Scattering and reaction cross-sections measured at SPES I

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Scattering and reaction cross-sections measured at SPES I

G. Bruge

To cite this version:

G. Bruge. Scattering and reaction cross-sections measured at SPES I. Journal de Physique, 1979, 40

(7), pp.635-655. �10.1051/jphys:01979004007063500�. �jpa-00209148�

635

Scattering ^and reaction cross-sections measured at SPES I

Results compiled by :

G. Bruge

DPh-N/ME, ^CEN Saclay, ^B.P. 2, 91190 Gif-sur-Yvette, France

(Reçu ^{le 28 novembre} 1978, révisé le 13 mars 1979, accepté ^{le 14 mars} 1979)

Résumé.

Cet article regroupe l’ensemble des sections efficaces différentielles qui ^ont été mesurées pour des réactions à deux _corps aux énergies intermédiaires, grâce ^au spectromètre magnétique ^{à haute} résolution SPES I à Saclay, de février 1972 à fevrier 1977.

Abstract.

This article gives all the differential cross-sections for two body ^{reactions at} intermediate energy measured by ^{means of the} high resolution magnetic spectrometer ^SPES I, ^at Saclay, February ^{1972 to} February

1977.

LE JOURNAL DE PHYSIQUE TOME 40, ^JUILLET 1979, ¹

Classification Physics ^Abstracts

25.40

25.50

25.60

Introduction.

The high resolution spectrometer SPES 1 was set up ^at the synchrotron ^SATURNE laboratory (Saclay) in 1971 in order to investigate

intermediate _energy two body reactions. This _magne- tic spectrometer ^was designed by ^J. Thirion, ^{P. Birien}

and J. Saudinos (DPh-N/ME, Saclay) [a] ^to give typically ^{a 100 keV} energy resolution for 1 GeV _pro- tons. It consists of a window frame type magnet operated ^{in the} energy loss mode. The total solid

angle ^{is 3.66 x 10-3 sr and the total} analysed angular

momentum width is ± ⁴ % ^{of the central momentum.}

The first tests in a beam were made on February ¹⁹⁷² and, ^{two months} later, the nominal _energy resolution

was achieved by measuring ^the scattering of 1.05 GeV protons by ^{a thin} target ^of 2°8Pb. The spectrometer

was used for two body experiments up ^to February 1977, i.e. few months before the SATURNE shut down. At present, before the new synchrotron ^Saturne

beams are available, ^{it is} opportune ^to publish ^the

full collection of all data measured by ^{means of the}

SPES 1 facility before the Saturne shut down and the creation of the Saturne National Laboratory.

In order to keep ^this publication ^{to a reasonable}

size the following conventions have been chosen :

-

Cross-section tables are presented ^{as usual for}

low _energy nuclear physics measurements i.e. : diffe- rential cross-section (a

deT/dQ) ^versus the reaction

angle (0) ^{in the centre of mass} system. ^{The errors} given

in the tables correspond ^to the relative errors due to statistics (in ^{counts or} monitoring), background subtraction, ^relative geometrical ^or detection effi- ciencies and relative monitoring. ^{Due to} the different

origins of the results these errors are given ^{either as}

relative values ô (in percent) ^or absolute values AJ in the suitable units.

-

This does not include the absolute normalization

uncertainty ^{which is} given ^{as L1} (in percent) ^{for each} experiment. ^This uncertainty includes beam and target calibrations, total solid angle, global efficiency

and eventual decay corrections. Most of these data have been calibrated by ^{means of} the 12e(p, pu) 1 in

reaction, the P decay ^{of 11C} being ^measured by ^means

of a 2 n counter [b]. ^The precision ^{of the} measurement has been estimated to 5 % ^{but one has also to take}

into account the uncertainty ^{on the} 12C(p, pn)11C

cross-section at the corresponding energy [c].

Deuteron and a-particle absolute normalization have been obtained in the same way using ^{the measu-}

rements of the 12C(d, dn) 1 iC [dl ^and 12C(CX, an) 11 C

reactions respectively [e] ^{which were} especially ^made.

