Published 1989 | Version v1
Miscellaneous Metadata-only

Two-photon production of pion pairs in e+e- collisions at 29 GeV

Creators

Description

The author presents a new measurement of the cross section for the process e+e- → e+e-π+π- at center-of-mass energy 29 GeV for invariant pion pair masses Mππ between 350 MeV/c2 and 3.5 GeV/c2. For Mππ above 2.1 GeV/c 2, he finds approximate agreement with the hard-scattering prediction of Brodsky and Lepage. In the low mass region, he observes the f2 (1270), and measure its radiative width to be 3.15 ± .04 ± .39 keV. He also observe an enhancement in the π+π- spectrum near 1 GeV. We hypothesize that it is the f0(975) and determine its radiative width to be 0.29 ± .07 ± .12 keV

Availability note (English)

University Microfilms, PO Box 1764, Ann Arbor, MI 48106, Order No.90-06,258.

Additional details

Publishing Information

Publisher
Univ. of California.
Imprint Place
Berkeley, CA (USA)
Imprint Pagination
113 p.

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
22049416
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data, Thesis, Non-conventional Literature
Descriptors DEI
CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; EXPERIMENTAL DATA; GEV RANGE; MASS; PAIR PRODUCTION; PARTICLE WIDTHS; PHOTOPRODUCTION; PIONS
Descriptors DEC
BASIC INTERACTIONS; BOSONS; DATA; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; HADRONS; INFORMATION; INTERACTIONS; LEPTON-LEPTON INTERACTIONS; MESONS; NUMERICAL DATA; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS