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APS » Journals » Phys. Rev. Lett. » Volume 36 » Issue 21
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Phys. Rev. Lett. 36, 1236–1239 (1976)

Observation of High-Mass Dilepton Pairs in Hadron Collisions at 400 GeV

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D. C. Hom, L. M. Lederman, H. P. Paar, H. D. Snyder, J. M. Weiss, and J. K. Yoh*
Columbia University, New York, New York 10027

J. A. Appel, B. C. Brown, C. N. Brown, W. R. Innes, and T. Yamanouchi†
Fermi National Accelerator Laboratory, Batavia, Illinois 60510

D. M. Kaplan*
State University of New York at Stony Brook, Stony Brook, New York 11794

Received 28 January 1976; published in the issue dated 24 May 1976

We report preliminary results on the production of electron-positron pairs in the mass range 2.5 to 20 GeV in 400-GeV p-Be interactions. 27 high-mass events are observed in the mass range 5.5-10.0 GeV corresponding to σ=(1.2±0.5)×10-35 cm2 per nucleon. Clustering of 12 of these events between 5.8 and 6.2 GeV suggests that the data contain a new resonance at 6 GeV.

© 1976 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.36.1236
DOI:
10.1103/PhysRevLett.36.1236
PACS:

*Work supported by the National Science Foundation.

†Work supported by the U. S. Energy Research and Development Administration.

 
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