The full angular aperture ^{of the} spectrometer ^is 2.8 degrees in which 0.25 or 0.50 degree angular ^bins

are considered. Thus, ^the cross-sections are folded

on this finite angular aperture ^{which is} given ^as 88(deg.) for each reaction. In a few cases an unfolding procedure ^{has been} applied [f, g]. This is indicated in front of the corresponding tables. The knowledge

of the absolute value of the reaction angle ^is important

in this energy range ^so that the precision ^{on the zero} degree direction is given ^{for each case as} A0(deg.).

The data published here have been used by many authors. In order to save time and _{space 1} have chosen to give ^{for each} experiment ^{the name of the} physicists

who participated ^{in the} experimental measurements, the reference corresponding ^{to the first} publication

Article published online by EDP Sciences and available at http://dx.doi.org/10.1051/jphys:01979004007063500

of the data and only the papers involving ^{the above}

named authors.

Parts of this data have been sent as private ^commu-

nications. The present ^{tables are} definitive _{and super-} sede all the previous values which _may have been sent.

The present ^{tables concern the} following ^reactions

which will be considered successively :

e proton-nucleus scattering,

e deuteron-nucleus scattering,

e a-particle-nucleus scattering,

e one neutron pick-up ^reaction (p, d),

. one neutron stripping ^reaction (d, p),

0 n + coherent production,

e n - coherent production.

References [a] THIRION, J., BIRIEN, ^{P. and} SAUDINOS, J., Projet ^de spectrométrie

à haute énergie ^{et à} haute résolution utilisant le faisceau ^de

Saturne. Note CEA-N-1248, ^1970.

[b] QUECHON, H., Private communication.

[c] ^The (p, pn) cross-sections used for calibration are taken from the

compilation ^{of J. TOBAILEM et al. Note CEA-N-1466} (1, 2, 3) ^1971.

[d] QUECHON, ^{H. et} al., Private communication.

[e] RADIN, J., Phys. ^{Rev. C 2} (1970) ^{793 and} RADIN, J. et al., Private communication.

[f] ALKHAZOV, ^G. D., Private communication.

[g] BEURTEY, R. et al., ^{Nucl. Instrum. Methods 153} (1978) ^297.

1. Proton-nucleus scattering.

^{Most of} the results

concern proton-nucleus scattering measurements.

Generally they ^{have been} published separately ^but they ^have also been included in the following ^review

papers :

THIRION, J., Proc. V. Int. Conf. ^on high energy physics and nuclear structure, Uppsala, Sweden, ^June 18-22, 1973, ^G. Tibell, ed. (North Holland, American Elsevier Almqvist ^and

Wiksell International Edit.), p. 168.

IGO, ^G. J., ^Proc. of ^{the VI. Int.} Conf. ^on high energy physics ^and

nuclear structure, Santa Fé and ^Los Alamos, ^{USA June} 9-13, 1975, ^{D. E.} Negle Ed., p. 63.

BEURTEY, R., High resolution magnetic spectrometry, ^lecture given

at the conference on nuclear and particle physics ^at

intermediate energy, ^June 23 to July 2, Brentwoods

College, ^Canada.

BRUGE, G., Proc. of ^the topical meeting ^on intermediate _energy.

physics, Zuoz, Switzerland, ^{March 31 to} April 10, 1976, p.194.

CHAUMEAUX, A., LAYLY, ^{V. and} SCHAEFFER, R., ^4e session ^biennale de Physique Nucléaire, ^La Toussuire, France, February ²⁸

to March 4, 1977, Lycen 77-02, ^vol. 2, p. 1.

BEURTEY, R., ^Lecture given ^at the Guilford Conference, April ^1977.

BRUGE, G., ^Proc. of ^{the VII Int.} Conf. ^on high energy physics ^and

nuclear structure, Zurich, Switzerland, August ^{29 to} September 2, 1977, ^M. Locher, ed., p. 69.

CHAUMEAUX, A., LAYLY, ^{V. and} SCHAEFFER, R.,

. Phys. ^{Lett. 72B} (1977) ^33.

. Contribution to the international conference ^{on nuclear}

structure, Tokyo, Japan, September 5-10, 1977, p. 758.

. Ann. Phys. ¹¹⁶ (1978) ^247.

TERRIEN, Y., Contribution to the Int. Conf. ^on nuclear structure,

Tokyo, September 5-19,1977, p. 843.

