Search for production of an invisible dark photon in π 0 decays

The NA62 Collaboration

doi:10.1007/JHEP05(2019)182

Search for production of an invisible dark photon in π ⁰ decays

The NA62 Collaboration

University of Louvain
LNF-INFN
Brookhaven National Laboratory
Institute for Nuclear Research of the Russian Academy of Sciences
Sofia University St. Kliment Ohridski
TRIUMF
University of British Columbia
University of California, Los Angeles
Charles University
University of Valencia
Johannes Gutenberg University
University of Würzburg
Universität Hamburg
Sezione INFN di Ferrara
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
University of Modena and Reggio Emilia
INFN Sezione di Napoli
University of Liverpool
INFN Sezione di Perugia
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
Goethe University Frankfurt am Main
Scuola Normale Superiore di Pisa
University of Rome
Sezione di Roma
University of Rome “Tor Vergata”
INFN Sezione di Torino
Laboratory of Molecular Pathology
European Organization for Nuclear Research
Universidad Autónoma de San Luis Potosi
Universidad de Guanajuato
Horia Hulubei National Institute of Physics and Nuclear Engineering
Joint Institute for Nuclear Research, Dubna
Institute for Nuclear Research and Nuclear Energy Bulgarian Academy of Sciences
National Research Nuclear University MEPhI
Moscow Institute of Physics and Technology
Kurchatov Institute
Comenius University
c/o DESY
Imperial College London
Aix Marseille Université
University of Birmingham
Università di Roma La Sapienza
University of Bristol
University of Glasgow
Lancaster University
George Mason University
Stanford Linear Accelerator Center

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

The results of a search for π⁰ decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 10⁸ tagged π⁰ mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c². The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π→ γνν¯ , improving the current limit by more than three orders of magnitude.

langue originale	Anglais
Numéro d'article	182
journal	Journal of High Energy Physics
Volume	2019
Numéro de publication	5
Les DOIs	https://doi.org/10.1007/JHEP05(2019)182
état	Publié - 1 mai 2019

Accès au document

10.1007/JHEP05(2019)182

Contient cette citation

@article{20799a1eac4a4c49be8fe9b80752cf68,

title = "Search for production of an invisible dark photon in π 0 decays",

abstract = "The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c2. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π→ γνν¯ , improving the current limit by more than three orders of magnitude.",

keywords = "Beyond Standard Model, Exotics, Fixed target experiments, Rare decay",

author = "\{The NA62 Collaboration\} and \{Cortina Gil\}, E. and A. Kleimenova and E. Minucci and S. Padolski and P. Petrov and A. Shaikhiev and R. Volpe and G. Georgiev and V. Kozhuharov and L. Litov and T. Numao and Y. Petrov and B. Velghe and D. Bryman and J. Fu and T. Husek and J. Jerhot and K. Kampf and M. Zamkovsky and R. Aliberti and G. Khoriauli and J. Kunze and D. Lomidze and L. Peruzzo and M. Vormstein and R. Wanke and P. Dalpiaz and M. Fiorini and I. Neri and A. Norton and F. Petrucci and H. Wahl and \{Cotta Ramusino\}, A. and A. Gianoli and E. Iacopini and G. Latino and M. Lenti and A. Parenti and A. Bizzeti and F. Bucci and A. Antonelli and G. Lanfranchi and G. Mannocchi and S. Martellotti and M. Moulson and T. Spadaro and F. Ambrosino and T. Capussela and M. Corvino and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2019, The Author(s).",

year = "2019",

month = may,

day = "1",

doi = "10.1007/JHEP05(2019)182",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

number = "5",

}

TY - JOUR

T1 - Search for production of an invisible dark photon in π 0 decays

AU - The NA62 Collaboration

AU - Cortina Gil, E.

AU - Kleimenova, A.

AU - Minucci, E.

AU - Padolski, S.

AU - Petrov, P.

AU - Shaikhiev, A.

AU - Volpe, R.

AU - Georgiev, G.

AU - Kozhuharov, V.

AU - Litov, L.

AU - Numao, T.

AU - Petrov, Y.

AU - Velghe, B.

AU - Bryman, D.

AU - Fu, J.

AU - Husek, T.

AU - Jerhot, J.

AU - Kampf, K.

AU - Zamkovsky, M.

AU - Aliberti, R.

AU - Khoriauli, G.

AU - Kunze, J.

AU - Lomidze, D.

AU - Peruzzo, L.

AU - Vormstein, M.

AU - Wanke, R.

AU - Dalpiaz, P.

AU - Fiorini, M.

AU - Neri, I.

AU - Norton, A.

AU - Petrucci, F.

AU - Wahl, H.

AU - Cotta Ramusino, A.

AU - Gianoli, A.

AU - Iacopini, E.

AU - Latino, G.

AU - Lenti, M.

AU - Parenti, A.

AU - Bizzeti, A.

AU - Bucci, F.

AU - Antonelli, A.

AU - Lanfranchi, G.

AU - Mannocchi, G.

AU - Martellotti, S.

AU - Moulson, M.

AU - Spadaro, T.

AU - Ambrosino, F.

AU - Capussela, T.

AU - Corvino, M.

AU - Maurice, E.

PY - 2019/5/1

Y1 - 2019/5/1

N2 - The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c2. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π→ γνν¯ , improving the current limit by more than three orders of magnitude.

AB - The results of a search for π0 decays to a photon and an invisible massive dark photon at the NA62 experiment at the CERN SPS are reported. From a total of 4.12 × 108 tagged π0 mesons, no signal is observed. Assuming a kinetic-mixing interaction, limits are set on the dark photon coupling to the ordinary photon as a function of the dark photon mass, improving on previous searches in the mass range 60–110 MeV/c2. The present results are interpreted in terms of an upper limit of the branching ratio of the electro-weak decay π→ γνν¯ , improving the current limit by more than three orders of magnitude.

KW - Beyond Standard Model

KW - Exotics

KW - Fixed target experiments

KW - Rare decay

U2 - 10.1007/JHEP05(2019)182

DO - 10.1007/JHEP05(2019)182

M3 - Article

AN - SCOPUS:85066479984

SN - 1126-6708

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 5

M1 - 182

ER -

Search for production of an invisible dark photon in π 0 decays

Résumé

Accès au document

Empreinte digitale

Contient cette citation

Search for production of an invisible dark photon in π ⁰ decays