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Measurement of Γ(η→...
Measurement of Γ(η→π+π-γ)/Γ(η→π+π-π0) 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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Bencivenni, G. (author)
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Bini, C. (author)
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Bloise, C. (author)
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Bocci, V. (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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- Caldeira Balkeståhl, Li (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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Czerwiński, E. (author)
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Dané, 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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De Simone, P. (author)
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Di Domenico, A. (author)
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Di Donato, C. (author)
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Di Micco, B. (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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Höistad, B. (author)
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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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Prado Longhi, I. (author)
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Ranieri, A. (author)
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- Redmer, C. F. (author)
- Uppsala universitet,Institutionen för fysik och astronomi
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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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Versaci, R. (author)
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Wiślicki, W. (author)
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- Wolke, Magnus (author)
- Uppsala universitet,Kärnfysik
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Xu, G. (author)
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Zdebik, J. (author)
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
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In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 718:3, s. 910-914
- Related links:
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https://art.torverga...
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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
- The ratio Rη=Γ(η→π+π-γ)/Γ(η→π+π-π0) has been measured by analysing 22 million φ→ηγ decays collected by the KLOE experiment at DAΦNE, corresponding to an integrated luminosity of 558 pb-1. The η→π+π-γ proceeds both via the ρ resonant contribution, and possibly a non-resonant direct term, connected to the box anomaly. Our result, Rη=0.1856±0.0005stat±0.0028syst, points out a sizable contribution of the direct term to the total width. The di-pion invariant mass for the η→π+π-γ decay could be described in a model-independent approach in terms of a single free parameter, α. The determined value of the parameter α is α=(1.32±0.08stat-0.09syst+0.10±0.02theo) GeV-2.
Keyword
- η decays
- Chiral perturbation theory
- E+e- collisions
- Light mesons
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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Bocci, V.
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Bossi, F.
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Branchini, P.
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Budano, A.
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Caldeira Balkest ...
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Capon, G.
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Ceradini, F.
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Ciambrone, P.
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Czerwiński, E.
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Dané, 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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De Simone, P.
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Di Domenico, A.
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Di Donato, C.
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Di Micco, B.
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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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Höistad, B.
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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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Prado Longhi, I.
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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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Versaci, R.
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Wiślicki, W.
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Wolke, Magnus
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Xu, G.
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Zdebik, J.
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show less...
- Articles in the publication
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Physics Letters ...
- By the university
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Uppsala University