A study of particle spectra and mass distributions in the reaction π+ + p → n (forward) + (2π, 4π, 6π) at 8.4 GeV/c

M. S. Alam, B. B. Brabson, K. Galloway, R. Mercer, N. V. Baggett, E. C. Fowler, M. L. Huebschman, A. E. Kreymer, A. H. Rogers, C. Baglin, J. Hanlon, R. Kamat, R. Panvini, E. Petraske, Sheldon Stone, J. Waters, M. Webster

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Abstract

Results are reported on particle spectra and invariant mass distributions from the reaction π+ + p → n (forward) + (2π, 4π,6π) at 8.4 GeV/c. The data were obtained with the SLAC 15-inch Rapid Cycling Bubble Chamber which was triggered by detecting fast forward neutrons interacting in downstream optical spark chambers. The main features of the data can be simulated with a Monte-Carlo program which incorporates Lorentz-invariant phase space modified by exponential transverse momentum damping on each final state particle and, in addition, takes into account the geometrical constraints and triggering requirements of the system. Resonance production in some channels is seen to deviate from background distributions.

Original languageEnglish (US)
Pages (from-to)384-396
Number of pages13
JournalNuclear Physics B
Volume90
Issue numberC
DOIs
StatePublished - 1975
Externally publishedYes

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mass distribution
spark chambers
bubble chambers
transverse momentum
damping
neutrons
requirements
cycles

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Alam, M. S., Brabson, B. B., Galloway, K., Mercer, R., Baggett, N. V., Fowler, E. C., ... Webster, M. (1975). A study of particle spectra and mass distributions in the reaction π+ + p → n (forward) + (2π, 4π, 6π) at 8.4 GeV/c. Nuclear Physics B, 90(C), 384-396. https://doi.org/10.1016/0550-3213(75)90653-7

A study of particle spectra and mass distributions in the reaction π+ + p → n (forward) + (2π, 4π, 6π) at 8.4 GeV/c. / Alam, M. S.; Brabson, B. B.; Galloway, K.; Mercer, R.; Baggett, N. V.; Fowler, E. C.; Huebschman, M. L.; Kreymer, A. E.; Rogers, A. H.; Baglin, C.; Hanlon, J.; Kamat, R.; Panvini, R.; Petraske, E.; Stone, Sheldon; Waters, J.; Webster, M.

In: Nuclear Physics B, Vol. 90, No. C, 1975, p. 384-396.

Research output: Contribution to journalArticle

Alam, MS, Brabson, BB, Galloway, K, Mercer, R, Baggett, NV, Fowler, EC, Huebschman, ML, Kreymer, AE, Rogers, AH, Baglin, C, Hanlon, J, Kamat, R, Panvini, R, Petraske, E, Stone, S, Waters, J & Webster, M 1975, 'A study of particle spectra and mass distributions in the reaction π+ + p → n (forward) + (2π, 4π, 6π) at 8.4 GeV/c', Nuclear Physics B, vol. 90, no. C, pp. 384-396. https://doi.org/10.1016/0550-3213(75)90653-7
Alam, M. S. ; Brabson, B. B. ; Galloway, K. ; Mercer, R. ; Baggett, N. V. ; Fowler, E. C. ; Huebschman, M. L. ; Kreymer, A. E. ; Rogers, A. H. ; Baglin, C. ; Hanlon, J. ; Kamat, R. ; Panvini, R. ; Petraske, E. ; Stone, Sheldon ; Waters, J. ; Webster, M. / A study of particle spectra and mass distributions in the reaction π+ + p → n (forward) + (2π, 4π, 6π) at 8.4 GeV/c. In: Nuclear Physics B. 1975 ; Vol. 90, No. C. pp. 384-396.
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abstract = "Results are reported on particle spectra and invariant mass distributions from the reaction π+ + p → n (forward) + (2π, 4π,6π) at 8.4 GeV/c. The data were obtained with the SLAC 15-inch Rapid Cycling Bubble Chamber which was triggered by detecting fast forward neutrons interacting in downstream optical spark chambers. The main features of the data can be simulated with a Monte-Carlo program which incorporates Lorentz-invariant phase space modified by exponential transverse momentum damping on each final state particle and, in addition, takes into account the geometrical constraints and triggering requirements of the system. Resonance production in some channels is seen to deviate from background distributions.",
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AU - Alam, M. S.

AU - Brabson, B. B.

AU - Galloway, K.

AU - Mercer, R.

AU - Baggett, N. V.

AU - Fowler, E. C.

AU - Huebschman, M. L.

AU - Kreymer, A. E.

AU - Rogers, A. H.

AU - Baglin, C.

AU - Hanlon, J.

AU - Kamat, R.

AU - Panvini, R.

AU - Petraske, E.

AU - Stone, Sheldon

AU - Waters, J.

AU - Webster, M.

PY - 1975

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N2 - Results are reported on particle spectra and invariant mass distributions from the reaction π+ + p → n (forward) + (2π, 4π,6π) at 8.4 GeV/c. The data were obtained with the SLAC 15-inch Rapid Cycling Bubble Chamber which was triggered by detecting fast forward neutrons interacting in downstream optical spark chambers. The main features of the data can be simulated with a Monte-Carlo program which incorporates Lorentz-invariant phase space modified by exponential transverse momentum damping on each final state particle and, in addition, takes into account the geometrical constraints and triggering requirements of the system. Resonance production in some channels is seen to deviate from background distributions.

AB - Results are reported on particle spectra and invariant mass distributions from the reaction π+ + p → n (forward) + (2π, 4π,6π) at 8.4 GeV/c. The data were obtained with the SLAC 15-inch Rapid Cycling Bubble Chamber which was triggered by detecting fast forward neutrons interacting in downstream optical spark chambers. The main features of the data can be simulated with a Monte-Carlo program which incorporates Lorentz-invariant phase space modified by exponential transverse momentum damping on each final state particle and, in addition, takes into account the geometrical constraints and triggering requirements of the system. Resonance production in some channels is seen to deviate from background distributions.

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