Photon and light meson production in hadronic Z0 decays

OPAL Collaboration

doi:10.1007/s100529800969

Photon and light meson production in hadronic Z⁰ decays

OPAL Collaboration

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

48 Scopus citations

Abstract

The inclusive production rates and differential cross-sections of photons and mesons with a final state containing photons have been measured with the OPAL detector at LEP. The light mesons covered by the measurements are the π⁰, η, ρ(770)±, ω(782), η′(958) and a_o(980)±. The particle multiplicities per hadronic Z⁰ decay, extrapolated to the full energy range, are: 〈n_γ〉 = 20.97 ± 0.02 ± 1.15 〈n_π0〉 = 9.55 ± 0.06 ± 0.75 〈n_η〉 = 0.97 ± 0.03 ± 0.11 〈n_ρ±〉 = 2.40 ± 0.06 ± 0.43 〈n_ω〉 = 1.04 ± 0.04 ± 0.14 〈n_η′〉 = 0.14 ± 0.01 ± 0.02 〈n_a0±〉 = 0.27 ± 0.04 ± 0.10 where the first errors are statistical and the second systematic. In general, the results are in agreement with the predictions of the JETSET and HERWIG Monte Carlo models.

Original language	English
Pages (from-to)	411-437
Number of pages	27
Journal	European Physical Journal C
Volume	5
Issue number	3
DOIs	https://doi.org/10.1007/s100529800969
State	Published - 1 Jan 1998
Externally published	Yes

ASJC Scopus subject areas

Engineering (miscellaneous)
Physics and Astronomy (miscellaneous)

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10.1007/s100529800969

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@article{d6748ed3cca845e1b2c0ed55cdb72bbe,

title = "Photon and light meson production in hadronic Z0 decays",

abstract = "The inclusive production rates and differential cross-sections of photons and mesons with a final state containing photons have been measured with the OPAL detector at LEP. The light mesons covered by the measurements are the π0, η, ρ(770)±, ω(782), η′(958) and ao(980)±. The particle multiplicities per hadronic Z0 decay, extrapolated to the full energy range, are: 〈nγ〉 = 20.97 ± 0.02 ± 1.15 〈nπ0〉 = 9.55 ± 0.06 ± 0.75 〈nη〉 = 0.97 ± 0.03 ± 0.11 〈nρ±〉 = 2.40 ± 0.06 ± 0.43 〈nω〉 = 1.04 ± 0.04 ± 0.14 〈nη′〉 = 0.14 ± 0.01 ± 0.02 〈na0±〉 = 0.27 ± 0.04 ± 0.10 where the first errors are statistical and the second systematic. In general, the results are in agreement with the predictions of the JETSET and HERWIG Monte Carlo models.",

author = "{OPAL Collaboration} and K. Ackerstaff and G. Alexander and J. Allison and N. Altekamp and Anderson, {K. J.} and S. Anderson and S. Arcelli and S. Asai and Ashby, {S. F.} and D. Axen and G. Azuelos and Ball, {A. H.} and E. Barberio and Barlow, {R. J.} and R. Bartoldus and Batley, {J. R.} and S. Baumann and J. Bechtluft and T. Behnke and Bell, {K. W.} and G. Bella and S. Bentvelsen and S. Bethke and S. Betts and O. Biebel and A. Biguzzi and Bird, {S. D.} and V. Blobel and Bloodworth, {I. J.} and M. Bobinski and P. Bock and J. B{\"o}hme and M. Boutemeur and S. Braibant and P. Bright-Thomas and Brown, {R. M.} and Burckhart, {H. J.} and C. Burgard and R. B{\"u}rgin and P. Capiluppi and Carnegie, {R. K.} and Carter, {A. A.} and Carter, {J. R.} and Chang, {C. Y.} and Charlton, {D. G.} and D. Chrisman and C. Ciocca and Clarke, {P. E.L.} and E. Clay and R. Folman",

year = "1998",

month = jan,

day = "1",

doi = "10.1007/s100529800969",

language = "English",

volume = "5",

pages = "411--437",

journal = "European Physical Journal C",

issn = "1434-6044",

publisher = "Springer New York",

number = "3",

}

TY - JOUR

T1 - Photon and light meson production in hadronic Z0 decays

AU - OPAL Collaboration

AU - Ackerstaff, K.

