PHOTOPRODUCTION AND HADRO-PRODUCTION OF PHI(1020), K-ASTERISK(892)(0) AND (K-ASTERISK)OVER-BAR(892)(0) MESONS IN THE ENERGY-RANGE 65 TO 175 GEV

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作者
APSIMON, RJ
ATKINSON, M
BAAKE, M
BAGDASARIAN, LS
BARBERIS, D
BRODBECK, TJ
BROOK, N
CHARITY, T
CLEGG, AB
COYLE, P
DANAHER, S
DANAGULIAN, S
DAVENPORT, M
DICKINSON, B
DIEKMANN, B
DONNACHIE, A
DOYLE, AT
EADES, J
ELLISON, RJ
FIEDLER, F
FLOWER, PS
FOSTER, JM
GALBRAITH, W
GALUMIAN, PI
GAPP, C
GEBERT, F
HALLEWELL, G
HEINLOTH, K
HENDERSON, RCW
HICKMAN, MT
HOEGER, KC
HOFMANN, RP
HOLZKAMP, A
HOLZKAMP, S
HUGHESJONES, RE
IBBOTSON, M
JAKOB, HP
JOSEPH, D
KEEMER, NR
KINGLER, J
KORSGEN, G
KOLYA, SD
LAFFERTY, GD
MCCANN, H
MCCLATCHEY, R
MCMANUS, C
MERCER, D
MORRIS, JAG
MORRIS, JV
NEWTON, D
机构
[1] CERN,CH-1211 GENEVA 23,SWITZERLAND
[2] UNIV MANCHESTER,DEPT PHYS & ASTRON,MANCHESTER M13 9PL,LANCS,ENGLAND
[3] UNIV LANCASTER,SCH PHYS & MAT,LANCASTER LA1 4YB,ENGLAND
[4] RUTHERFORD APPLETON LAB,DIDCOT OX11 0QX,OXON,ENGLAND
[5] YEREVAN PHYS INST,YEREVAN 375036,ARMENIA
[6] UNIV SHEFFIELD,DEPT PHYS,SHEFFIELD S3 7RH,S YORKSHIRE,ENGLAND
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中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
摘要
Inclusive production of phi, K*0, and K*0BAR mesons has been measured in gammap, pi+/-p and K+/-p collisions at beam energies of 65 GeV < E(gamma) < 175 GeV and E(pi/K) = 80 and 140 GeV. Cross sections have been determined over the range 0 < x(F) < 1.0 and 0 < p(t) < 1.8 GeV/c. Emphasis is put on the comparison of cross sections for different projectiles as a function of x(F) so as to study the effects of common quarks between the beam particle and the detected phi, K*0 or K*0BAR. The data are compared with a parton fusion model. Many features of the data are well explained. In detail the strange quark appears to carry a large fraction of the kaon momentum and the contribution of the valence quarks from the proton is small.
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页码:383 / 397
页数:15
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