Complete initial state QED corrections to off-shell gauge boson pair production in e+ e- annihilation - INSPIRE

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Complete initial state QED corrections to off-shell gauge boson pair production in e+ e- annihilation

Feb, 1996

65 pages

Published in:

Nucl.Phys.B 477 (1996) 27-58

e-Print:

hep-ph/9602409 [hep-ph]

DOI:

10.1016/0550-3213(96)00354-9

Report number:

DESY-96-028

View in:

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Abstract:

We study Standard Model four-fermion production in e+ e- annihilation at LEP2 energies and above using a semi-analytical approach. We derive the complete QED initial state corrections (ISR) to the reactions e+e- -> ZZ ->

f_1\bar{f_1}f_2\bar{f_2}

and e+e- -> W+W- ->

{\bar f}_1~u f_1~d f_2~u {\bar f}_2~d

with

f_1\neq f_2

and

f_i \neq e~\pm, \nu_e

. As compared to the well-known universal s-channel ISR, additional complexity arises due to non-universal, process-dependent ISR contributions from t- and u-channel fermion exchanges. The full set of formulae needed to perform numerical calculations is given together with samples of numerical results.

Note:

65 pages, 4 postscript figures, uses elsart.sty, amsfonts.sty, and epsfig.sty, full postscript available from http://www.ifh.de/lehner/desy96-028.ps.gz Report-no: DESY 96-028

12.15.Lk
13.40.Ks
14.70.-3
Heavy gauge-boson production
Electromagnetic corrections
e + e − annihilation
Four-fermion production
e+e− annihilation
electron positron: annihilation
annihilation: electron positron

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