RADIATIVE PROTONIUM ANNIHILATION INTO GAMMA-GAMMA, GAMMA-PI-0, GAMMA-ETA, GAMMA-OMEGA AND GAMMA-ETA'

被引：23

作者：

AMSLER, C

ARMSTRONG, DS

AUGUSTIN, I

BAKER, CA

BARNETT, BM

BATTY, CJ

BEUCHERT, K

BIRIEN, P

BISTIRLICH, J

BLUM, P

BOSSINGHAM, R

BOSSY, H

BRAUNE, K

BROSE, J

BUGG, DV

BURCHELL, M

CASE, T

CHUNG, SU

COOPER, A

CROWE, KM

DIETZ, HP

VONDOMBROWSKI, S

DOSER, M

DUNNWEBER, W

ENGELHARDT, D

ENGLERT, M

FAESSLER, MA

FELIX, C

FOLGER, G

HACKMANN, R

HADDOCK, RP

HEINSIUS, FH

HESSEY, NP

HIDAS, P

ILLINGER, P

JAMNIK, D

JAVORFI, Z

KALINOWSKY, H

KAMMLE, B

KIEL, T

KISIEL, J

KLEMPT, E

KOBEL, M

KOCH, H

KOLO, C

KONIGSMANN, K

KUNZE, M

LANDUA, R

LUDEMANN, J

MATTHAEY, H

机构：

[1] ACAD SCI BUDAPEST,H-1525 BUDAPEST,HUNGARY

[2] QUEEN MARY & WESTFIELD COLL,LONDON E1 4NS,ENGLAND

[3] UNIV ZURICH,CH-8006 ZURICH,SWITZERLAND

[4] UNIV MUNICH,W-8000 MUNICH 2,GERMANY

[5] CTR RECH NUCL,F-67037 STRASBOURG,FRANCE

[6] RUHR UNIV BOCHUM,W-4630 BOCHUM,GERMANY

[7] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND

[8] CERN,CH-1211 GENEVA 23,SWITZERLAND

[9] UNIV HAMBURG,W-2000 HAMBURG 13,GERMANY

[10] UNIV KARLSRUHE,W-7500 KARLSRUHE,GERMANY

[11] UNIV CALIF LOS ANGELES,LOS ANGELES,CA 90024

[12] UNIV MAINZ,W-6500 MAINZ,GERMANY

来源：

PHYSICS LETTERS B | 1993年 / 311卷 / 1-4期

关键词：

D O I：

10.1016/0370-2693(93)90584-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Radiative ppBAR annihilation at rest into gammagamma, gammapi0, gammaeta, gammaomega and gammaeta' has been measured with the Crystal Barrel detector at LEAR for antiprotons stopped in liquid hydrogen. The branching ratios are B(gammapi0) = (44 +/- 4) x 10(-6), B(gammaeta) = (9.3 +/- 1.4) x 10(-6) and B(gammaomega) = (68 +/- 18) x 10(-6), respectively. For B(gammagamma) and B(gammaeta') we find new upper limits of 0.63 x 10(-6) and 12 x 10(-6) (95% CL), respectively.

引用

页码：371 / 378

页数：8

共 13 条

[1] EXPERIMENTAL-DETERMINATION OF THE BRANCHING RATIOS PP-BAR-] 2-PI-0, PI-0-GAMMA, AND 2-GAMMA AT REST [J].

ADIELS, L ;

BACKENSTOSS, G ;

BERGSTROM, I ;

CARIUS, S ;

CHARALAMBOUS, S ;

COOPER, MD ;

FINDEISEN, C ;

HATZIFOTIADOU, D ;

HUGI, M ;

KEREK, A ;

MEYER, HO ;

PAVLOPOULOS, P ;

REPOND, J ;

TAUSCHER, L ;

TROSTER, D ;

WILLIAMS, MCS ;

ZIOUTAS, K .

ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1987, 35 (01) :15-19

[2] THE CRYSTAL BARREL SPECTROMETER AT LEAR [J].

AKER, E ;

AMSLER, C ;

AUGUSTIN, I ;

BAKER, CA ;

BARNETT, BM ;

BATTY, CJ ;

BECKMANN, R ;

BIRIEN, P ;

BISTIRLICH, J ;

BLUM, P ;

BOSSINGHAM, R ;

BOSSY, H ;

BRAUNE, K ;

BUGG, DV ;

BURCHELL, M ;

CASE, T ;

CIERJACKS, S ;

CROWE, KM ;

DEDERICHS, K ;

DOSER, M ;

DUNNWEBER, W ;

EMERICH, H ;

ENGELHARDT, D ;

FAESSLER, MA ;

FELIX, C ;

FOLGER, G ;

FRIEDRICH, J ;

HACKMANN, R ;

HADDOCK, R ;

HAMMER, H ;

HEINSIUS, F ;

HESSEY, NP ;

ILLINGER, P ;

JAMNIK, D ;

KALINOWSKY, H ;

KAMMLE, B ;

KIEL, T ;

KLEMPT, E ;

KOCH, H ;

KOLO, C ;

KONIGSMANN, K ;

KRENNRICH, F ;

KUNZE, M ;

LANDUA, R ;

LUDEMANN, J ;

MATTHAEY, H ;

MERKEL, M ;

MERLO, JP ;

MEYER, CA ;

MEYERBERKHOUT, U .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1992, 321 (1-2) :69-108

[3] P-WAVE VERSUS S-WAVE (P)OVER-BAR-P-ANNIHILATION AT REST IN LH2 [J].