The following ^{nuclei have been} investigated : 3He, 4He,

6L1

12C

160

40,42,44,48Ca > 48T1

58,60,62,64 Ni and 208Pb which are considered successively.

PROTON ELASTIC SCATTERING ON 3He Experiment ^{at 415} and 715 MeV

BEURTEY, R., BIMBOT, ^L. (2), BRUGE, ^G. COUVERT, P., FRASCARIA,

R. (2), GARRETA, D., ^LE BORNEC, ^Y. (2), LEGRAND, D.,

MORLET, ^M. (2), Moss, G. (3), TATISCHEFF, ^B. (2), TERRIEN,

Y., WILLIS, ^N. (2), Contribution J30 to the seventh Inter-

national conference ^on high energy physics and nuclear

structure, Zurich 1974, p. 218.

637

Experiment ^{at 1000 MeV}

BERTINI, ^R. (1), BEURTEY, R., BRUGE, G., CATZ, H., CHAUMEAUX, A., COMPARAT, N. (2), COUVERT, P., FAIVRE, J. C., ^FRAS-

-

CARIA, R. (2), GARRETA, D., LEGRAND, D., MARTY, N. (2),

MORLET, M. (2), TERRIEN, Y., WILLIS, ^A. (2), Contribution IV A12 to the sixth International conference ^on high energy

physics ^and nuclear structure, Santa Fé 1975, p. 210.

FRASCARIA, ^{R. et} al., Nucl. Phys. ^{A 264} (1976) ^445.

PROTON ELASTIC SCATTERING ON 4He

Experiment ^at 350, 650, ^{1050 and} 1 150 MeV ASLANIDES, ^E. (1), ^BAUER, T., BERTINI, R. (1), BEURTEY, R., Bou-

DARD, A., BROCHARD, ^F. (1), BRUGE, G., CHAUMEAUX, A., CATZ, H., FONTAINE, ^J. M., FRASCARIA, ^R. (2), GARRETA, D., GORODETZKY, ^P. (1), GUYOT, J., HIBOU, ^F. (1), ^LE-

GRAND, D., MATOBA, ^M. (5), TERRIEN, Y., THIRION, J.,

Phys. ^{Lett. 68B} (1977) ^221.

The first measurement of p-4He scattering ^{at 1.05 GeV was made} by : BAKER, ^{S. D.} (4), BERTINI, ^R. (1), BEURTEY, R., ^BRO- CHARD, F. (1), BRUGE, G., CHAUMEAUX, A., DURAND, J. M., FAIVRE, ^J. C., FONTAINE, J. M., GARRETA, D., HIBOU, F. (1), LEGRAND, D., SAUDINOS, J., THIRION, J., The

corresponding ^{data have been} published by BAKER, ^{S. D.}

et al., ⁱⁿ Phys. Rev. Lett. 32 (1974) 839 without absolute normalization (see ^{the text of the} letter). This normali- zation was obtained later in a further experiment ^and published ^{at the same time as} the others at 320, 650 and 1 150 MeV (Phys. ^{Lett. 68B} (1977) 221). ^Thus only ^the

values which have been sometimes referred to as the so

called « Saclay ^{II » data are valid.}

Experiment ^{at 600} MeV

ASLANIDES, ^E. (1), BAUER, T., BERTINI, ^R. (1), BEURTEY, R., BIMBOT,

L. (2), BOUDARD, A., BROCHARD, ^F. (1), BRUGE, G., CHAUMEAUX, A., COUVERT, P., DUHM, H. H. (6) , GARRETA,

D., GORODETZKY, ^P. (1), HIBOU, ^F. (1), ^LE BORNEC, ^Y. (2) MATOBA, ^M. (5), TATISCHEFF, B. (2), TERRIEN, Y., ^Published

in Note CEA-N-1861, p. 198.

Experiment ^{at 1040 MeV}

BAKER, ^{S. D.} (4), ^{BERTINI, R.} e), BEURTEY, R., BROCHARD, F. (1),

BRUGE, G., CHAUMEAUX, A., DURAND, J. M., FAIVRE, ^J. C., FONTAINE, J. M., GARRETA, D., HIBOU, ^F. (1), LEGRAND, Caution : The absolute normalization is arbitrary

D., SAUDINOS, J., THIRION, J., Published in Note CEA-N

1700, p. 131.

