The W and Z bosons masses, m(W) and m(Z), are measured using samples of W --> ev and Z --> e+e- decays observed in ppBAR collisions at square-root s = 630 GeV. The ratio is found to be m(W)/m(Z) = 0.8813 +/- 0.0036 +/- 0.0019. This gives a value sin2 theta(w) = 0.2234 +/- 0.0064 +/- 0.0033, and in combination with precise m(Z) measurements from LEP yields m(W) = 80.35 +/- 0.33 +/- 0.17 GeV. This result is in good agreement with other experiments, and with the standard model for a top quark mass lighter than 250 GeV.

An Improved Determination of the Ratio of W and Z Masses At the Cern Pbarp Collider / J., A., G., A., R., A., D., A., P., B., I. A., B., G., B., P., B., K., B., M., B., D., B., G., C., D., C., V., C., P., C., J. C., C., C., C., G., C., F., C., L., C., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 276:(1992), pp. 354-364. [10.1016/0370-2693(92)90332-X]

An Improved Determination of the Ratio of W and Z Masses At the Cern Pbarp Collider

SCAMPOLI, PAOLA;
1992

Abstract

The W and Z bosons masses, m(W) and m(Z), are measured using samples of W --> ev and Z --> e+e- decays observed in ppBAR collisions at square-root s = 630 GeV. The ratio is found to be m(W)/m(Z) = 0.8813 +/- 0.0036 +/- 0.0019. This gives a value sin2 theta(w) = 0.2234 +/- 0.0064 +/- 0.0033, and in combination with precise m(Z) measurements from LEP yields m(W) = 80.35 +/- 0.33 +/- 0.17 GeV. This result is in good agreement with other experiments, and with the standard model for a top quark mass lighter than 250 GeV.
1992
An Improved Determination of the Ratio of W and Z Masses At the Cern Pbarp Collider / J., A., G., A., R., A., D., A., P., B., I. A., B., G., B., P., B., K., B., M., B., D., B., G., C., D., C., V., C., P., C., J. C., C., C., C., G., C., F., C., L., C., et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 276:(1992), pp. 354-364. [10.1016/0370-2693(92)90332-X]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/472726
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