LEPTON PAIR PRODUCTIONS WITH DOUBLE HARD PHOTON-EMISSION

Authors
FUJIMOTO J KANEKO T KURIHARA Y PERRETGALLIX D SHIMIZU Y
Citation
J. Fujimoto et al., LEPTON PAIR PRODUCTIONS WITH DOUBLE HARD PHOTON-EMISSION, Physics letters. Section B, 304(1-2), 1993, pp. 189-192
Citations number
11
Journal title
Physics letters. Section B → ACNP
ISSN journal
03702693
Volume
304
Issue
1-2
Year of publication
1993
Pages
189 - 192
Database
ISI
SICI code
0370-2693(1993)304:1-2<189:LPPWDH>2.0.ZU;2-B
Abstract
Cross sections for lepton pair productions with double hard photon emi ssion, e+e- --> l+l-gammagamma, have been calculated based on the exac t matrix element produced by the automatic amplitude generator GRACE. Differential cross sections versus the invariant mass of double photon s are given under the set of generator-level cuts applied by the L3 ex periment. Our results are also compared with those obtained by two Mon te Carlo generators YFS3 and QEDPS which include multi-photon emission .