Search for dark photon decays to μ$^{+}$μ$^{−}$ at NA62

, 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 × 10

^{17}

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/c

^{2}

.

Beyond Standard Model
Exotics
Fixed Target Experiments
Dark Matter
K+: secondary beam
K+: rare decay
K+: semileptonic decay
neutrino: pair production
pi+
photon: mass

References(24)

Figures(22)

[1]

LIMITS OF ELECTRODYNAMICS: PARAPHOTONS?

L.B. Okun
(
- Moscow, ITEP
)

- Sov.Phys.JETP 56 (1982) 502,
- Zh.Eksp.Teor.Fiz. 83 (1982) 892-898,
- Zh. Eksp. Teor. Fiz. 83 ( 1982) 892-898,
- Moscow Inst. Theor. Exp. Phys. Gkae - ITEF-82-048 (82,REC.MAY) 14 P. (206485

[2]

Two U(1)'s and Epsilon Charge Shifts

Bob Holdom
(
- Toronto U.
)

- Phys.Lett.B 166 (1986) 196-198
•
DOI:
- 10.1016/0370-2693(86)91377-8

[3]

TWO Z's OR NOT TWO Z's?

Peter Galison
(
- Stanford U., Phys. Dept.
)
,
Aneesh Manohar
(
- Harvard U.
)

- Phys.Lett.B 136 (1984) 279-283
•
DOI:
- 10.1016/0370-2693(84)91161-4

Searching for muonphilic dark sectors with proton beams

Claudia Rella
(
- Geneva U.
)
,
Babette Döbrich
(
- CERN and
- Munich, Max Planck Inst.
)
,
Tien-Tien Yu
(
- Oregon U.
)

- Phys.Rev.D 106 (2022) 3, 035023
•
e-Print:
- 2205.09870
•
DOI:
- 10.1103/PhysRevD.106.035023

[5]

Model-independent bounds on light pseudoscalars from rare B-meson decays

Babette Döbrich
(
- CERN
)
,
Fatih Ertas
(
- Aachen, Tech. Hochsch.
)
,
Felix Kahlhoefer
(
- Aachen, Tech. Hochsch.
)
,
Tommaso Spadaro
(
- Frascati
)

- Phys.Lett.B 790 (2019) 537-544
•
e-Print:
- 1810.11336
•
DOI:
- 10.1016/j.physletb.2019.01.064

[6]

Report from the Conventional Beams Working Group to the Physics Beyond Collider Study and to the European Strategy for Particle Physics, CERN-PBC-REPORT--002, CERN, Geneva (2022)

L. Gatignon

Single-muon rate reduction for beam dump operation of the K12 beam line at CERN

et al.

- Int.J.Mod.Phys.A 34 (2019) 36, 1942026
•
DOI:
- 10.1142/S0217751X19420260

The Beam and detector of the NA62 experiment at CERN

NA62

Collaboration

•

Eduardo Cortina Gil
(
- Louvain U.
)

et al.

- JINST 12 (2017) 05, P05025
•
e-Print:
- 1703.08501
•
DOI:
- 10.1088/1748-0221/12/05/P05025

New veto hodoscope ANTI-0 for the NA62 experiment at CERN

H. Danielsson
(
- CERN
)
,
O. Gavrishchuk
(
- Dubna, JINR
)
,
P.A. Giudici
(
- CERN
)
,
E. Goudzovski
(
- Birmingham U.
)
,
S. Kholodenko
(
- Kurchatov Inst., Moscow
)

et al.

- JINST 15 (2020) 07, C07007
•
e-Print:
- 2004.09344
•
DOI:
- 10.1088/1748-0221/15/07/C07007

Performance of the NA62 trigger system

NA62

Collaboration

•

Eduardo Cortina Gil
(
- Louvain U., CP3
)

et al.

- JHEP 03 (2023) 122
•
e-Print:
- 2208.00897
•
DOI:
- 10.1007/JHEP03(2023)122

[11]

The integrated low-level trigger and readout system of the CERN NA62 experiment

et al.

- Nucl.Instrum.Meth.A 929 (2019) 1-22
•
e-Print:
- 1903.10200
•
DOI:
- 10.1016/j.nima.2019.03.012

[12]

Recent developments in Geant4

J. Allison
(
- Geant4 Assoc. and
- Manchester U.
)
,
J. Apostolakis
(
- CERN
)
,
S.B. Lee
(
- Korea Elect. Res. Inst., Changwon
)
,
K. Amako
(
- KEK, Tsukuba and
- Geant4 Assoc.
)
,
S. Chauvie
(
- PRATO, Italy
)

et al.

