Recent two-photon physics results from ARGUS
Journal Article
·
· AIP Conference Proceedings
OSTI ID:165536
Two photon production of {pi}{sup +}{pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}{pi}{sup {minus}}, {ital K}{sup +}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup {minus}}, {ital K}{sup +}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}, {pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}, and {pi}{sup +}{pi}{sup {minus}} has been studied using the ARGUS detector at the {ital e}{sup +}{ital e}{sup {minus}} storage ring DORIS II at DESY. A partial wave analysis was performed on the five-pion and three-pion final states. In the reaction {gamma}{gamma}{r_arrow}{omega}{rho}{sup 0} is showed that the partial-wave with spin and parity ({ital J}{sup {ital P}},{ital J}{sub {ital z}})=(2{sup +},{plus_minus}2) dominates. The cross section and angular distributions of the reaction {gamma}{gamma}{r_arrow}{phi}{rho}{sup 0}{r_arrow}{ital K}{sup +}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup {minus}} were measured for the first time. The production of the vector-meson pair {phi}{omega} is observed in the two-photon reaction {gamma}{gamma}{r_arrow}{ital K}{sup +}{ital K}{sup {minus}}{pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}. The two-photon width of the tensor meson {ital a}{sub 2}(1320) was measured in the decay channel {pi}{sup +}{pi}{sup 0}{pi}{sup {minus}}. An upper limit, significantly lower than indicated by previous experiments was set on the radiative width of the {pi}{sub 2}(1670) meson. An upper limit was set on the radiative width of the {ital f}{sub 0}(975)in the decay channel {pi}{sup +}{pi}{sup {minus}}. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.
- OSTI ID:
- 165536
- Report Number(s):
- CONF-940514--
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 338; ISSN 0094-243X; ISSN APCPCS
- Country of Publication:
- United States
- Language:
- English
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