A MEASUREMENT OF ASYMMETRY IN THE DECAY LAMBDA-C+-]LAMBDA-PI+

被引:38
作者
ALBRECHT, H
EHRLICHMANN, H
HAMACHER, T
KRUGER, A
NAU, A
NIPPE, A
REIDENBACH, M
SCHAFER, M
SCHRODER, H
SCHULZ, HD
SEFKOW, F
WURTH, R
APPUHN, RD
HAST, C
HERRERA, G
KOLANOSKI, H
LANGE, A
LINDNER, A
MANKEL, R
SCHIEBER, M
SIEGMUND, T
SPAAN, B
THURN, H
TOPFER, D
WALTHER, A
WEGENER, D
PAULINI, M
REIM, K
VOLLAND, U
WEGENER, H
MUNDT, R
OEST, T
SCHMIDTPARZEFALL, W
FUNK, W
STIEWE, J
WERNER, S
BALL, S
GABRIEL, JC
GEYER, C
HOLSCHER, A
HOFMANN, W
HOLZER, B
KHAN, S
KNOPFLE, KT
SPENGLER, J
BRITTON, DI
CHARLESWORTH, CEK
EDWARDS, KW
KAPITZA, H
KRIEGER, P
机构
[1] UNIV DORTMUND, INST PHYS, W-4600 DORTMUND, GERMANY
[2] UNIV ERLANGEN NURNBERG, INST PHYS, W-8520 ERLANGEN, GERMANY
[3] UNIV HAMBURG, INST EXPTL PHYS 2, W-2000 HAMBURG 13, GERMANY
[4] UNIV HEIDELBERG, INST HOCHENERGIEPHYS, W-6900 HEIDELBERG, GERMANY
[5] MAX PLANCK INST NUCL PHYS, W-6900 HEIDELBERG 1, GERMANY
[6] UNIV KARLSRUHE, INST EXPTL KERNPHYS, W-7500 KARLSRUHE, GERMANY
[7] EDVARD KARDELJ UNIV, INST J STEFAN, YU-61111 LJUBLJANA, SLOVENIA
[8] UNIV LUND, INST PHYS, S-22362 LUND, SWEDEN
[9] MOSCOW THEORET & EXPTL PHYS INST, MOSCOW 117259, USSR
[10] EDVARD KARDELJ UNIV, DEPT FIS, YU-61111 LJUBLJANA, SLOVENIA
[11] UNIV S CAROLINA, COLUMBIA, SC 29208 USA
关键词
D O I
10.1016/0370-2693(92)90529-D
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Using the ARGUS detector at the e+ e- storage ring DORIS II at DESY, we have observed parity violation in the decay LAMBDA(c) +/---> LAMBDA-pi +/-. We measure the coefficient of parity violation, alpha(LAMBDA-c), to be -0.96 +/- 0.42. In addition, we measure sigma-BR (LAMBDA(c)+ --> LAMBDA-pi+) and sigma-BR (LAMBDA(c)+ --> SIGMA-0-pi+) to be, respectively, (2.2 +/- 0.3 +/- 0.4) pb and (2.0 +/- 0.7 +/- 0.4) pb.
引用
收藏
页码:239 / 245
页数:7
相关论文
共 18 条
[1]   ARGUS - A UNIVERSAL DETECTOR AT DORIS-II [J].
ALBRECHT, H ;
BINDER, U ;
BOCKMANN, P ;
DREWS, G ;
GLASER, R ;
HARDER, G ;
HASEMANN, H ;
KROLZIG, A ;
MICHEL, E ;
REINSCH, W ;
SCHMIDTPARZEFALL, W ;
SCHRODER, H ;
SCHULZ, HD ;
SELONKE, F ;
STEINMANN, E ;
WURTH, R ;
DRESCHER, A ;
GRAWE, B ;
HOFMANN, W ;
KAMP, D ;
MARKEES, A ;
MATTHIESEN, U ;
SCHECK, H ;
SPAAN, B ;
SPENGLER, J ;
WEGENER, D ;
HELLER, R ;
SCHUBERT, KR ;
STIEWE, J ;
STRAHL, K ;
WALDI, R ;
WESELER, S ;
EDWARDS, KW ;
FRISKEN, WR ;
FUKUNAGA, C ;
GILKINSON, DJ ;
GINGRICH, DM ;
GODDARD, M ;
KAPITZA, H ;
KIM, PCH ;
KUTSCHKE, R ;
MACFARLANE, DB ;
MCKENNA, JA ;
MCLEAN, KW ;
NILSSON, AW ;
ORR, RS ;
PADLEY, BP ;
PATEL, PM ;
PRENTICE, JD ;
SEYWERD, HCJ .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 275 (01) :1-48
[2]   OBSERVATION OF THE CHARMED BARYON LAMBDA-C IN E+E- ANNIHILATION AT 10 GEV [J].
