Physics Letters B 746 (2015) 178–185
Contents lists available at ScienceDirect
Physics Letters B
www.elsevier.com/locate/physletb
Search for the dark photon in π
0
decays
NA48/2 Collaboration
J.R. Batley,
G. Kalmus, C. Lazzeroni
2,3
, D.J. Munday, M.W. Slater
2
, S.A. Wotton
Cavendish Laboratory, University of Cambridge, Cambridge, CB3 0HE, UK
4
R. Arcidiacono
5
, G. Bocquet, N. Cabibbo
1
, A. Ceccucci, D. Cundy
6
, V. Falaleev, M. Fidecaro,
L. Gatignon, A. Gonidec, W. Kubischta, A. Norton
7
, A. Maier, M. Patel
8
, A. Peters
CERN, CH-1211 Genève 23, Switzerland
S. Balev
1
, P.L. Frabetti, E. Gersabeck
9
, E. Goudzovski
∗,2,3,10
, P. Hristov
11
, V. Kekelidze,
V. Kozhuharov
12,13
, L. Litov
12
, D. Madigozhin, N. Molokanova, I. Polenkevich,
Yu. Potrebenikov, S. Stoynev
14
, A. Zinchenko
Joint Institute for Nuclear Research, 141980 Dubna (MO), Russia
E. Monnier
15
, E. Swallow, R. Winston
16
The Enrico Fermi Institute, The University of Chicago, Chicago, IL 60126, USA
P. Rubin
17
, A. Walker
Department of Physics and Astronomy, University of Edinburgh, Edinburgh, EH9 3JZ, UK
W. Baldini, A. Cotta Ramusino, P. Dalpiaz, C. Damiani, M. Fiorini, A. Gianoli, M. Martini,
F. Petrucci, M. Savrié, M. Scarpa, H. Wahl
Dipartimento di Fisica e Scienze della Terra dell’Università e Sezione dell’INFN di Ferrara, I-44122 Ferrara, Italy
A. Bizzeti
18
, M. Lenti, M. Veltri
19
Sezione dell’INFN di Firenze, I-50019 Sesto Fiorentino, Italy
M. Calvetti, E. Celeghini, E. Iacopini, G. Ruggiero
11
Dipartimento di Fisica dell’Università e Sezione dell’INFN di Firenze, I-50019 Sesto Fiorentino, Italy
M. Behler, K. Eppard, K. Kleinknecht, P. Marouelli, L. Masetti, U. Moosbrugger,
C. Morales Morales
20
, B. Renk, M. Wache, R. Wanke, A. Winhart
2
Institut für Physik, Universität Mainz, D-55099 Mainz, Germany
21
D. Coward
22
, A. Dabrowski
11
, T. Fonseca Martin, M. Shieh, M. Szleper, M. Velasco,
M.D. Wood
22
Department of Physics and Astronomy, Northwestern University, Evanston, IL 60208, USA
http://dx.doi.org/10.1016/j.physletb.2015.04.068
0370-2693/
© 2015 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by
SCOAP
3
.
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