Generation of positrons via pair creation of Compton scattered gamma-rays
Oct, 1998
17 pages
Published in:
- Nucl.Instrum.Meth.A 437 (1999) 169-177
Report number:
- KEK-PREPRINT-98-177,
- TMU-HEP-EXP-98-13
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Abstract: (Elsevier)
An important role of positron (e + ) polarization in future linear colliders is discussed in terms of effective polarization, which is closely related to the clear observation of interesting reaction processes in e − e + collisions. In order to verify our proposed method, in which highly polarized e + can be generated through Compton scattering of laser light off a relativistic electron (e − ) beam, we performed an experiment to prove the principle and observed e + productions for the first time. It was found that the production rates of e + are not only consistent with those of e − and γ-ray but also in good agreement with numerical estimations.- positron: particle source
- particle source: polarized beam
- radiation: laser
- photon electron: Compton scattering
- photon nucleus: interaction
- tungsten
- electron: pair production
- electron positron: linear collider
- linear collider: proposed
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