SIGNATURE OF A PI-NN RESONANCE IN PIONIC DOUBLE-CHARGE-EXCHANGE AT LOW ENERGIES

被引：113

作者：

BILGER, R ^{[1
]}

CLEMENT, HA ^{[1
]}

SCHEPKIN, MG ^{[1
]}

机构：

[1] MOSCOW THEORET & EXPTL PHYS INST,MOSCOW,RUSSIA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.71.42

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

All currently available data on the pionic double charge exchange reaction (pi+,pi-) on nuclei exhibit a very peculiar energy dependence near T(pi)=50 MeV, while the angular distributions behave quite regularly. We demonstrate that these features find their natural explanation by a narrow resonance in the piNN subsystem with J(P)=0- and a mass of 2.065 GeV.

引用

页码：42 / 45

页数：4

共 34 条

[1] OBSERVATION OF THE DOUBLE ISOBARIC ANALOG TRANSITION O-18(PI+ , PI-) NE-18 AT 50 MEV [J].

ALTMAN, A ;

JOHNSON, RR ;

WIENANDS, U ;

HESSEY, N ;

BARNETT, BM ;

FORSTER, BM ;

GRION, N ;

MILLS, D ;

ROZON, FM ;

SMITH, GR ;

TRELLE, RP ;

GILL, DR ;

SHEFFER, G ;

ANDERL, T .

PHYSICAL REVIEW LETTERS, 1985, 55 (12) :1273-1276

[2]

ANDERL T, 1988, THESIS U BONN

[3]

ANDERL T, KFA JULSPEZ429 AJ RE

[4] PION-NUCLEUS DOUBLE CHARGE-EXCHANGE AND THE NUCLEAR SHELL-MODEL [J].

AUERBACH, N ;

GIBBS, WR ;

GINOCCHIO, JN ;

KAUFMANN, WB .

PHYSICAL REVIEW C, 1988, 38 (03) :1277-1296

[5]

Auerbach N., 1991, COMMENTS NUCL PART P, V20, P141

[6] PION DOUBLE-CHARGE-EXCHANGE REACTION ON CA-44 AT 50 MEV [J].

BAER, HW ;

LEITCH, MJ ;

MISHRA, CS ;

WEINFELD, Z ;

PIASETZKY, E ;

COMFORT, JR ;

TINSLEY, J ;

WRIGHT, DH .

PHYSICAL REVIEW C, 1991, 43 (03) :1458-1461

[7]

BAER HW, 1992, INTERNATIONAL WORKSHOP ON PIONS IN NUCLEI, P3

[8]

BAER HW, 1990, PHYS LETT B, V237, P33

[9] MEASUREMENT OF PION INDUCED DOUBLE CHARGE-EXCHANGE ON S-34 AND FE-56 AT T-PI=50 MEV [J].

BILGER, R ;

BARNETT, BM ;

CLEMENT, H ;

KRELL, S ;

WAGNER, GJ ;

JAKI, J ;

JORAM, C ;

KIRCHNER, T ;

KLUGE, W ;

METZLER, M ;

WIESER, R ;

RENKER, D .

PHYSICS LETTERS B, 1991, 269 (3-4) :247-251

[10]

Bilger R., 1992, Zeitschrift fur Physik A (Hadrons and Nuclei), V343, P491, DOI 10.1007/BF01289829

← 1 2 3 4 →