HIGH-PRECISION MEASUREMENT OF THE P(P)OVER-BAR-]N(N)OVER-BAR CHARGE-EXCHANGE DIFFERENTIAL CROSS-SECTION

被引：19

作者：

BIRSA, R

BRADAMANTE, F

BRESSAN, A

DALLATORRECOLAUTTI, S

GIORGI, M

LAMANNA, M

MARTIN, A

PENZO, A

SCHIAVON, P

TESSAROTTO, F

ZANETTI, AM

DEFALCO, A

MACCIOTTA, MP

MASONI, A

PUDDU, G

SERCI, S

AHMIDOUCH, A

HEER, E

HESS, R

MASCARINI, C

RAPIN, D

ARVIEUX, J

BERTINI, R

FAIVRE, JC

KUNNE, RA

AGNELLO, M

机构：

[1] UNIV TRIESTE, I-34127 TRIESTE, ITALY

[2] INFN, CAGLIARI, ITALY

[3] UNIV CAGLIARI, I-09100 CAGLIARI, ITALY

[4] UNIV GENEVA, DPNC, CH-1211 GENEVA 4, SWITZERLAND

[5] CENS, IN2P3, CNRS LNS, F-91190 GIF SUR YVETTE, FRANCE

[6] INFN, TURIN, ITALY

[7] POLITECN TORINO, TURIN, ITALY

来源：

PHYSICS LETTERS B | 1994年 / 339卷 / 04期

关键词：

D O I：

10.1016/0370-2693(94)90628-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The differential pBARp --> nBARn change-exchange cross section has been measured at the CERN Low Energy Antiproton Ring (LEAR), at two incident pBAR momenta, 601 and 1202 MeV/c. The main features of the differential cross-section near the forward direction, i.e. a sharp peak at 0-degree scattering angle followed by an energy dependent dip-bump structure, are confirmed and measured with good precision and high statistical accuracy. The data show very clearly that the shape of the cross-section is a manifestation of the pion-exchange amplitude, and a simple extrapolation to the pion pole already indicates that the pion-nucleon coupling constant f2c can be determined with good precision.

引用

页码：325 / 331

页数：7

共 20 条

[1] PLASTIC DETECTORS FOR MEDIUM ENERGY NEUTRONS [J].

AHMIDOUCH, A ;

BACH, P ;

HESS, R ;

KUNNE, RA ;

LECHANOINELELUC, C ;

MASCARINI, C ;

RAPIN, D ;

ARVIEUX, J ;

BERTINI, R ;

CATZ, H ;

FAIVRE, JC ;

PERROTKUNNE, F ;

BRADAMANTE, F ;

MARTIN, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1993, 326 (03) :538-548

[2] DETERMINATION OF THE PI-NN COUPLING-CONSTANT FROM ELASTIC PION-NUCLEON SCATTERING DATA [J].

ARNDT, RA ;

LI, ZJ ;

ROPER, LD ;

WORKMAN, RL .

PHYSICAL REVIEW LETTERS, 1990, 65 (02) :157-158

[3]

Ashmore A., 1962, NUCL PHYS, V36, P258

[4] THE LIMITED STREAMER TUBES FOR EXPERIMENT PS199 AT LEAR [J].

BIRSA, R ;

CILIBERTI, P ;

TORRECOLAUTTI, SD ;

LAMANNA, M ;

MARTIN, A ;

MENON, G ;

TESSAROTTO, F ;

MASONI, A ;

PUDDU, G ;

AGNELLO, M ;

IAZZI, F ;

DEMARCO, N ;

MUSSO, A ;

PICCOTTI, A ;

SIMONETTI, L .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1991, 300 (01) :43-52

[5] MEASUREMENT OF THE ANALYZING POWER OF THE CHARGE-EXCHANGE (P)OVER-BAR-P-](N)OVER-BAR-N REACTION IN THE MOMENTUM RANGE 546-1287 MEV/C AT LEAR [J].

BIRSA, R ;

BRADAMANTE, F ;

BRESSAN, A ;

TORRECOLAUTTI, SD ;

GIORGI, M ;

LAMANNA, M ;

MARTIN, A ;

PENZO, A ;

SCHIAVON, P ;

TESSAROTTO, F ;

MACCIOTTA, MP ;

MASONI, A ;

PUDDU, G ;

SERCI, S ;

NIINIKOSKI, T ;

RIJLLART, A ;

AHMIDOUCH, A ;

HEER, E ;

HESS, R ;

LECHANOINELELUC, C ;

MASCARINI, C ;

RAPIN, D ;

CATZ, H ;

FAIVRE, JC ;

PERROTKUNNE, F ;

ARVIEUX, J ;

BERTINI, R ;

KUNNE, RA ;

AGNELLO, M ;

IAZZI, F ;

MINETTI, B ;

BRESSANI, T ;

CHIAVASSA, E ;

DEMARCO, N ;

MUSSO, A ;

PICCOTTI, A .

NUCLEAR PHYSICS B, 1993, 403 (1-2) :25-61

[6]

BODGANSKY M, 1976, PHYS LETT, V62, P114

[7]

BRESSAN A, INFN TC9314 INT REP

[8] MEASUREMENT OF THE PBARP-]NBARN CROSS-SECTION AT LOW PBAR MOMENTA [J].

BRUCKNER, W ;

DOBBELING, H ;

GUTTNER, F ;

VONHARRACH, D ;

KNEIS, H ;

MAJEWSKI, S ;

NOMACHI, M ;

PAUL, S ;

POVH, B ;

RANSOME, RD ;

SHIBATA, TA ;

TREICHEL, M ;

WALCHER, T .

PHYSICS LETTERS B, 1986, 169 (2-3) :302-308

[9] PROPOSAL FOR DETERMINING THE PION-NUCLEON COUPLING CONSTANT FROM THE ANGULAR DISTRIBUTION FOR NUCLEON-NUCLEON SCATTERING [J].

CHEW, GF .

PHYSICAL REVIEW, 1958, 112 (04) :1380-1383

[10] TOTAL AND DIFFERENTIAL CROSS-SECTIONS FOR REACTION PBAR+P-]NBAR+N AT 1.13 GEV-C [J].

COLEBOURNE, A ;

DONALD, RA ;

EDWARDS, DN ;

BOGDANSKI, M ;

JEANNET, E ;

GAILLOUD, M .

NUCLEAR PHYSICS B, 1974, 70 (02) :205-214

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