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Adeegso tilmaantan si aad u carrabbaabdo ama ugu samayso link qoraalkan http://hdl.handle.net/2307/395
Cinwaan: Search for the K-S -> e(+)e(-) decay with the KLOE detector
Qore: Ambrosino, F.
Antonelli, A.
Antonelli, M.
Archilli, F.
Beltrame, R.
Bencivenni, G.
Bertolucci, S.
Bini, C.
Bloise, C.
Bocchetta, Simona Serena
Bossi, F.
Branchini, P.
Campana, P.
Capon, G.
Capriotti, D.
Capussela, T.
Ceradini, Filippo
Ciambrone, P.
Crucianelli, F.
De Lucia, E.
De Santis, A.
De Simone, P.
De Zorzi, G.
Denig, A.
Di Domenico, A.
Di Donato, C.
Di Micco, Biagio
Dreucci, M.
Felici, G.
Ferrer, M. L.
Fiore, S.
Franzini, P.
Gatti, C.
Gauzzi, P.
Giovannella, S.
Graziani, E.
Kluge, W.
Kulikov, V.
Lanfranchi, G.
Lee-Franzini, J.
Leone, D.
Martini, M.
Massarotti, P.
Meola, S.
Miscetti, S.
Moulson, M.
Mueller, S.
Murtas, F.
Napolitano, M.
Nguyen, Federico
Palutan, M.
Pasqualucci, E.
Passeri, A.
Patera, V.
Perfetto, F.
Santangelo, P.
Sciascia, B.
Sciubba, A.
Sibidanov, A.
Spadaro, T.
Testa, M.
Tortora, L.
Valente, P.
Venanzoni, G.
Versaci, R.
Ereyga furaha: e+e− collisiosions
CP symmetry
KLOE experiment
Chiral perturbation the0ry
Rare Ks decays
Taariikhda qoraalka: 2009
Tifaftire: Elsevier Science BV
Xusid: 2
Abstract: We present the result of a direct search for the decay K-S -> e(+)e(-),obtained with a sample of e(+)e(-) -> phi -> KSKL events produced at DAphi NE, the Frascati phi-factory, for an integrated luminosity of 1.9fb(-1). The search has been performed using a pure K-S beam tagged bythe simultaneous detection of a K-L interaction in the calorimeter.Background rejection has been optimized by using both kinematic andparticle identification cuts. We find BR(KS -> e(+)e(-)) < 9 x 10(-9)at 90% CL, which improves by an order of magnitude on the previous bestlimit, (C) 2009 Elsevier B.V, All rights reserved.
URI : http://hdl.handle.net/2307/395
ISSN : 0370-2693
DOI : 10.1016/j.physletb.2009.01.037
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X_Dipartimento di Fisica 'Edoardo Amaldi'

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