ALBRECHT, H ;
BOCKMANN, P ;
GLASER, R ;
HARDER, G ;
KRUGER, A ;
NIPPE, A ;
SCHAFER, M ;
SCHMIDTPARZEFALL, W ;
SCHRODER, H ;
SCHULZ, HD ;
SEFKOW, F ;
SPENGLER, J ;
WURTH, R ;
YAGIL, A ;
APPUHN, RD ;
DRESCHER, A ;
KAMP, D ;
KOLANOSKI, H ;
MATTHIESEN, U ;
SCHECK, H ;
SCHWEDA, G ;
SPAAN, B ;
WALTHER, A ;
WEGENER, D ;
EHMANN, C ;
GABRIEL, JC ;
RUF, T ;
SCHUBERT, KR ;
STIEWE, J ;
STRAHL, K ;
WALDI, R ;
WERNER, S ;
EDWARDS, KW ;
FRISKEN, WR ;
GILKINSON, DJ ;
GINGRICH, DM ;
KAPITZA, H ;
KIM, PCH ;
KUTSCHKE, R ;
MACFARLANE, DB ;
MCKENNA, JA ;
MCLEAN, KW ;
NILSSON, AW ;
ORR, RS ;
PADLEY, P ;
PARSONS, JA ;
PATEL, PM ;
PRENTICE, JD ;
SEYWERD, HCJ ;
SWAIN, JD .
PHYSICS LETTERS B, 1988, 207 (01) :109-114
[3]  
ALBRECHT H, DESY91055 PREPR
[4]   INCLUSIVE PRODUCTION OF MULTISTRANGE HYPERONS FROM 11-GEV/C K-P INTERACTIONS [J].
ASTON, D ;
CARNEGIE, RK ;
DUNWOODIE, W ;
DURKIN, S ;
ESTABROOKS, PG ;
HEMINGWAY, RJ ;
HONMA, A ;
HUTCHINSON, D ;
JOHNSON, WB ;
KUNZ, PF ;
LASINSKI, T ;
LEITH, DWGS ;
LEVINSON, L ;
MCKEE, R ;
MEADOWS, BT ;
MCPHERSON, AC ;
MEYER, WT ;
OAKHAM, GK ;
RATCLIFF, BN ;
SHAPIRO, S ;
SHIMOMURA, T ;
SUZUKI, S ;
VAVRA, J ;
WILLIAMS, S .
PHYSICAL REVIEW D, 1985, 32 (09) :2270-2287
[5]   MEASUREMENT OF THE LAMBDA-C+ DECAY-ASYMMETRY PARAMETER [J].
AVERY, P ;
BESSON, D ;
GARREN, L ;
YELTON, J ;
KINOSHITA, K ;
PIPKIN, FM ;
PROCARIO, M ;
WILSON, R ;
WOLINSKI, J ;
XIAO, D ;
ZHU, Y ;
AMMAR, R ;
BARINGER, P ;
COPPAGE, D ;
DAVIS, R ;
HAAS, P ;
KELLY, M ;
KWAK, N ;
LAM, H ;
RO, S ;
KUBOTA, Y ;
NELSON, JK ;
PERTICONE, D ;
POLING, R ;
FULTON, R ;
JENSEN, T ;
JOHNSON, DR ;
KAGAN, H ;
KASS, R ;
MORROW, F ;
WHITMORE, J ;
WILSON, P ;
BORTOLETTO, D ;
CHEN, WY ;
DOMINICK, J ;
MCILWAIN, RL ;
MILLER, DH ;
NG, CR ;
SCHAFFNER, SF ;
SHIBATA, EI ;
SHIPSEY, IPJ ;
YAO, WM ;
BATTLE, M ;
SPARKS, K ;
THORNDIKE, EH ;
WANG, CH ;
ALAM, MS ;
KIM, IJ ;
LI, WC ;
ROMERO, V .
PHYSICAL REVIEW LETTERS, 1990, 65 (23) :2842-2845
[6]  
AVERY P, 1990, CNS90922 PREPR
[7]   EXCLUSIVE NONLEPTONIC DECAYS OF D-MESONS, DS-MESONS AND B-MESONS [J].
BAUER, M ;
STECH, B ;
WIRBEL, M .
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 34 (01) :103-115
[8]   SPIN-DEPENDENT DECAYS OF THE LAMBDA-C [J].
BJORKEN, JD .
PHYSICAL REVIEW D, 1989, 40 (05) :1513-1516
[9]   PRODUCTION AND DECAY OF CASCADE HYPERONS [J].
DAUBER, PM ;
BERGE, JP ;
HUBBARD, JR ;
MERRILL, DW ;
MULLER, RA .
PHYSICAL REVIEW, 1969, 179 (05) :1262-&
[10]  
HERNANDEZ JJ, 1990, PHYS LETT B, V239, P1