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Measurement of eta ...
Measurement of eta meson production in gamma gamma interactions and Gamma(eta -> gamma gamma) with the KLOE detector
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Babusci, D. (author)
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Badoni, D. (author)
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Balwierz-Pytko, I. (author)
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show more...
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Bencivenni, G. (author)
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Bini, C. (author)
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Bloise, C. (author)
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Bossi, F. (author)
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Branchini, P. (author)
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Budano, A. (author)
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- Balkestahl, Li Caldeira (author)
- Uppsala universitet,Kärnfysik
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Capon, G. (author)
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Ceradini, F. (author)
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Ciambrone, P. (author)
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Czerwinski, E. (author)
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Dane, E. (author)
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De Lucia, E. (author)
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De Robertis, G. (author)
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De Santis, A. (author)
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Di Domenico, A. (author)
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Di Donato, C. (author)
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Di Salvo, R. (author)
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Domenici, D. (author)
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Erriquez, O. (author)
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Fanizzi, G. (author)
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Fantini, A. (author)
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Felici, G. (author)
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Fiore, S. (author)
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Franzini, P. (author)
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Gauzzi, P. (author)
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Giardina, G. (author)
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Giovannella, S. (author)
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Gonnella, F. (author)
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Graziani, E. (author)
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Happacher, F. (author)
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- Heijkenskjöld, Lena (author)
- Uppsala universitet,Kärnfysik
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- Höistad, Bo (author)
- Uppsala universitet,Kärnfysik
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Iafolla, L. (author)
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- Jacewicz, Marek (author)
- Uppsala universitet,Högenergifysik
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- Johansson, Tord (author)
- Uppsala universitet,Kärnfysik
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- Kupsc, Andrzej (author)
- Uppsala universitet,Kärnfysik
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Lee-Franzini, J. (author)
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Leverington, B. (author)
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Loddo, F. (author)
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Loffredo, S. (author)
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Mandaglio, G. (author)
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Martemianov, M. (author)
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Martini, M. (author)
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Mascolo, M. (author)
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Messi, R. (author)
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Miscetti, S. (author)
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Morello, G. (author)
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Moricciani, D. (author)
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Moskal, P. (author)
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Nguyen, F. (author)
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Passeri, A. (author)
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Patera, V. (author)
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Longhi, I. Prado (author)
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Ranieri, A. (author)
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Redmer, C. F. (author)
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Santangelo, P. (author)
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Sarra, I. (author)
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Schioppa, M. (author)
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Sciascia, B. (author)
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Silarski, M. (author)
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Taccini, C. (author)
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Tortora, L. (author)
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Venanzoni, G. (author)
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Wislicki, W. (author)
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- Wolke, Magnus (author)
- Uppsala universitet,Kärnfysik
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Zdebik, J. (author)
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(creator_code:org_t)
- 2013
- 2013
- English.
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In: Journal of High Energy Physics (JHEP). - 1126-6708 .- 1029-8479. ; :1, s. 119-
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- We present a measurement of eta meson production in photon-photon interactions produced by electron-positron beams colliding with root s = 1 GeV. The measurement is done with the KLOE detector at the phi-factory DA Phi NE with an integrated luminosity of 0.24 fb(-1). The e(+)e(-) -> e(+)e(-)eta cross section is measured without detecting the outgoing electron and positron, selecting the decays eta -> pi(+)pi(-)pi(0) and eta -> pi(0)pi(0)pi(0). The most relevant background is due to e(+)e(-) -> eta gamma when the monochromatic photon escapes detection. The cross section for this process is measured as sigma(e(+)e(-) -> eta gamma) = (856 +/- 8(stat) +/- 16(syst)) pb. The combined result for the e(+)e(-) -> e(+)e(-)eta cross section is sigma(e(+)e(-) -> e(+)e(-)eta) = (32.72 +/- 1.27(stat) +/- 0.70(syst)) pb. From this we derive the partial width Gamma(eta -> gamma gamma) = (520 +/- 20(stat) +/- 13(syst)) eV. This is in agreement with the world average and is the most precise measurement to date.
Keyword
- e plus -e- Experiments
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Babusci, D.
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Badoni, D.
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Balwierz-Pytko, ...
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Bencivenni, G.
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Bini, C.
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Bloise, C.
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show more...
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Bossi, F.
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Branchini, P.
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Budano, A.
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Balkestahl, Li C ...
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Capon, G.
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Ceradini, F.
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Ciambrone, P.
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Czerwinski, E.
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Dane, E.
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De Lucia, E.
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De Robertis, G.
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De Santis, A.
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Di Domenico, A.
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Di Donato, C.
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Di Salvo, R.
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Domenici, D.
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Erriquez, O.
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Fanizzi, G.
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Fantini, A.
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Felici, G.
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Fiore, S.
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Franzini, P.
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Gauzzi, P.
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Giardina, G.
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Giovannella, S.
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Gonnella, F.
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Graziani, E.
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Happacher, F.
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Heijkenskjöld, L ...
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Höistad, Bo
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Iafolla, L.
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Jacewicz, Marek
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Johansson, Tord
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Kupsc, Andrzej
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Lee-Franzini, J.
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Leverington, B.
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Loddo, F.
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Loffredo, S.
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Mandaglio, G.
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Martemianov, M.
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Martini, M.
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Mascolo, M.
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Messi, R.
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Miscetti, S.
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Morello, G.
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Moricciani, D.
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Moskal, P.
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Nguyen, F.
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Passeri, A.
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Patera, V.
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Longhi, I. Prado
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Ranieri, A.
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Redmer, C. F.
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Santangelo, P.
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Sarra, I.
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Schioppa, M.
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Sciascia, B.
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Silarski, M.
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Taccini, C.
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Tortora, L.
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Venanzoni, G.
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Wislicki, W.
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Wolke, Magnus
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Zdebik, J.
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show less...
- Articles in the publication
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Journal of High ...
- By the university
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Uppsala University