PROTON SCATTERING BY 12C . Experiment ^{at 600 MeV}

COUVERT, P., BRUGE, G., BEURTEY, R., BOUDARD, A., CHAUMEAUX, A., GARÇON, M., GARRETA, D., GUGELOT, ^{P. C.} (’), MOSS, G. A. (8), PLATCHKOV, S., TABET, ^J. P., TERRIEN, Y., THIRION, J., BIMBOT, ^L. (2), ^LE BORNEC, Y. (2), ^TATIS-

CHEFF, B. (2), Previously unpublished.

Experiment ^{at 1040 MeV}

BERTINI, R. (1), BEURTEY, R., BROCHARD, F. (1), BRUGE, G., CATZ,

H., CHAUMEAUX, A., DURAND, ^J. M., FAIVRE, ^J. C.,

FONTAINE, J. M., GARRETA, D., HENDRIE, ^{D. L.} (9),

HIBOU, F. (1), LEGRAND, D., SAUDINOS, J., THIRION, J.,

Published in Phys. Lett. 45B (1973) ^119.

641

PROTON SCATTERING BY 16O

BAUER, T., BEURTEY, R., BOUDARD, A., BRUGE, G., CHAUMEAUX, A., CLEGG, ^T. (10), ESCUDIÉ, ^J. L., FONTAINE, J. M., GARÇON, M., LOMBARD, R., MATOBA, ^M. (5), TABET, ^J. P., TARRATS, A., TERRIEN, Y., VAN OERS, ^W. ("), Previously unpublished.

PROTON SCATTERING BY 411 Ca

BAUER, T., BEURTEY, R., BOUDARD, A., BRUGE, G., CHAUMEAUX, A., CLEGG, ^T. (1°), ESCUDIÉ, ^J. L., FONTAINE, ^J. M., GARçON, M., LOMBARD, R., MATOBA, M. (1), TABET, ^J. P., TARRATS, A., TERRIEN, Y., ^VAN OERS, ^W. (11 ), Previously unpublished.

BAKER, S. D. (4), BERTINI, R. (1), BEURTEY, R., BROCHARD, F. (4),

BRUGE, G., CHAUMEAUX, A., DURAND, ^J. M., FAIVRE, J. C.,

FONTAINE, ^J. M., GARRETA, D., HIBOU, ^F. (’), LEGRAND,

D., SAUDINOS, J., THIRION, J., Published in Note CEA-N-

1700, p. 133.

PROTON SCATTERING BY

ALKHAZOV, G. e2), BAUER, T., BEURTEY, R., BOUDARD, A., BRUGE, G., CHAUMEAUX, A., COUVERT, P., CVIJANOVICH, ^G. (13), DUHM, ^{H. H.} (6), FONTAINE, ^J. M., GARRETA, D., ^KULI- KOV, A. e2), LEGRAND, D., LUGOL, J. C., SAUDINOS, J., THIRION, J., VOROBYOV, A. (12), Contribution IVA15 to the VI International conference ^on high energy physics ^and

nuclear structure, ^June 9-14, 1975, ^Santa Fé, USA and Nucl. Phys. ^{A 274} (1976) ^443.

The aim of this experiment being ^to compare the variation of the nuclear matter density ^{as a function}

of the atomic number, especial ^{care was taken with}

these measurements. Especially, ^{the beam direction}

was carefully checked all along ^the experiment using

a split wire chamber close to the target. ^{Such a measu-}

rement prevented any angular shift. The beam direc- tion was determined with a ± ^0.05 degree accuracy.

The relative angular calibrations between two measu- rements was better then ± ^0.05 deg. All the data obtained in this experiment have been corrected from the finite extension of the angular ^{bins. For these}

data bO

0.25 deg. ^{and J}

^{± 7} %.

643

645

PROTON SCATTERING BY THE NICKEL ISOTOPES.

