Search for a heavy neutral lepton that mixes predominantly with the tau neutrino - INSPIRE

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Search for a heavy neutral lepton that mixes predominantly with the tau neutrino

Belle

Collaboration

•

M. Nayak

Feb 4, 2024

10 pages

Published in:

Phys.Rev.D 109 (2024) 11, 11

Published: Jun 1, 2024

e-Print:

2402.02580 [hep-ex]

DOI:

10.1103/PhysRevD.109.L111102 (publication)

Report number:

Belle Preprint 2023-22,
KEK Preprint 2023-44

Experiments:

KEK-BF-BELLE

View in:

ADS Abstract Service

reference search9 citations

Citations per year

Abstract: (APS)

We report a search for a heavy neutral lepton (HNL) that mixes predominantly with

ν_{τ}

. The search utilizes data collected with the Belle detector at the KEKB asymmetric energy

e^{+} e^{-}

collider. The data sample was collected at and just below the center-of-mass energies of the

ϒ (4 S)

and

ϒ (5 S)

resonances and has an integrated luminosity of

915 {fb}^{- 1}

, corresponding to

(836 \pm 12) \times 10^{6}

e^{+} e^{-} \to τ^{+} τ^{-}

events. We search for production of the HNL (denoted

N

) in the decay

τ^{-} \to π^{-} N

followed by its decay via

N \to μ^{+} μ^{-} ν_{τ}

. The search focuses on the parameter-space region in which the HNL is long-lived, so that the

μ^{+} μ^{-}

originate from a common vertex that is significantly displaced from the collision point of the KEKB beams. Consistent with the expected background yield, one event is observed in the data sample after application of all the event-selection criteria. We report limits on the mixing parameter of the HNL with the

τ

neutrino as a function of the HNL mass.

Note:

10 pages, 5 figures

electron positron: annihilation
electron positron: colliding beams
lepton: heavy
neutrino: heavy
tau: pair production
tau: decay modes
neutrino: leptonic decay
muon: pair production
neutrino/tau: particle identification
energy: asymmetry

References(66)

Figures(6)

[1]

Review of Particle Physics

R.L. Workman
(
- George Washington U.
)
,
V.D. Burkert
(
- Jefferson Lab
)
,
V. Crede
(
- Florida State U.
)
,
E. Klempt
(
- Bonn U., HISKP
)
,
U. Thoma
(
- Bonn U., HISKP
)

et al.

- PTEP 2022 (2022) 083C01
•
DOI:
- 10.1093/ptep/ptac097

[2]

$\mu \to e\gamma$ at a Rate of One Out of $10^{9}$ Muon Decays?

Peter Minkowski
(
- Bern U.
)

- Phys.Lett.B 67 (1977) 421-428
•
DOI:
- 10.1016/0370-2693(77)90435-X

[3]

T. Yanagida

- Conf. Proc. C 7902131 (1979) 95

[4]

The Future of Elementary Particle Physics

S.L. Glashow
(
- Harvard U.
)

- NATO Sci.Ser.B 61 (1980) 687,
- Cargese Summer Inst.1979:0687
•
DOI:
- 10.1007/978-1-4684-7197-7_15

[5]

M. Gell-Mann
,
P. Ramond
,
R. Slansky

- Conf. Proc. C 790927 (1979) 315

[6]

Neutrino Mass and Spontaneous Parity Nonconservation

- Phys.Rev.Lett. 44 (1980) 912,
•
DOI:
- 10.1103/PhysRevLett.44.912

[7]

Neutrino Masses in SU(2) x U(1) Theories

J. Schechter
(
- Syracuse U.
)
,
J.W.F. Valle
(
- Syracuse U.
)

- Phys.Rev.D 22 (1980) 2227
•
DOI:
- 10.1103/PhysRevD.22.2227

[8]

Neutrino Decay and Spontaneous Violation of Lepton Number

J. Schechter
(
- Syracuse U.
)
,
J.W.F. Valle
(
- Syracuse U.
)

- Phys.Rev.D 25 (1982) 774
•
DOI:
- 10.1103/PhysRevD.25.774

[9]

Leptogenesis

Sacha Davidson
(
- Lyon, IPN
)
,
Enrico Nardi
(
- Frascati and
- Antioquia U.
)
,
Yosef Nir
(
- Weizmann Inst.
)

- Phys.Rept. 466 (2008) 105-177
•
e-Print:
- 0802.2962
•
DOI:
- 10.1016/j.physrep.2008.06.002

[10]

The Little Review on Leptogenesis

Apostolos Pilaftsis
(
- Manchester U.
)

- J.Phys.Conf.Ser. 171 (2009) 012017
•
e-Print:
- 0904.1182
•
DOI:
- 10.1088/1742-6596/171/1/012017

[11]

Baryogenesis

Mikhail Shaposhnikov
(
- LPHE, Lausanne
)

- J.Phys.Conf.Ser. 171 (2009) 012005
•
DOI:
- 10.1088/1742-6596/171/1/012005

[12]

The nuMSM, dark matter and neutrino masses

Takehiko Asaka
(
- IPT, Lausanne
)
,
Steve Blanchet
(
- IPT, Lausanne
)
,
Mikhail Shaposhnikov
(
- IPT, Lausanne
)

