Helicity Amplitudes for Heavy Lepton Production in e+ e- Annihilation

Hagiwara, Kaoru; Zeppenfeld, D.

doi:10.1016/0550-3213(86)90615-2

Helicity Amplitudes for Heavy Lepton Production in e+ e- Annihilation

Kaoru Hagiwara
(
- DESY and
- Durham U.
)
,
D. Zeppenfeld
(
- DESY
)

Dec, 1985

32 pages

Published in:

Nucl.Phys.B 274 (1986) 1-32

Published: 1986

DOI:

10.1016/0550-3213(86)90615-2

Report number:

DESY-85-133,
DTP/85/24

reference search343 citations

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Abstract: (Elsevier)

Signatures of new heavy lepton pair production in e + e − annihilation at TRISTAN/SLC/LEP energies are studied in detail. Complete helicity amplitudes for 2 → 6 process e + e − → L L → (ν L f 1 f 2 )( ν L f 3 f 4 ) are given for arbitrary masses of final fermions and for arbitrary vector and axial vector couplings. Methods to measure that L and ν L masses, and the neutral- and charged-current couplings of L in terms of four-jet and one-lepton-dijet final state distributions are exemplified. Signatures of heavy neutrino-pair production are discussed briefly. A straightforward method for calculating arbitrary tree amplitudes with external fermions and vector bosons of arbitrary masses is presented for completeness.

ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
HEAVY LEPTON: PAIR PRODUCTION
PAIR PRODUCTION: HEAVY LEPTON
HEAVY LEPTON: ELECTROPRODUCTION
ELECTROPRODUCTION: HEAVY LEPTON
HEAVY LEPTON: DECAY
DECAY: HEAVY LEPTON
HELICITY: AMPLITUDE ANALYSIS
HEAVY LEPTON: MASS

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