ALKHAZOV, G. D. e2), BEURTEY, R., BOUDARD, A., BRUGE, G., CATZ, H., CHAUMEAUX, A., COUVERT, P., ESCUDIÉ, ^J. L., FONTAINE, ^J. M., GARÇON, M., GUYOT, J., LEGRAND, D., For all isotopes ^bO

^0.25 deg., ^e9

± ^0.17 deg.,

d

± ⁷ %. ^The data for the isotopes ^{58 and 60 are}

LUGOL, ^J. C., LOMBARD, ^R. M., MATOBA, M. (5), TERRIEN, Y., Published in Phys. ^{Lett. 67B} (1977) ^402.

LOMBARD, ^R. M., Lett. Nuovo Cimento 18 (1977) ^415.

corrected from the finite extension of the angular ^bins.

Data have been taken also for the Ni isotopes ⁶²

and 64. After a further examination of the results it

appeared ^{that the 62Ni} experiment ^{must be discarded}

because of too large uncertainties in the measurements.

The 64 Ni data are being completely reanalysed. Only

the table for elastic scattering ^is given here. Tables for the 2+ and 3- states in 64 Ni will be published ^later.

PROTON SCATTERING BY

BAUER, T., BEURTEY, R., BOUDARD, A., BRUGE, G., CHAUMEAUX, A., CLEGG, T. (10), ESCUDIÉ, ^J. L., FONTAINE, J. M., GARÇON, M., LOMBARD, R., MATOBA, ^M. (1), TABET, J. P., TARRATS, A., TERRIEN, Y., ^VAN OERS, ^{W. T. H.} (11), Previously unpublished.

(1) Differential cross-section tables (Phys. ^{Lett. 45B} (1973) 119)

for the early ^{1.04 GeV} p-2°8Pb scattering experiment ^{are not} given.

Uncertainties have been found recently in both relative and absolute

normalization. The experiment ^is being repeated.

647

2. Deuteron-nucleus scattering.

^The following

nuclei have been investigated : 6Li, ^{12C and 160.}

In all the experiments Td

^{698 MeV.}

BEURTEY, R., BIMBOT, ^L. (1), BOUDARD, A., BRUGE, G., CHAUMEAUX, A., CoUVERT, P., ESCUDIÉ, ^J. L., FONTAINE, J. M., GARÇON, M., ^LE BORNEC, Y., SCHECTER, ^L. (14), TABET, ^J. P., TERRIEN, Y., Published in Note CEA-N-2026, p. 110.

DEUTERON SCATTERING BY 6Li

DEUTERON SCATTERING BY 12C DEUTERON SCATTERING ^BY 16O

649

3. oe-Partide-nude* scattering.

The nuclei inves-

tigated ^are 12C, 4oCa,

42Ca,

^{44Ca and 48Ca.}

a-PARTICLE SCATTERING BY 12C

CHAUMEAUX, A., BRUGE, G., BAUER, T., BERTINI, ^R. (1), BOUDARD, A., CATZ, H., COUVERT, P., DUHM, H. H. (6), FONTAINE,,

J. M., GARRETA, D., LUGOL, ^J. C., Published in Nucl.

Phys. ^{A 267} (1976) ^413.

Only errors > ³ % ^{have been} reported ^{in the tables.}

a-PARTICLE SCATTERING BY THE Ca ISOTOPES

ALKHAZOV, ^G. (1Z), BAUER, T., BERTINI, R. (1), BIMBOT, ^L. (2) BING, ^0. (1), BOUDARD, A., BRUGE, G., CATZ, H., ^CHAU-

MEAUX, A., COUVERT, P., FONTAINE, ^J. M., HIBOU, ^F. (1), IGO, ^{G. J.} (15), LUGOL, J. C., MATOBA, ^M. (5), ^Published

in Nucl. Phys. ^{A 280} (1977) ^365.

Caution : These data are corrected from the finite extension of the angular ^bins.

In this series of experiments ^{the same} precautions

have been taken as for the 1044 MeV proton scattering

measurements on the same isotopes. ^For all the Ca

isotopes :

a-PARTICLE SCATTERING ^BY 40 Ca

a-PARTICLE SCATTERING BY 42Ca

a-PARTICLE SCATTERING BY 44Ca

a-PARTICLE SCATTERING BY 48Ca

651

4. One neutron pick-up (p, d) ^reactions.

ONE NEUTRON PICK-UP (p, d) ^{REACTION ON 4He}

BAUER, T., BOUDARD, A., CATZ, H., CHAUMEAUX, A., COUVERT, P., GARÇON, M., GUYOT, J., LEGRAND, D., LUGOL, J. C., MATOBA, ^M. (5), MAYER, B., TABET, ^J. P., TERRIEN, Y., Published in Phys. ^{Lett. 67B} (1977) 265.

