MEASUREMENT OF THE TOTAL HADRONIC CROSS-SECTIONS IN E+E- ANNIHILATION AND DETERMINATION OF THE STANDARD MODEL PARAMETERS

被引:10
作者
ADACHI, I
DOSER, M
ENOMOTO, R
FUJII, H
FUJII, K
FUJII, T
FUJIMOTO, J
FUJIWARA, K
FUJIWARA, N
HAYASHII, H
HIGASHI, S
HOWELL, B
IIDA, N
IMANISHI, A
IKEDA, H
ISHII, T
ITOH, R
IWASAKI, H
IWASHIRO, K
KAJIKAWA, R
KAMAE, T
KATO, S
KATO, Y
KAWABATA, S
KAYAHARA, Y
KICHIMI, H
KISHIDA, T
KOBAYASHI, M
KOLTICK, D
KUSUKI, N
LEVINE, I
MARUYAMA, A
MARUYAMA, K
MATSUSHITA, K
MIYAMOTO, A
MURAMATSU, K
NAGAI, K
NAGIRA, T
NITOH, O
NOGUCHI, S
OCHIAI, F
OKUNO, H
OKUSAWA, T
ONODERA, S
SASAYAMA, N
SHIMONAKA, A
SHIMOZAWA, K
SHIRAHASHI, A
SUGAHARA, R
SUGIYAMA, A
机构
[1] KEK NAT LAB HIGH ENERGY PHYS,NATL LAB HIGH ENERGY PHYS,IBARAKI 305,JAPAN
[2] KOBE UNIV,DEPT PHYS,KOBE 657,JAPAN
[3] NARA WOMENS UNIV,DEPT PHYS,NARA 630,JAPAN
[4] OSAKA CITY UNIV,DEPT PHYS,OSAKA 558,JAPAN
[5] PURDUE UNIV,DEPT PHYS,W LAFAYETTE,IN 47907
[6] UNIV TOKYO,INST NUCL STUDY,TOKYO 158,JAPAN
[7] TOKYO UNIV AGR & TECHNOL,DEPT APPL PHYS,KOGANEI,TOKYO 184,JAPAN
[8] UNIV TOKYO,DEPT PHYS,TOKYO 113,JAPAN
[9] TEZUKAYAMA GAKUIN UNIV,FAC LIBERAL ARTS,NARA 631,JAPAN
[10] TOKYO INST TECHNOL,DEPT PHYS,TOKYO 152,JAPAN
关键词
D O I
10.1016/0370-2693(90)92052-K
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We have measured the total e+e- hadronic annihilation cross section at the center of mass energies between 50.0 GeV and 61.4 GeV with the TOPAZ detector at TRISTAN. The full electroweak radiative corrections (up to O(α3)) were applied to the data which were analysed together with the published data from PEP and PETRA. We then determined the standard model parameters, Mz (the mass of the Z), sinw2θ (the Weinberg angle) and ΛMS (the QCD scale parameter) by comparing the experimental data with the prediction of the standard model. The best fit values are Mz = 89.2-1.8+2.1 GeV/c2, sin2θw = 0.233 -0.025+0.035 and ΛMS = 0.327-0.206+0.275 GeV. A constraint is obtained on the heavy top quark mass through the radiative corrections if we take the SLC value of Mz (91.1 GeV/c2). © 1990.
引用
收藏
页码:525 / 533
页数:9
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