Search for low-energy resonances in the electron-positron annihilation-in-flight photon spectrum

S. H. Connell; R. W. Fearick; R. F.A. Hoernlé; E. Sideras-Haddad; J. P.F. Sellschop

doi:10.1103/PhysRevLett.60.2242

Search for low-energy resonances in the electron-positron annihilation-in-flight photon spectrum

S. H. Connell, R. W. Fearick, R. F.A. Hoernlé, E. Sideras-Haddad, J. P.F. Sellschop

University of the Witwatersrand

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

We present the results of a search for resonantlike structures in the two-photon decay channel of the e+-e- system at energies corresponding to the anomalous peaks seen at Gesellschaft für Schwerionen-forschung in heavy-ion reactions. Within our sensitivity, no evidence for resonances at the 3% level was found. This enables us to exclude the existence of a Wong-Becker-type particle and to set an upper limit on the ratio e+e-0.7 at 810 keV.

Original language	English
Pages (from-to)	2242-2245
Number of pages	4
Journal	Physical Review Letters
Volume	60
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevLett.60.2242
Publication status	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy

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10.1103/PhysRevLett.60.2242

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title = "Search for low-energy resonances in the electron-positron annihilation-in-flight photon spectrum",

abstract = "We present the results of a search for resonantlike structures in the two-photon decay channel of the e+-e- system at energies corresponding to the anomalous peaks seen at Gesellschaft f{\"u}r Schwerionen-forschung in heavy-ion reactions. Within our sensitivity, no evidence for resonances at the 3% level was found. This enables us to exclude the existence of a Wong-Becker-type particle and to set an upper limit on the ratio e+e-0.7 at 810 keV.",

author = "Connell, {S. H.} and Fearick, {R. W.} and Hoernl{\'e}, {R. F.A.} and E. Sideras-Haddad and Sellschop, {J. P.F.}",

year = "1988",

doi = "10.1103/PhysRevLett.60.2242",

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AU - Connell, S. H.

AU - Fearick, R. W.

AU - Hoernlé, R. F.A.

AU - Sideras-Haddad, E.

AU - Sellschop, J. P.F.

PY - 1988

Y1 - 1988

N2 - We present the results of a search for resonantlike structures in the two-photon decay channel of the e+-e- system at energies corresponding to the anomalous peaks seen at Gesellschaft für Schwerionen-forschung in heavy-ion reactions. Within our sensitivity, no evidence for resonances at the 3% level was found. This enables us to exclude the existence of a Wong-Becker-type particle and to set an upper limit on the ratio e+e-0.7 at 810 keV.

AB - We present the results of a search for resonantlike structures in the two-photon decay channel of the e+-e- system at energies corresponding to the anomalous peaks seen at Gesellschaft für Schwerionen-forschung in heavy-ion reactions. Within our sensitivity, no evidence for resonances at the 3% level was found. This enables us to exclude the existence of a Wong-Becker-type particle and to set an upper limit on the ratio e+e-0.7 at 810 keV.

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U2 - 10.1103/PhysRevLett.60.2242

DO - 10.1103/PhysRevLett.60.2242

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JF - Physical Review Letters

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ER -

Search for low-energy resonances in the electron-positron annihilation-in-flight photon spectrum

Abstract

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