ONE NEUTRON PICK-UP (p, d) REACTION ON 12C

BAKER, ^S. D., BERTINI, ^R. (4), BEURTEY, R., BROCHARD, ^F. (1), BRUGE, G., CATZ, H., CHAUMEAUX, A., CVIJANOVICH, ^G.

(13), DURAND, ^J. M., FAIVRE, J. C., FONTAINE, ^J. M., GARRETA, D., HIBOU, ^F. (1), LEGRAND, D., LUGOL, ^J. C., SAUDINOS, J., THIRION, ^J.

Caution : This experiment ^{has been} published ⁱⁿ Physics ^Letters (Phys. ^{Lett. 52B (1974)} 57). ^{All the}

data plotted ^{in the} figures ^{have been found to be too}

small by ^{a factor of 1.5 due to an error} in the determi- nation of the solid angles ^{for this} experiment. ^The

present data have been corrected so that they supersede

the previous ^tables.

A star appearing ^{in the error column, means that}

the corresponding cross-section value must be consi-

dered as an upper limit.

5. One neutron stripping (d, p) reactions.

The

one neutron stripping (d, p) reaction has been studied at Td

^{698 MeV on} 6Li, ^{9Be and 160.}

BEURTEY, R., BIMBOT, ^L. (2), BOUDARD, A., BRUGE, G., CHAUMEAUX, A., COUVERT, P., ESCUDIÉ, ^J. L., FONTAINE, J. M., GARÇON, M., ^LE BORNEC, ^Y. (2), SCHECTER, ^L. e4), TABET, ^J. P., TERRIEN, Y., ^{Published in Note} CEA-N-2026, p. 115.

A star appearing ^{in the error column, means that}

the corresponding cross-section value must be consi- dered as an upper limit.

ONE NEUTRON STRIPPING (d p) REACTION ON 9Be

653

ONE NEUTRON STRIPPING (d, p) ^{REACTION ON 160. -} Only ^the ground ^state and the level at 0.871 MeV

are single ^{states. The other} proton groups correspond

to multiplets. Thus for each of them the integration

has been made over an energy width which is given

as bE.

6. Coherent pion production : (p, 1t:f:) ^reactions.

-

COHERENT PRODUCTION OF 7r’, (p, 7L + ) ^REACTION

ON 2H

ASLANIDES, ^E. (1), BAUER, T., BERTINI, ^R. (1), BEURTEY, R., BIMBOT, L. (2), BING, ^O. (1’), BOUDARD, A., BROCHARD, F., BRUGE, G., CATZ, H., CHAUMEAUX, A., COUVERT, P., ^DUCHA-

ZEAUBENEIX, J. C., DUHM, H. (6), GARRETA, D., GORO- DETZKY, P. (1), HABAULT, J., HIBOU, ^F. (1), IGO, ^G. (15),

LE BORNEC, ^Y. (2), LUGOL, J. C., MATOBA, ^M. (-), ^TATIS-

CHEFF, B. (2), TERRIEN, Y., ^{Published in} Phys. ^{Rev. Lett.}

39 (1977) ^1654.

COHERENT PRODUCTION OF 7E’, (p, 7r’) ^REACTION ON 3He

TATISCHEFF, ^B. (2), BEURTEY, R., BIMBOT, L. (2), BRUGE, G., ^FRAS-

CARIA, R. (2), COUVERT, P., GARRETA, D., ^LE BORNEC,

Y. (2), LEGRAND, D., MORLET, ^M. (2), Moss, ^{G. A.} (8),

TERRIEN, T., WILLIS, ^N. (2), ^{Published in} Phys. ^{Lett. 63B}

(1976) 158.

