to the ground state of the residual nucleus has been measured for these nuclei at an average laboratory scattering angle of 15°. In order to obtain more complete data on these reactions, we have successively undertaken the measure-ment of the angular distribution of the emitted deuterons in the cases of Fe54 and of Fe5 6; we report on the latter in this paper. We have compared the complete group of results with the predictions given by the DWBA theory as calculated by Satchler3), finding that it gives a rather good description of the reaction mechanism. 2. Experimental Apparatus and Results The measurement of the angular distribution of deuterons from the reaction Fe56(n, d)Mn 5 5 has been made with the apparatus described in the preceeding papers1-2). Neutrons of 14 MeV energy, obtained by the reaction D + T are used to bombard the target of the Fe56 isotope, and the emitted deuterons are counted and analysed in energy by means of a telescope of proportional and scintillation counters. Other charged particles than the deuterons are excluded by means of the usual energy-energy loss technique. The peak of deuterons corresponding to the transition to the ground state of the t and Laboratori C. [ .S .E. , Milano, t t and I . N . F . N . , Sezione di Milano. * Work done under the research Contract Eura tom-CNEN. 73 ÍÍÍHiííftifii.'BfíWtífctíríAiSflí «lil 

THE (n,d) PICK-UP REACTION OF F7/2 PROTON SHELL NUCLEI. EUR 448.e

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Tir ι.'>Jiii-'Wrif' 
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This document was prepared under the sponsorship of the Commission of the European 
Atomic Energy Community (EURATOM). 
•4. X J. Χ " XT. ■ 1 . t . 1 Í 
ion, its contractors nor any person acting on their behalf : Neither the EURATOM Commission 
Make any warranty or representation, express or implied, with respect to the accuracy, 
completeness, or usefulness of the information contained in this document, or that the use 
of any information, apparatus, method, or process disclosed in this document may not 
infringe privately owned rights; or 
2° — Assume any liability with respect to the use of, or for damages resulti: 
any information, apparatus, method or process disclosed in this document. 
The authors' names are listed in alphabetical order. 
This reprint is intended for restricted distribution only. It reproduces, 
by kind permission of the publisher, an article from "NUCLEAR 
PHYSICS", 46 ­ 1963, 73­77. For further copies please apply to 
North­Holland Publishing Company ­ P.O. Box 103 — Amsterdam, 
(Netherlands). 
Dieser Sonderdruck ist für eine beschränkte Verteilung bestimmt. Die 
Wiedergabe des vorliegenden in „NUCLEAR PHYSICS", 46 ­ 1963, 
73­77. erschienenen Aufsatzes erfolgt mit freundlicher Genehmigung 
des Herausgebers. Bestellungen weiterer Exemplare sind an North­
Holland Publishing Company ­ P.O. Box 103 — Amsterdam (Nether­
lands), zu richten, l'.fåft 
Ce tiré­à­part est exclusivement destiné à une diffusion restreinte. Il 
reprend, avec l'aimable autorisation de l'éditeur, un article publié dans 
le «NUCLEAR PHYSICS», 46 ­ 1963, 73­77. Tout autre exemplaire^ 
de cet article, doit être demandé à North­Holland Publishing Company 
­ P.O. Box 103 — Amsterdam (Netherlands). 
Questo estratto è destinato esclusivamente ad una diffusione limitata. 
Esso 'l'iwf' ^sso ^ s^° ripr°dotto, per gentile concessione dell'Editore, da 
«NUCLEAR PHYSICS», 46 ­ 1963, 73­77. Ulteriori copie dell'articolo 
debbono essere richieste a North­Holland Publishing Company - P.O "Pili Box 103 — Amsterdam (Netherlands). pi! 
Deze overdruk is slechts voor beperkte verspreiding bestemd. Het artikel 
is met welwillende toestemming van de uitgever overgenomen uit 
„NUCLEAR PHYSICS", 46 ­ 1963, 73­77. Meer exemplaren kunnen 
besteld worden bij North­Holland Publishing Company ­ P.O. Box 103 
—· Amsterdam (Netherlands) 
E U R 4 4 8 . e 
REPRINT 
THE (n,d) PICK-UP REACTION ON f, PROTON SHELL NUCLEI by 
L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. 
Association EURATOM - C.N.E.N. 
(European Atomic Energy Community and Comitato Nazionale per l'Energia 
Nucleare) 
Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione 
di Milano under the Euratom contract No. 001-60-12 MPAI 
Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. 
The angular distribution of deuterons from the reaction Fe56(n,d) Mn55 has been 
measured for the / = 3 transition to the ground state of Mn55. A good fit is 
found with DWBA calculations. A satisfactory agreement is also obtained 
between the experimental values of the cross section for the transition to the 
ground state of the final nucleus in a series of isotopes belonging to the 
f7 proton shell and the theoretical values obtained from the shell model in 
the j-j coupling limit by means of DWBA calculations. 
E U R 4 4 8 . e 
REPRINT 
THE (n,d) PICK-UP REACTION ON f, PROTON SHELL NUCLEI by 
L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. 
Association EURATOM - C.N.E.N. 
(European Atomic Energy Community and Comitato Nazionale per l'Energia 
Nucleare) 
Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione 
di Milano under the Euratom contract No. 001-60-12 MPAI 
Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. 
The angular distribution of deuterons from the reaction Fe56(n,d) Mn55 has been 
measured for the / = 3 transition to the ground state of Mn55. A good fit is 
found with DWBA calculations. A satisfactory agreement is also obtained 
between the experimental values of the cross section for the transition to the 
ground state of the final nucleus in a series of isotopes belonging to the 
f7 proton shell and the theoretical values obtained from the shell model in 
the j-j coupling limit by means of DWBA calculations. 
E U R 4 4 8 . e 
REPRINT 
THE (n,d) PICK-UP REACTION ON f7 PROTON SHELL NUCLEI by 
L. COLLI, E. GADIOLI, D. LUCIONI and S. MICHELETTI. 
Association EURATOM - C.N.E.N. 
(European Atomic Energy Community and Comitato Nazionale per l'Energia 
Nucleare) 
Work performed by Istituto Nazionale di Fisica Nucleare (I.N.F.N.) - Sezione 
di Milano under the Euratom contract No. 001-60-12 MPAI 
Reprinted from "NUCLEAR PHYSICS" 46 - 1963, pp. 73-77. 
The angular distribution of deuterons from the reaction Fe56(n,d) Mnõõhas been 
measured for the / = 3 transition to the ground state of Mn55. A good fit is 
found with DWBA calculations. A satisfactory agreement is also obtained 
between the experimental values of the cross section for the transition to the 
ground state of the final nucleus in a series of isotopes belonging to the 
f7 proton shell and the theoretical values obtained from the shell model in 
the j-j coupling limit by means of DWBA calculations. 

