Contribution of {pi}{sup 0} and {eta} Dalitz decays to the dilepton invariant-mass spectrum in 1A GeV heavy-ion collisions
Journal Article
·
· Physical Review, C
OSTI ID:550634
The Dalitz-decay contributions of {pi}{sup 0} and {eta} mesons to the di-electron invariant-mass spectrum at 1 A GeV have been obtained from a systematics of inclusive meson production cross sections measured for the collision systems {sup 12}C+{sup nat}C and {sup 40}Ar,{sup 40}Ca+{sup nat}Ca in the bombarding-energy range of 0.8{endash}2.0 A GeV. These results are compared with the recently published di-electron mass spectra of the DLS collaboration. Systematic errors and angular-distribution effects are discussed. We conclude that the low-mass part of the DLS data cannot be explained by the Dalitz decays of light neutral mesons only. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 550634
- Journal Information:
- Physical Review, C, Vol. 56, Issue 6; Other Information: PBD: Dec 1997
- Country of Publication:
- United States
- Language:
- English
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