Two photon physics
- 作者：Andreev ; Valery P.
- 刊名：Nuclear Physics B - Proceedings Supplements
- 出版年：2003
- 期刊代码：46_09205632
- 类别：ph
- 出版时间：April, 2003
- 卷：117
- 期：Supplement
- 页码：428-433
- 文件大小：619 K
摘要
A review of the recent experimental results on two photon physics at LEP is presented. The total cross section for γγ → hadrons is measured for two-photon centre-of-mass energies up to 160 GeV. The QCD predictions are tested with measurements of the total hadronic cross section for virtual γ*γ* collisions, with heavy flavour (cc and bb) production and inclusive particle production in collisions of quasi-real photons. Exclusive pair production of hadrons in γγ collisions is also discussed.