- Nucl.Instrum.Meth.A 835 (2016) 186-225
•
DOI:
- 10.1016/j.nima.2016.06.125

[13]

New Exclusion Limits on Dark Gauge Forces from Proton Bremsstrahlung in Beam-Dump Data

Johannes Blümlein
(
- DESY, Zeuthen
)
,
Jürgen Brunner
(
- Marseille, CPPM
)

- Phys.Lett.B 731 (2014) 320-326
•
e-Print:
- 1311.3870
•
DOI:
- 10.1016/j.physletb.2014.02.029

[14]

An introduction to PYTHIA 8.2

et al.

- Comput.Phys.Commun. 191 (2015) 159-177
•
e-Print:
- 1410.3012
•
DOI:
- 10.1016/j.cpc.2015.01.024

Light in the beam dump - ALP production from decay photons in proton beam-dumps

- JHEP 05 (2019) 213,
- JHEP 10 (2020) 046 (erratum),
- JHEP05(2019)213
•
e-Print:
- 1904.02091
•
DOI:
- 10.1007/JHEP05(2019)213

[16]

Serendipity in dark photon searches

- JHEP 06 (2018) 004
•
e-Print:
- 1801.04847
•
DOI:
- 10.1007/JHEP06(2018)004

Physics Beyond Colliders at CERN: Beyond the Standard Model Working Group Report

et al.

- J.Phys.G 47 (2020) 1, 010501
•
e-Print:
- 1901.09966
•
DOI:
- 10.1088/1361-6471/ab4cd2

[18]

A biased MC for muon production for beam-dump experiments

Stefan Ghinescu
(
- Bucharest, IFIN-HH
)
,
Babette Döbrich
(
- CERN
)
,
Elisa Minucci
(
- CERN
)
,
Tommaso Spadaro
(
- Frascati
)

- Eur.Phys.J.C 81 (2021) 8, 767
•
e-Print:
- 2106.01932
•
DOI:
- 10.1140/epjc/s10052-021-09541-7

[19]

Backward Monte-Carlo applied to muon transport

Valentin Niess
(
- Clermont-Ferrand U.
)
,
Anne Barnoud
(
- Clermont-Ferrand U.
)
,
Cristina Cârloganu
(
- Clermont-Ferrand U.
)
,
Eve Le Ménédeu
(
- Clermont-Ferrand U.
)

- Comput.Phys.Commun. 229 (2018) 54-67
•
e-Print:
- 1705.05636
•
DOI:
- 10.1016/j.cpc.2018.04.001

Search for hidden-sector bosons in $B^0 \!\to K^{*0}\mu^+\mu^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.Lett. 115 (2015) 16, 161802
•
e-Print:
- 1508.04094
•
DOI:
- 10.1103/PhysRevLett.115.161802

Search for long-lived scalar particles in $B^+ \to K^+ \chi (\mu^+\mu^-)$ decays

LHCb

Collaboration

•

R. Aaij
(
- CERN
)

et al.

- Phys.Rev.D 95 (2017) 7, 071101
•
e-Print:
- 1612.07818
•
DOI:
- 10.1103/PhysRevD.95.071101

Search for Axion Like Particle Production in 400-{GeV} Proton - Copper Interactions

CHARM

Collaboration

•

F. Bergsma
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Lett.B 157 (1985) 458-462
•
DOI:
- 10.1016/0370-2693(85)90400-9

A Search for Decays of Heavy Neutrinos

CHARM

Collaboration

•

F. Bergsma
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Lett.B 128 (1983) 361,
- In *Brighton 1983, Proceedings, High Energy Physics*, 252-255 and CERN Geneva - CERN-EP 83-063 (83,REC.JUN.) 8p,
- CERN Geneva - CERN-EP 83-063 (83,REC.JUN.) 8p,
•
DOI:
- 10.1016/0370-2693(83)90275-7

DOI:
- 10.5281/ZENODO.7963458

Search for dark photon decays to μ+^{+}+μ−^{−}− at NA62

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Search for dark photon decays to μ $^{+}$ μ $^{−}$ at NA62