Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson

A. Courau, R. P. Johnson, S. S. Sherman, W. B. Atwood, P. H. Baillon, B. C. Barish, G. R. Bonneaud, G. J. Donaldson, R. Dubois, M. M. Duro, E. E. Elsen, S. G. Gao, Y. Z. Huang, G. M. Irwin, H. Kichimi, J. Kirkby, D. E. Klem, D. E. Koop, J. Ludwig, G. B. MillsA. Ogawa, T. Pal, D. Perret-Gallix, R. Pitthan, D. L. Pollard, C. Y. Prescott, L. Z. Rivkin, L. S. Rochester, W. Ruckstuhl, Makoto Sakuda, E. J. Siskind, R. Stroynowski, S. Q. Wang, S. G. Wojcicki, H. Yamamoto, W. G. Yan, C. C. Young

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

Results are presented of an untagged e+e- → e+e- + π+π- experiment performed at PEP with the DELCO detector. In the invariant-mass range 0.7 ≤ Wππ <2.0 GeV/c2, the QED e+e- background is identified and eliminated, and both the π+π- predictions and the μ+μ- and K+K- background substractions are normalized to the measurement of the e e+e- events. The results agree with a simple model of superposition and interference of the f0 (1270) resonance, produced with helicity 2, with a Born-term continuum. From a fit of the model to the data, the radiative width of the f0 is determined to be Γf 0→γγ = 2.70 ± 0.21 keV.

Original languageEnglish
Pages (from-to)227-231
Number of pages5
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume147
Issue number1-3
DOIs
Publication statusPublished - Nov 1 1984
Externally publishedYes

Fingerprint

pair production
pions
mesons
interactions
continuums
interference
detectors
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson. / Courau, A.; Johnson, R. P.; Sherman, S. S.; Atwood, W. B.; Baillon, P. H.; Barish, B. C.; Bonneaud, G. R.; Donaldson, G. J.; Dubois, R.; Duro, M. M.; Elsen, E. E.; Gao, S. G.; Huang, Y. Z.; Irwin, G. M.; Kichimi, H.; Kirkby, J.; Klem, D. E.; Koop, D. E.; Ludwig, J.; Mills, G. B.; Ogawa, A.; Pal, T.; Perret-Gallix, D.; Pitthan, R.; Pollard, D. L.; Prescott, C. Y.; Rivkin, L. Z.; Rochester, L. S.; Ruckstuhl, W.; Sakuda, Makoto; Siskind, E. J.; Stroynowski, R.; Wang, S. Q.; Wojcicki, S. G.; Yamamoto, H.; Yan, W. G.; Young, C. C.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 147, No. 1-3, 01.11.1984, p. 227-231.

Research output: Contribution to journalArticle

Courau, A, Johnson, RP, Sherman, SS, Atwood, WB, Baillon, PH, Barish, BC, Bonneaud, GR, Donaldson, GJ, Dubois, R, Duro, MM, Elsen, EE, Gao, SG, Huang, YZ, Irwin, GM, Kichimi, H, Kirkby, J, Klem, DE, Koop, DE, Ludwig, J, Mills, GB, Ogawa, A, Pal, T, Perret-Gallix, D, Pitthan, R, Pollard, DL, Prescott, CY, Rivkin, LZ, Rochester, LS, Ruckstuhl, W, Sakuda, M, Siskind, EJ, Stroynowski, R, Wang, SQ, Wojcicki, SG, Yamamoto, H, Yan, WG & Young, CC 1984, 'Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 147, no. 1-3, pp. 227-231. https://doi.org/10.1016/0370-2693(84)90625-7
Courau, A. ; Johnson, R. P. ; Sherman, S. S. ; Atwood, W. B. ; Baillon, P. H. ; Barish, B. C. ; Bonneaud, G. R. ; Donaldson, G. J. ; Dubois, R. ; Duro, M. M. ; Elsen, E. E. ; Gao, S. G. ; Huang, Y. Z. ; Irwin, G. M. ; Kichimi, H. ; Kirkby, J. ; Klem, D. E. ; Koop, D. E. ; Ludwig, J. ; Mills, G. B. ; Ogawa, A. ; Pal, T. ; Perret-Gallix, D. ; Pitthan, R. ; Pollard, D. L. ; Prescott, C. Y. ; Rivkin, L. Z. ; Rochester, L. S. ; Ruckstuhl, W. ; Sakuda, Makoto ; Siskind, E. J. ; Stroynowski, R. ; Wang, S. Q. ; Wojcicki, S. G. ; Yamamoto, H. ; Yan, W. G. ; Young, C. C. / Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 1984 ; Vol. 147, No. 1-3. pp. 227-231.
@article{9ca171721cd3482dbe45efd5a04cb868,
title = "Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson",
abstract = "Results are presented of an untagged e+e- → e+e- + π+π- experiment performed at PEP with the DELCO detector. In the invariant-mass range 0.7 ≤ Wππ <2.0 GeV/c2, the QED e+e- background is identified and eliminated, and both the π+π- predictions and the μ+μ- and K+K- background substractions are normalized to the measurement of the e e+e- events. The results agree with a simple model of superposition and interference of the f0 (1270) resonance, produced with helicity 2, with a Born-term continuum. From a fit of the model to the data, the radiative width of the f0 is determined to be Γf 0→γγ = 2.70 ± 0.21 keV.",
author = "A. Courau and Johnson, {R. P.} and Sherman, {S. S.} and Atwood, {W. B.} and Baillon, {P. H.} and Barish, {B. C.} and Bonneaud, {G. R.} and Donaldson, {G. J.} and R. Dubois and Duro, {M. M.} and Elsen, {E. E.} and Gao, {S. G.} and Huang, {Y. Z.} and Irwin, {G. M.} and H. Kichimi and J. Kirkby and Klem, {D. E.} and Koop, {D. E.} and J. Ludwig and Mills, {G. B.} and A. Ogawa and T. Pal and D. Perret-Gallix and R. Pitthan and Pollard, {D. L.} and Prescott, {C. Y.} and Rivkin, {L. Z.} and Rochester, {L. S.} and W. Ruckstuhl and Makoto Sakuda and Siskind, {E. J.} and R. Stroynowski and Wang, {S. Q.} and Wojcicki, {S. G.} and H. Yamamoto and Yan, {W. G.} and Young, {C. C.}",
year = "1984",
month = "11",
day = "1",
doi = "10.1016/0370-2693(84)90625-7",
language = "English",
volume = "147",
pages = "227--231",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1-3",

