MEASUREMENT OF THE RATIO OF NEUTRAL TO CHARGED CURRENT CROSS-SECTIONS OF NEUTRINO INTERACTIONS IN HYDROGEN

被引：28

作者：

BLIETSCHAU, J

GRASSLER, H

KRENZ, W

LANSKE, D

SCHULTE, R

SEYFERT, HH

BOCKMANN, K

CHECCHIA, P

GEICHGIMBEL, C

HEILMANN, HG

KOKOTT, T

NELLEN, B

PECH, R

BOSETTI, P

CUNDY, DC

GRANT, A

HAIDT, D

HULTH, PO

KELLNER, G

KLEIN, H

MORRISON, DRO

PAPE, L

PEYROU, C

SCHMID, P

SCOTT, WG

WACHSMUTH, H

DEWOLF, E

ADERHOLZ, M

SCHMITZ, N

SETTLES, R

WERNHARD, KL

WITTEK, W

CARTWRIGHT, P

GILES, R

GROSSMANN, P

MCGOW, R

MYATT, G

RADOJICIC, D

RENTON, P

SAITTA, B

机构：

[1] UNIV BONN,INST PHYS,D-5300 BONN 1,FED REP GER

[2] CERN,EUROPEAN ORG NUCL RES,CH-1211 GENEVA 23,SWITZERLAND

[3] MAX PLANCK INST PHYS & ASTROPHYS,D-8000 MUNICH 40,FED REP GER

[4] UNIV OXFORD,DEPT NUCL PHYS,OXFORD,ENGLAND

来源：

PHYSICS LETTERS B | 1979年 / 88卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(79)90491-X

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The ratio Rp of the neutral current to charged current cross sections has been measured in the BEBC bubble chamber filled with hydrogen and exposed to the CERN SPS wideband neutrino beam. It is found that an event selection in terms of the transverse momentum of the hadronic system is very effective in reducing backgrounds and enables Rp to be determined with an error of less than 10%. Combining the results from hydrrogen and isoscalar targets, the individual values of the coupling constants uL2 and dL2 are determined separately to be uL2 = 0.15 ± 0.06 and dL2 = 0.17 ± 0.08. The results are compatible with the standard SU (2) × U(1) model. The value of sin2θW determined from this experiment is 0.19 ± 0.04. © 1979.

引用

页码：381 / 386

页数：6

共 18 条

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