- Phys.Lett.B 631 (2005) 151-156
•
e-Print:
- hep-ph/0503065
•
DOI:
- 10.1016/j.physletb.2005.09.070

[13]

The $\nu$ MSM, dark matter and baryon asymmetry of the universe

Takehiko Asaka
(
- IPT, Lausanne
)
,
Mikhail Shaposhnikov
(
- IPT, Lausanne
)

- Phys.Lett.B 620 (2005) 17-26
•
e-Print:
- hep-ph/0505013
•
DOI:
- 10.1016/j.physletb.2005.06.020

[14]

The Role of sterile neutrinos in cosmology and astrophysics

Alexey Boyarsky
(
- BITP, Kiev and
- Zurich, ETH
)
,
Oleg Ruchayskiy
(
- IPT, Lausanne
)
,
Mikhail Shaposhnikov
(
- IPT, Lausanne
)

- Ann.Rev.Nucl.Part.Sci. 59 (2009) 191-214
•
e-Print:
- 0901.0011
•
DOI:
- 10.1146/annurev.nucl.010909.083654

[15]

Sterile neutrino Dark Matter

A. Boyarsky
(
- Leiden U.
)
,
M. Drewes
(
- Louvain U., CP3 and
- Munich, Tech. U., Universe
)
,
T. Lasserre
(
- IRFU, Saclay and
- TUM-IAS, Munich and
- Munich, Tech. U. and
- APC, Paris
)
,
S. Mertens
(
- Munich, Tech. U. and
- Munich, Max Planck Inst.
)
,
O. Ruchayskiy
(
- LBL, Berkeley
)

- Prog.Part.Nucl.Phys. 104 (2019) 1-45
•
e-Print:
- 1807.07938
•
DOI:
- 10.1016/j.ppnp.2018.07.004

[16]

Sterile neutrino dark matter via coinciding resonances

J. Ghiglieri
(
- SUBATECH, Nantes
)
,
M. Laine
(
- U. Bern, AEC
)

- JCAP 07 (2020) 012
•
e-Print:
- 2004.10766
•
DOI:
- 10.1088/1475-7516/2020/07/012

[17]

Search for Heavy Neutral Leptons in Decays of $W$ Bosons Using a Dilepton Displaced Vertex in $\sqrt{s} = 13 TeV$ $p p$ Collisions with the ATLAS Detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- Phys.Rev.Lett. 131 (2023) 6, 061803
•
e-Print:
- 2204.11988
•
DOI:
- 10.1103/PhysRevLett.131.061803

[18]

Search for long-lived heavy neutral leptons with displaced vertices in proton-proton collisions at $\sqrt{\mathrm{s}}$ =13 TeV

CMS

Collaboration

•

Armen Tumasyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 07 (2022) 081
•
e-Print:
- 2201.05578
•
DOI:
- 10.1007/JHEP07(2022)081

[19]

Search for a right-handed W boson and a heavy neutrino in proton-proton collisions at $\sqrt{s}$ = 13 TeV

CMS

Collaboration

•

Armen Tumasyan
(
- Yerevan Phys. Inst.
)

et al.

- JHEP 04 (2022) 047
•
e-Print:
- 2112.03949
•
DOI:
- 10.1007/JHEP04(2022)047

[20]

Search for heavy neutral leptons in $W^+\to\mu^{+}\mu^{\pm}\text{jet}$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Eur.Phys.J.C 81 (2021) 3, 248
•
e-Print:
- 2011.05263
•
DOI:
- 10.1140/epjc/s10052-021-08973-5

[21]

Search for heavy neutral leptons in decays of $W$ bosons produced in 13 TeV $pp$ collisions using prompt and displaced signatures with the ATLAS detector

ATLAS

Collaboration

•

Georges Aad
(
- Marseille, CPPM
)

et al.

- JHEP 10 (2019) 265
•
e-Print:
- 1905.09787
•
DOI:
- 10.1007/JHEP10(2019)265

[22]

Search for Majorana neutrinos in $B^- \to \pi^+\mu^-\mu^-$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 112 (2014) 13, 131802
•
e-Print:
- 1401.5361
•
DOI:
- 10.1103/PhysRevLett.112.131802

[23]

Search for heavy neutrinos at Belle

Belle

Collaboration

•

D. Liventsev
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.D 87 (2013) 7, 071102,
- Phys.Rev.D 95 (2017) 9, 099903 (erratum)
•
e-Print:
- 1301.1105
•
DOI:
- 10.1103/PhysRevD.87.071102

[23]

Search for heavy neutrinos at Belle

Belle

Collaboration

•

D. Liventsev
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.D 87 (2013) 7, 071102,
- Phys.Rev.D 95 (2017) 9, 099903 (erratum)
•
e-Print:
- 1301.1105
•
DOI:
- 10.1103/PhysRevD.87.071102

[24]

Search for a Heavy Neutrino in $τ$ Decays at Belle

Belle

Collaboration

•

D. Liventsev

et al.

- Phys.Rev.Lett. 131 (2023) 21, 211802
•
e-Print:
- 2212.10095
•
DOI:
- 10.1103/PhysRevLett.131.211802

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