Search for dark photon decays to μ+μ− at NA62

被引:0
作者
E. Cortina Gil
J. Jerhot
A. Kleimenova
N. Lurkin
M. Zamkovsky
T. Numao
B. Velghe
V. W. S. Wong
D. Bryman
Z. Hives
T. Husek
K. Kampf
M. Koval
B. De Martino
M. Perrin-Terrin
A. T. Akmete
R. Aliberti
L. Di Lella
N. Doble
L. Peruzzo
S. Schuchmann
H. Wahl
R. Wanke
P. Dalpiaz
A. Mazzolari
I. Neri
F. Petrucci
M. Soldani
L. Bandiera
A. Cotta Ramusino
A. Gianoli
M. Romagnoni
A. Sytov
M. Lenti
P. Lo Chiatto
R. Marchevski
I. Panichi
G. Ruggiero
A. Bizzeti
F. Bucci
A. Antonelli
V. Kozhuharov
G. Lanfranchi
S. Martellotti
M. Moulson
T. Spadaro
G. Tinti
F. Ambrosino
M. D’Errico
R. Fiorenza
机构
[1] Université Catholique de Louvain,Institut für Physik and PRISMA Cluster of Excellence
[2] TRIUMF,Instituto de Física
[3] University of British Columbia,Faculty of Mathematics, Physics and Informatics
[4] Charles University,School of Physics and Astronomy
[5] Aix Marseille University,School of Physics
[6] CNRS/IN2P3,School of Physics and Astronomy
[7] CPPM,Faculty of Science and Technology
[8] Universität Mainz,Physics and Astronomy Department
[9] Dipartimento di Fisica e Scienze della Terra dell’Università e INFN,Institut für Kernphysik and Helmholtz Institute Mainz
[10] Sezione di Ferrara,Dipartimento di Scienze Fisiche, Informatiche e Matematiche
[11] INFN,Faculty of Physics
[12] Sezione di Ferrara,Department of Industrial Engineering
[13] Dipartimento di Fisica e Astronomia dell’Università e INFN,Department of Electronic Engineering
[14] Sezione di Firenze,SLAC National Accelerator Laboratory
[15] INFN,undefined
[16] Sezione di Firenze,undefined
[17] Laboratori Nazionali di Frascati,undefined
[18] Dipartimento di Fisica “Ettore Pancini” e INFN,undefined
[19] Sezione di Napoli,undefined
[20] Dipartimento di Fisica e Geologia dell’Università e INFN,undefined
[21] Sezione di Perugia,undefined
[22] INFN,undefined
[23] Sezione di Perugia,undefined
[24] Dipartimento di Fisica dell’Università e INFN,undefined
[25] Sezione di Pisa,undefined
[26] INFN,undefined
[27] Sezione di Pisa,undefined
[28] Scuola Normale Superiore e INFN,undefined
[29] Sezione di Pisa,undefined
[30] Dipartimento di Fisica,undefined
[31] Sapienza Università di Roma e INFN,undefined
[32] Sezione di Roma I,undefined
[33] INFN,undefined
[34] Sezione di Roma I,undefined
[35] INFN,undefined
[36] Sezione di Roma Tor Vergata,undefined
[37] Dipartimento di Fisica dell’Università e INFN,undefined
[38] Sezione di Torino,undefined
[39] INFN,undefined
[40] Sezione di Torino,undefined
[41] Universidad Autónoma de San Luis Potosí,undefined
[42] Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering,undefined
[43] Comenius University,undefined
[44] CERN,undefined
[45] European Organization for Nuclear Research,undefined
[46] University of Birmingham,undefined
[47] University of Bristol,undefined
[48] University of Glasgow,undefined
[49] University of Lancaster,undefined
[50] George Mason University,undefined
来源
Journal of High Energy Physics | / 2023卷
关键词
Beyond Standard Model; Exotics; Fixed Target Experiments; Dark Matter;
D O I
暂无
中图分类号
学科分类号
摘要
The NA62 experiment at CERN, designed to study the ultra-rare decay K+ → π+νν¯\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ \nu \overline{\nu} $$\end{document}, has also collected data in beam-dump mode. In this configuration, dark photons may be produced by protons dumped on an absorber and reach a decay volume beginning 80 m downstream. A search for dark photons decaying in flight to μ+μ− pairs is reported, based on a sample of 1.4 × 1017 protons on dump collected in 2021. No evidence for a dark photon signal is observed. A region of the parameter space is excluded at 90% CL, improving on previous experimental limits for dark photon masses between 215 and 550 MeV/c2.
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