}

TY - JOUR

T1 - Pion-pair production from γγ interactions at PEP and the radiative width of the fo meson

AU - Courau, A.

AU - Johnson, R. P.

AU - Sherman, S. S.

AU - Atwood, W. B.

AU - Baillon, P. H.

AU - Barish, B. C.

AU - Bonneaud, G. R.

AU - Donaldson, G. J.

AU - Dubois, R.

AU - Duro, M. M.

AU - Elsen, E. E.

AU - Gao, S. G.

AU - Huang, Y. Z.

AU - Irwin, G. M.

AU - Kichimi, H.

AU - Kirkby, J.

AU - Klem, D. E.

AU - Koop, D. E.

AU - Ludwig, J.

AU - Mills, G. B.

AU - Ogawa, A.

AU - Pal, T.

AU - Perret-Gallix, D.

AU - Pitthan, R.

AU - Pollard, D. L.

AU - Prescott, C. Y.

AU - Rivkin, L. Z.

AU - Rochester, L. S.

AU - Ruckstuhl, W.

AU - Sakuda, Makoto

AU - Siskind, E. J.

AU - Stroynowski, R.

AU - Wang, S. Q.

AU - Wojcicki, S. G.

AU - Yamamoto, H.

AU - Yan, W. G.

AU - Young, C. C.

PY - 1984/11/1

Y1 - 1984/11/1

N2 - Results are presented of an untagged e+e- → e+e- + π+π- experiment performed at PEP with the DELCO detector. In the invariant-mass range 0.7 ≤ Wππ <2.0 GeV/c2, the QED e+e- background is identified and eliminated, and both the π+π- predictions and the μ+μ- and K+K- background substractions are normalized to the measurement of the e e+e- events. The results agree with a simple model of superposition and interference of the f0 (1270) resonance, produced with helicity 2, with a Born-term continuum. From a fit of the model to the data, the radiative width of the f0 is determined to be Γf 0→γγ = 2.70 ± 0.21 keV.

AB - Results are presented of an untagged e+e- → e+e- + π+π- experiment performed at PEP with the DELCO detector. In the invariant-mass range 0.7 ≤ Wππ <2.0 GeV/c2, the QED e+e- background is identified and eliminated, and both the π+π- predictions and the μ+μ- and K+K- background substractions are normalized to the measurement of the e e+e- events. The results agree with a simple model of superposition and interference of the f0 (1270) resonance, produced with helicity 2, with a Born-term continuum. From a fit of the model to the data, the radiative width of the f0 is determined to be Γf 0→γγ = 2.70 ± 0.21 keV.

UR - http://www.scopus.com/inward/record.url?scp=0011675746&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0011675746&partnerID=8YFLogxK

U2 - 10.1016/0370-2693(84)90625-7

DO - 10.1016/0370-2693(84)90625-7

M3 - Article

AN - SCOPUS:0011675746

VL - 147

SP - 227

EP - 231

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1-3

ER -