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Search for light vector boson production in e(+)e(-) -> mu(+)mu(-)gamma interactions with the KLOE experiment

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)
Balkeståhl, L. Caldeira (author)
Ceradini, F. (author)
Ciambrone, P. (author)
Curciarello, F. (author)
Czerwinski, E. (author)
Dane, E. (author)
De Leo, V. (author)
De Lucia, 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)
Erriquez, O. (author)
Fanizzi, G. (author)
Fantini, 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)
Heijkenskjöld, Lena (author)
Holstad, B. (author)
Johansson, Tord (author)
Kacprzak, K. (author)
Kaminska, D. (author)
Krzemien, W. (author)
Kupsc, Andrzej (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)
Nguyen, F. (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)
Wolke, Magnus (author)
Zdebik, J. (author)
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 (publisher)
2014
2014
English.
In: Physics Letters B. - 0370-2693. ; 736, 459-464
  • swepub:Mat__t
Abstract Subject headings
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  • We have searched for a light vector boson U, the possible carrier of a "dark force", with the KLOE detector at the DA Phi NE e(+)e(-) collider, motivated by astrophysical evidence for the presence of dark matter in the Universe. Using e(+)e(-) collisions collected with an integrated luminosity of 239.3 pb(-1), we look for a dimuon mass peak in the reaction e(+)e(-) -> mu(+)mu(-)gamma, corresponding to the decay U -> mu(+)mu(-). We find no evidence for a U vector boson signal. We set a 90% CL upper limit for the mixing parameter squared between the photon and the U boson of 1.6 x 10(-5) to 8.6 x 10(-7) for the mass region 520 < m(U) < 980 MeV.  

Subject headings

Natural Sciences  (hsv)
Physical Sciences  (hsv)
Naturvetenskap  (hsv)
Fysik  (hsv)

Keyword

Dark matter
Dark forces
U boson

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