Dimuon production in 15.5-GeV/c p interactions and the observation of a low-mass continuum

B. Haber; E. Kogan; K. Bunnell; M. Duong-Van; R. Mozley; A. Odian; F. Villa; L. Wang; R. Cassell; R. Panvini; S. Poucher; S. Stone; T. Schalk; W. C. Barber

doi:10.1103/PhysRevD.22.2107

Dimuon production in 15.5-GeV/c p interactions and the observation of a low-mass continuum

B. Haber, E. Kogan, K. Bunnell, M. Duong-Van, R. Mozley, A. Odian, F. Villa, L. Wang, R. Cassell, R. Panvini, S. Poucher, S. Stone, T. Schalk, W. C. Barber

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18 Scopus citations

Abstract

We report the results of an experiment which examines the entire final state of events in which muon pairs were produced in 15.5-GeV/c +p interactions. A portion of this data was presented earlier. Here we report on the final data sample of 890 events obtained from a total of 2.5×108 interactions [a sensitivity of (8.65 events/nb)×trigger efficiency]. The experiment was sensitive primarily to the low-mass region and the good mass resolution made it possible to identify the contributions from the and decays and the and Dalitz decays. An excess of events is observed in the dimuon mass region 400 - 600 MeV which is not accounted for by the above-mentioned decays. The final states were examined to search for characteristic differences from those in events without dimuons.

Original language	English (US)
Pages (from-to)	2107-2121
Number of pages	15
Journal	Physical Review D
Volume	22
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevD.22.2107
State	Published - 1980
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Dimuon production in 15.5-GeV/c p interactions and the observation of a low-mass continuum",

abstract = "We report the results of an experiment which examines the entire final state of events in which muon pairs were produced in 15.5-GeV/c +p interactions. A portion of this data was presented earlier. Here we report on the final data sample of 890 events obtained from a total of 2.5×108 interactions [a sensitivity of (8.65 events/nb)×trigger efficiency]. The experiment was sensitive primarily to the low-mass region and the good mass resolution made it possible to identify the contributions from the and decays and the and Dalitz decays. An excess of events is observed in the dimuon mass region 400 - 600 MeV which is not accounted for by the above-mentioned decays. The final states were examined to search for characteristic differences from those in events without dimuons.",

author = "B. Haber and E. Kogan and K. Bunnell and M. Duong-Van and R. Mozley and A. Odian and F. Villa and L. Wang and R. Cassell and R. Panvini and S. Poucher and S. Stone and T. Schalk and Barber, {W. C.}",

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doi = "10.1103/PhysRevD.22.2107",

language = "English (US)",

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T1 - Dimuon production in 15.5-GeV/c p interactions and the observation of a low-mass continuum

AU - Haber, B.

AU - Kogan, E.

AU - Bunnell, K.

AU - Duong-Van, M.

AU - Mozley, R.

AU - Odian, A.

AU - Villa, F.

AU - Wang, L.

AU - Cassell, R.

AU - Panvini, R.

AU - Poucher, S.

AU - Stone, S.

AU - Schalk, T.

AU - Barber, W. C.

PY - 1980

Y1 - 1980

N2 - We report the results of an experiment which examines the entire final state of events in which muon pairs were produced in 15.5-GeV/c +p interactions. A portion of this data was presented earlier. Here we report on the final data sample of 890 events obtained from a total of 2.5×108 interactions [a sensitivity of (8.65 events/nb)×trigger efficiency]. The experiment was sensitive primarily to the low-mass region and the good mass resolution made it possible to identify the contributions from the and decays and the and Dalitz decays. An excess of events is observed in the dimuon mass region 400 - 600 MeV which is not accounted for by the above-mentioned decays. The final states were examined to search for characteristic differences from those in events without dimuons.

AB - We report the results of an experiment which examines the entire final state of events in which muon pairs were produced in 15.5-GeV/c +p interactions. A portion of this data was presented earlier. Here we report on the final data sample of 890 events obtained from a total of 2.5×108 interactions [a sensitivity of (8.65 events/nb)×trigger efficiency]. The experiment was sensitive primarily to the low-mass region and the good mass resolution made it possible to identify the contributions from the and decays and the and Dalitz decays. An excess of events is observed in the dimuon mass region 400 - 600 MeV which is not accounted for by the above-mentioned decays. The final states were examined to search for characteristic differences from those in events without dimuons.

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DO - 10.1103/PhysRevD.22.2107

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IS - 9

ER -

Dimuon production in 15.5-GeV/c p interactions and the observation of a low-mass continuum

Abstract

ASJC Scopus subject areas

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