Measurement of the transverse spin correlation in Z --> tau+ tau- decays - INSPIRE

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Measurement of the transverse spin correlation in Z --> tau+ tau- decays

DELPHI

Collaboration

Mar, 1997

19 pages

Published in:

Phys.Lett.B 404 (1997) 194-206

DOI:

10.1016/S0370-2693(97)00586-8

PDG:

\mathit C_{\mathit TT}

Report number:

CERN-PPE-97-034,
CERN-PPE-97-34

Experiments:

CERN-LEP-DELPHI

View in:

CERN Document Server

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Abstract: (Elsevier)

The measurement of the correlation between the transverse spin components of τ + τ − pairs collected during 1992 to 1994 with the DELPHI detector at LEPI is presented. A value C π = 0.87 ± 0.20 (stat.) −0.12 +0.10 (syst.) was obtained for the correlation parameter, in agreement with the Standard Model expectation.

electron positron: colliding beams
electron positron: annihilation
Z0: electroproduction
Z0: leptonic decay
tau: pair production
tau: semileptonic decay
tau: leptonic decay
spin: correlation
spin: transverse
event shape analysis: planarity

References(21)

Figures(0)

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