PROPERTIES OF HADRON FINAL-STATES IN E+E- ANNIHILATION AT 13 GEV AND 17 GEV CENTER OF MASS ENERGIES

被引：135
作者：
BRANDELIK, R
BRAUNSCHWEIG, W
GATHER, K
JAAX, B
KADANSKY, V
LUBELSMEYER, K
MARTYN, HU
PEISE, G
RIMKUS, J
SANDER, HG
SCHMITZ, D
SCHULTZVONDRATZIG, A
TRINES, D
WALLRAFF, W
BOERNER, H
FISCHER, HM
HARTMANN, H
HILGER, E
HILLEN, W
KNOP, G
KORBACH, W
LOHR, B
ROTH, F
RUHMER, W
WEDEMEYER, R
WERMES, N
WOLLSTADT, M
BUHRING, R
HEYLAND, D
HULTSCHIG, H
JOOS, P
KOCH, W
KOTZ, U
KOWALSKI, H
LADAGE, A
LUKE, D
LYNCH, HL
MIKENBERG, G
NOTZ, D
PYRLIK, J
RIETHMULLER, R
SCHLIWA, M
SODING, P
WIIK, BH
WOLF, G
FOHRMANN, R
POELZ, G
RINGEL, J
ROMER, O
RUSCH, R
机构：
[1] UNIV BONN,INST PHYS,D-5300 BONN 1,FED REP GER
[2] DESY,D-2000 HAMBURG 52,FED REP GER
[3] UNIV HAMBURG,INST EXPTL PHYS 2,D-2000 HAMBURG 13,FED REP GER
[4] UNIV OXFORD,DEPT NUCL PHYS,OXFORD,ENGLAND
[5] UNIV LONDON IMPERIAL COLL SCI & TECHNOL,DEPT PHYS,LONDON SW7 2AZ,ENGLAND
[6] WEIZMANN INST SCI,REHOVOT 76100,ISRAEL
[7] RUTHERFORD HIGH ENERGY LAB,CHILTON OX11 0QX,OXFORDSHIRE,ENGLAND
[8] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706
来源：
PHYSICS LETTERS B | 1979年 / 83卷 / 02期
关键词：
D O I：
10.1016/0370-2693(79)90699-3
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have observed e+e- hadrons at C.M. energies of 13 GeV and 17 GeV at PETRA using the TASSO detector. We find R(13 GeV) = 5.6 ± 0.7 and R(17 GeV) = 4.0 ± 0.7. The additional systematic uncertainty is 20%. Comparing inclusive charged hadron spectra we observe scaling between 5 GeV and 17 GeV for x = p/pbeam > 0.2; however the 13 GeV cross section is above the 17 GeV cross section for smaller x. This may be due to copious bb̄ production. The events become increasingly jet like at high energies as evidenced by a shrinking sphericity distribution with increasing energy. © 1979.
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收藏
页码：261 / 266
页数：6
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