AMSLER, C ;

AUGUSTIN, I ;

BAKER, CA ;

BARNETT, BM ;

BATTY, CJ ;

BEUCHERT, K ;

BIRIEN, P ;

BISTIRLICH, J ;

BLUM, P ;

BOSSINGHAM, R ;

BOSSY, H ;

BRAUNE, K ;

BROSE, J ;

BUGG, DV ;

BURCHELL, M ;

CASE, T ;

COOPER, A ;

CROWE, KM ;

DIETZ, HP ;

VONDOMBROWSKI, S ;

DOSER, M ;

DUNNWEBER, W ;

ENGELHARDT, D ;

ENGLERT, M ;

FAESSLER, MA ;

FELIX, C ;

FOLGER, G ;

HACKMANN, R ;

HADDOCK, RP ;

HEINSIUS, FH ;

HESSEY, NP ;

HIDAS, P ;

ILLINGER, P ;

JAMNIK, D ;

KALINOWSKY, H ;

KAMMLE, B ;

KIEL, T ;

KISIEL, J ;

KLEMPT, E ;

KOBEL, M ;

KOCH, H ;

KOLO, C ;

KONIGSMANN, K ;

KUNZE, M ;

LANDUA, R ;

LUDEMANN, J ;

MATTHAEY, H ;

MERKEL, M ;

MERLO, JP ;

MEYER, CA .

PHYSICS LETTERS B, 1992, 297 (1-2) :214-218

[4]

AMSLER C, UNPUB Z PHYS C

[5] PROTON ANTI-PROTON ANNIHILATIONS AT REST INTO PI-0-OMEGA,PI-0-ETA,PI-0-GAMMA,PI-0-PI-0, AND PI-0-ETA' [J].

BACKENSTOSS, G ;

HASINOFF, M ;

PAVLOPOULOS, P ;

REPOND, J ;

TAUSCHER, L ;

TROSTER, D ;

BLUM, P ;

GUIGAS, R ;

KOCH, H ;

MEYER, M ;

POTH, H ;

RAICH, U ;

RICHTER, B ;

ADIELS, L ;

BERGSTROM, I ;

FRANSSON, K ;

KEREK, A ;

SUFFERT, M ;

ZIOUTAS, K .

NUCLEAR PHYSICS B, 1983, 228 (03) :424-438

[6] EXPERIMENTAL RESULTS ON OMEGAPI AND PIPI SYSTEMS AS OBSERVED IN PBARP ANNIHILATIONS AT REST - PBARP-]OMEGAOPI+OI- [J].

BIZZARRI, R ;

FOSTER, M ;

GAVILLET, P ;

LABROSSE, G ;

MONTANET, L ;

SALMERON, R ;

VILLEMOES, P ;

GHESQUIERE, C ;

LILLESTOL, E .

NUCLEAR PHYSICS B, 1969, B 14 (01) :169-+

[7]

BRUN R, 1987, CERN DDEE841 INT REP

[8] ANTIPROTON-PROTON ANNIHILATION AT REST INTO PI-0M AND GAMMA-M WITH M = PHI, ETA-', OMEGA, RHO-0, ETA, AND PI-0 [J].

CHIBA, M ;

FUJITANI, T ;

IWAHORI, J ;

KAWAGUTI, M ;

KOBAYASHI, M ;

KUROKAWA, S ;

NAGASHIMA, Y ;

OMORI, T ;

SUGIMOTO, S ;

TAKASAKI, M ;

TAKEUTCHI, F ;

YAMAGUCHI, Y ;

YOSHIDA, H .

PHYSICAL REVIEW D, 1988, 38 (07) :2021-2031

[9] SEARCH FOR NARROW PEAKS IN INCLUSIVE PI-0 SPECTRA FROM PBAR-P ANNIHILATION AT REST [J].

CHIBA, M ;

DOI, K ;

FUJITANI, T ;

IWAHORI, J ;

KAWAGUTI, M ;

KOBAYASHI, M ;

KOIKE, M ;

KOZUKI, T ;

KUROKAWA, S ;

KUSUMOTO, H ;

NAGANO, H ;

NAGASHIMA, Y ;

OMORI, T ;

SUGIMOTO, S ;

TAKASAKI, M ;

TAKEUTCHI, F ;

TSUCHIYA, M ;

UEDA, M ;

YAMAGUCHI, Y ;

YOSHIDA, H .

PHYSICS LETTERS B, 1988, 202 (03) :447-452

[10]

DELCOURT B, 1984, 1982 P WORKSH PHYS L

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