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Study of the Dalitz decay phi -> eta e(+)e(-) with the KLOE detector
- Babusci, D. (author)
- Balwierz-Pytko, I. (author)
- Bencivenni, G. (author)
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- Bloise, C. (author)
- Bossi, F. (author)
- Branchini, P. (author)
- Budano, A. (author)
- Ceradini, F. (author)
- Ciambrone, P. (author)
- Curciarello, F. (author)
- Czerwinski, E. (author)
- Dane, E. (author)
- De Leo, V. (author)
- De Luciah, E. (author)
- De Robertis, G. (author)
- De Santis, A. (author)
- De Simone, P. (author)
- Di Cicco, A. (author)
- Di Domenico, A. (author)
- Di Salvo, R. (author)
- Domenici, D. (author)
- Erriqueza, O. (author)
- Fanizzia, G. (author)
- Fantinio, A. (author)
- Felici, G. (author)
- Fiore, S. (author)
- Franzini, P. (author)
- Gajos, A. (author)
- Gauzzi, P. (author)
- Giardina, G. (author)
- Giovannella, S. (author)
- Graziani, E. (author)
- Happacher, F. (author)
- Kaminska, D. (author)
- Krzemien, W. (author)
- Lee-Franzini, J. (author)
- Loddo, F. (author)
- Loffredo, S. (author)
- Mandaglio, G. (author)
- Martemianov, M. (author)
- Martini, M. (author)
- Mascolo, M. (author)
- Messi, R. (author)
- Miscetti, S. (author)
- Morello, G. (author)
- Moricciani, D. (author)
- Moskal, P. (author)
- Palladino, A. (author)
- Passeri, A. (author)
- Patera, V. (author)
- Longhi, I. Prado (author)
- Ranieri, A. (author)
- Santangelo, P. (author)
- Sarra, I. (author)
- Schioppa, M. (author)
- Sciascia, B. (author)
- Silarski, M. (author)
- Tortora, L. (author)
- Venanzoni, G. (author)
- Wislicki, W. (author)
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- (creator_code:org_t)
- Elsevier BV, 2015
- 2015
- English.
- In: Physics Letters B. - : Elsevier BV. - 0370-2693 .- 1873-2445. ; 742, s. 1-6
- Journal article (peer-reviewed)
Abstract
Subject headings
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- We have studied the vector to pseudoscalar conversion decay phi -> eta e(+)e(-), with.. eta -> pi(0)pi(0)pi(0), with the KLOE detector at DA phi NE. The data set of 1.7 fb(-1) of e(+)e(-) collisions at root s similar to M-phi contains a clear conversion decay signal of similar to 31,000 events from which we measured a value of BR(phi -> eta e(+)e-) = (1.075 +/- 0.007 +/- 0.038) x 10(-4). The same sample is used to determine the transition form factor by a fit to the e(+)e(-) invariant mass spectrum, obtaining b(phi eta)=( 1.28 +/- 0.10(-0.08)(+0.09)) GeV-2, that improves by a factor of five the precision of the previous measurement and is in good agreement with VMD expectations.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Keyword
- e(+)e(-) collisions
- Conversion decay
- Transition form factor
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Physics Letters B (Search for host publication in LIBRIS)
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- By the author/editor
- Babusci, D.
- Balwierz-Pytko, ...
- Bencivenni, G.
- Bloise, C.
- Bossi, F.
- Branchini, P.
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- Budano, A.
- Balkeståhl, Li C ...
- Ceradini, F.
- Ciambrone, P.
- Curciarello, F.
- Czerwinski, E.
- Dane, E.
- De Leo, V.
- De Luciah, E.
- De Robertis, G.
- De Santis, A.
- De Simone, P.
- Di Cicco, A.
- Di Domenico, A.
- Di Salvo, R.
- Domenici, D.
- Erriqueza, O.
- Fanizzia, G.
- Fantinio, A.
- Felici, G.
- Fiore, S.
- Franzini, P.
- Gajos, A.
- Gauzzi, P.
- Giardina, G.
- Giovannella, S.
- Graziani, E.
- Happacher, F.
- Heijkenskjöld, L ...
- Höistad, Bo
- Johansson, Tord
- Kaminska, D.
- Krzemien, W.
- Kupsc, Andrzej
- Lee-Franzini, J.
- Loddo, F.
- Loffredo, S.
- Mandaglio, G.
- Martemianov, M.
- Martini, M.
- Mascolo, M.
- Messi, R.
- Miscetti, S.
- Morello, G.
- Moricciani, D.
- Moskal, P.
- Palladino, A.
- Passeri, A.
- Patera, V.
- Longhi, I. Prado
- Ranieri, A.
- Santangelo, P.
- Sarra, I.
- Schioppa, M.
- Sciascia, B.
- Silarski, M.
- Tortora, L.
- Venanzoni, G.
- Wislicki, W.
- Wolke, Magnus
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- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- Articles in the publication
- Physics Letters ...
- By the university
- Uppsala University
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