AU - Alexander, G.

AU - Allison, J.

AU - Altekamp, N.

AU - Anderson, K. J.

AU - Anderson, S.

AU - Arcelli, S.

AU - Asai, S.

AU - Ashby, S. F.

AU - Axen, D.

AU - Azuelos, G.

AU - Ball, A. H.

AU - Barberio, E.

AU - Barlow, R. J.

AU - Bartoldus, R.

AU - Batley, J. R.

AU - Baumann, S.

AU - Bechtluft, J.

AU - Behnke, T.

AU - Bell, K. W.

AU - Bella, G.

AU - Bentvelsen, S.

AU - Bethke, S.

AU - Betts, S.

AU - Biebel, O.

AU - Biguzzi, A.

AU - Bird, S. D.

AU - Blobel, V.

AU - Bloodworth, I. J.

AU - Bobinski, M.

AU - Bock, P.

AU - Böhme, J.

AU - Boutemeur, M.

AU - Braibant, S.

AU - Bright-Thomas, P.

AU - Brown, R. M.

AU - Burckhart, H. J.

AU - Burgard, C.

AU - Bürgin, R.

AU - Capiluppi, P.

AU - Carnegie, R. K.

AU - Carter, A. A.

AU - Carter, J. R.

AU - Chang, C. Y.

AU - Charlton, D. G.

AU - Chrisman, D.

AU - Ciocca, C.

AU - Clarke, P. E.L.

AU - Clay, E.

AU - Folman, R.

PY - 1998/1/1

Y1 - 1998/1/1

N2 - The inclusive production rates and differential cross-sections of photons and mesons with a final state containing photons have been measured with the OPAL detector at LEP. The light mesons covered by the measurements are the π0, η, ρ(770)±, ω(782), η′(958) and ao(980)±. The particle multiplicities per hadronic Z0 decay, extrapolated to the full energy range, are: 〈nγ〉 = 20.97 ± 0.02 ± 1.15 〈nπ0〉 = 9.55 ± 0.06 ± 0.75 〈nη〉 = 0.97 ± 0.03 ± 0.11 〈nρ±〉 = 2.40 ± 0.06 ± 0.43 〈nω〉 = 1.04 ± 0.04 ± 0.14 〈nη′〉 = 0.14 ± 0.01 ± 0.02 〈na0±〉 = 0.27 ± 0.04 ± 0.10 where the first errors are statistical and the second systematic. In general, the results are in agreement with the predictions of the JETSET and HERWIG Monte Carlo models.

AB - The inclusive production rates and differential cross-sections of photons and mesons with a final state containing photons have been measured with the OPAL detector at LEP. The light mesons covered by the measurements are the π0, η, ρ(770)±, ω(782), η′(958) and ao(980)±. The particle multiplicities per hadronic Z0 decay, extrapolated to the full energy range, are: 〈nγ〉 = 20.97 ± 0.02 ± 1.15 〈nπ0〉 = 9.55 ± 0.06 ± 0.75 〈nη〉 = 0.97 ± 0.03 ± 0.11 〈nρ±〉 = 2.40 ± 0.06 ± 0.43 〈nω〉 = 1.04 ± 0.04 ± 0.14 〈nη′〉 = 0.14 ± 0.01 ± 0.02 〈na0±〉 = 0.27 ± 0.04 ± 0.10 where the first errors are statistical and the second systematic. In general, the results are in agreement with the predictions of the JETSET and HERWIG Monte Carlo models.

UR - http://www.scopus.com/inward/record.url?scp=0000168253&partnerID=8YFLogxK

U2 - 10.1007/s100529800969

DO - 10.1007/s100529800969

M3 - Article

AN - SCOPUS:0000168253

VL - 5

SP - 411

EP - 437

JO - European Physical Journal C

JF - European Physical Journal C

SN - 1434-6044

IS - 3

ER -

Photon and light meson production in hadronic Z⁰ decays

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