COHERENT PRODUCTION OF 7r+, (p, 7r+) ^REACTION

ON 6Li

ASLANIDES, E. (1), BAUER, T., BERTINI, R. (1), BEURTEY, R., BIMBOT,

L. (1), BOUDARD, A., BROCHARD, F. ( 1 ), BRUGE, G., CHAUMEAUX, A., COUVERT, P., DUHM, ^{H. H.} (6), GARRETA, D., GORODETZKY, ^P. (1), HIBOU, F. (1), ^LE BORNEC, ^Y. (2) MATOBA, M. (5), TATISCHEFF, B. (2), TERRIEN, Y., ^Published

in Phys. ^{Lett. 69B} (1977) ^433.

COHERENT PRODUCTION OF 7L+, (p, 7r’) ^REACTION ON 9Be

ASLANIDES, E. (1), BAUER, T., BERTINI, ^R. (1), BEURTEY, R., BIMBOT, L. (2), BING, ^O. (1), BOUDARD, A., BROCHARD, ^F. (1), BRUGE, G., CATZ, H., CHAUMEAUX, A., COUVERT, P., DUCHAZEAUBENEIX, ^J. C., DUHM, ^{H. H.} (6), GARRETA, D., GORODETZKY, ^P. (1), HABAULT, J., HIBOU, ^F. (1), IGO, G. (15), LE BORNEC, Y. (2), LUGOL, J. C., MATOBA, ^M. (5),

TATISCHEFF (2), TERRIEN, Y., ^{Published in Note CEA-N-} 1861, p. 200.

COHERENT PRODUCTION OF 03C0+’, (p, 7r’) ^REACTION

ON 1°B

BEURTEY, R., BIMBOT, ^L. (2), BING, ^O. (1’), BOUDARD, A., BRUGE, G., CHAUMEAUX, A., COUVERT, P., ESCUDIE, ^J. L., GARÇON, M., GARRETA, D., GORODETZKY, ^P. (1), ^LE BORNEC, Y. (2), SCHECTER, ^L. e4), TABET, J. P., TATISCHEFF, B. (2 ), ^TER-

RIEN, Y., ^Published in Note CEA-N-2026, p. 116.

655

COHERENT PRODUCTION OF 7T : (p, n -) ^REACTION

COUVERT, P., BRUGE, G., BEURTEY, R., BOUDARD, A., CHAUMEAUX, A., GARÇON, M., GARRETA, D., GUGELOT, P. C. (7)@

MOSS, G. A. (8), PLATCHKOV, S., TABET, ^J. P., TERRIEN, Y., THIRION, J., BIMBOT, ^L. (2), ^LE BORNEC, ^Y. (2), ^TATI-

scHEFF, B. (2), ^{Published in Phys.} Rev. Lett. 41 (1978) ^530.

For all the measurements :

For comparison ^{a few} extra measurements of the

(p, 7cl) production cross-sections for neighbouring

nuclei are given.

9Be(p, n-)10C ^{reaction at} Tp

^{613 MeV.}

Acknowledgments.

^{1 want to} acknowledge ^the

collaboration of Mrs P. Gugenberger ^{and E. Thureau}

who have edited these tables with great patience ^and competence.

Laboratory ^index

(1) Centre de Recherches Nucléaires and Université Louis- Pasteur, Strasbourg, ^France.

(2) Institut de Physique Nucléaire, Orsay, ^France.

(3) University ^of Vancouver, ^Canada.

(4) ^Rice University, Houston, Texas, ^U.S.A.

(s) Kyushu University, Fukuoka, Japan.

(6) ^{Institut für} Experimentalphysik, Hamburg, ^W. Germany.

C) University ^of Virginia, Charlottesville, Virginia, ^U.S.A.

(8) University ^of Alberta, Edmonton, Alberta, ^Canada.

(9) LBL, Berkeley, California, ^U.S.A.

(lo) University ^{of North} Carolina, ^U.S.A.

(11) University ^of Manitoba, Winnipeg, ^Canada.

(12) Leningrad Institute of Nuclear Physics, Gatchina, ^U.S.S.R.

e 3) Uppsala Collège, ^East Orange, ^New Jersey, ^U.S.A.

e4) Oregon ^State University, Corvallis, Oregon, ^U.S.A.

e5) University ^of California, ^Los Angeles, ^U.S.A.