2 . E : 2.G 
Nuclear Physics 46 (1963) 73-77; © North-Holland Publishing Co., Amsterdam 
Not to be reproduced by photoprint or microfilm without written permission from the publisher 
THE (n,d) PICK-UP REACTION O N f, PROTON SHELL NUCLEI 
2 
L. COLLI t , E. G A D I O L I , S. MICHELETTI t t and D. L U C I O N I 
Istituto di Scienze Fisiche dell' Universita, Milano Î 
Received 18 December 1962 
Abstract: The angular distribution of deuterons from the reaction Fe 5 0 (n ,d) Mn 5 5 has been 
measured for the 1=3 transition to the ground state of Mn5 5 . A good fit is found with DWBA 
calculations. A satisfactory agreement is also obtained between the experimental values of 
the cross section for the transition to the ground state of the final nucleus in a series of isotopes 
belonging to the f? proton shell and the theoretical values obtained from the shell model in 
the j-j coupling limit by means of DWBA calculations. 
1. Introduction 
The absolute values of the cross-section, together with the angular distributions 
of the particles emitted, are the most important experimental data needed to under-
stand a reaction mechanism from a comparison with the theory and eventually to 
determine the nuclear parameters involved. In a previous group of experiments1-2), 
we have studied the (n,d) reaction on the nuclei between Sc45 and Ni60 . The intensity 
of the transition leading to the ground state of the residual nucleus has been measured 
for these nuclei at an average laboratory scattering angle of 15°. In order to obtain 
more complete data on these reactions, we have successively undertaken the measure-
ment of the angular distribution of the emitted deuterons in the cases of Fe54 and 
of Fe5 6; we report on the latter in this paper. We have compared the complete 
group of results with the predictions given by the DWBA theory as calculated by 
Satchler3), finding that it gives a rather good description of the reaction mechanism. 
2. Experimental Apparatus and Results 
The measurement of the angular distribution of deuterons from the reaction 
Fe56(n, d)Mn 5 5 has been made with the apparatus described in the preceeding 
papers1-2). Neutrons of 14 MeV energy, obtained by the reaction D + T are used 
to bombard the target of the Fe56 isotope, and the emitted deuterons are counted 
and analysed in energy by means of a telescope of proportional and scintillation 
counters. Other charged particles than the deuterons are excluded by means of the 
usual energy-energy loss technique. 
The peak of deuterons corresponding to the transition to the ground state of the 
t and Laboratori C. [ .S .E. , Milano, 
t t and I . N . F . N . , Sezione di Milano. 
* Work done under the research Contract Eura tom-CNEN. 
73 

ÍÍÍHiííftifii.'BfíWtífctíríAiSflí «lil 



THE (n,d) PICK-UP REACTION OF F7/2 PROTON SHELL NUCLEI. EUR 448.e

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