Abstract
We investigate the pair-production of right-handed neutrinos via the Standard Model (SM) Higgs boson in a gauged B − L model. The right-handed neutrinos with a mass of few tens of GeV generating viable light neutrino masses via the seesaw mechanism naturally exhibit displaced vertices and distinctive signatures at the LHC and proposed lepton colliders. The production rate of the right-handed neutrinos depends on the mixing between the SM Higgs and the exotic Higgs associated with the B − L breaking, whereas their decay length depends on the active-sterile neutrino mixing. We focus on the displaced leptonic final states arising from such a process, and analyze the sensitivity reach of the LHC and proposed lepton colliders in probing the active-sterile neutrino mixing. We show that mixing to muons as small as VμN ≈ 10−7 can be probed at the LHC with 100 fb−1 and at proposed lepton colliders with 5000 fb−1. The future high luminosity run at LHC and the proposed MATHUSLA detector may further improve this reach by an order of magnitude.
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References
R.N. Mohapatra and R.E. Marshak, Local B-L symmetry of electroweak interactions, Majorana neutrinos and neutron oscillations, Phys. Rev. Lett. 44 (1980) 1316 [Erratum ibid. 44 (1980) 1643] [INSPIRE].
P. Fileviez Perez, T. Han and T. Li, Testability of Type I seesaw at the CERN LHC: revealing the existence of the B-L symmetry, Phys. Rev. D 80 (2009) 073015 [arXiv:0907.4186] [INSPIRE].
F.F. Deppisch, N. Desai and J.W.F. Valle, Is charged lepton flavor violation a high energy phenomenon?, Phys. Rev. D 89 (2014) 051302 [arXiv:1308.6789] [INSPIRE].
ATLAS collaboration, Search for new high-mass phenomena in the dilepton final state using 36 fb −1 of proton-proton collision data at \( \sqrt{s}=13 \) TeV with the ATLAS detector, JHEP 10 (2017) 182 [arXiv:1707.02424] [INSPIRE].
B. Batell, M. Pospelov and B. Shuve, Shedding light on neutrino masses with dark forces, JHEP 08 (2016) 052 [arXiv:1604.06099] [INSPIRE].
J. Heeck, Unbroken B-L symmetry, Phys. Lett. B 739 (2014) 256 [arXiv:1408.6845] [INSPIRE].
G. Cacciapaglia, C. Csáki, G. Marandella and A. Strumia, The minimal set of electroweak precision parameters, Phys. Rev. D 74 (2006) 033011 [hep-ph/0604111] [INSPIRE].
SLAC E158 collaboration, P.L. Anthony et al., Observation of parity nonconservation in Moller scattering, Phys. Rev. Lett. 92 (2004) 181602 [hep-ex/0312035] [INSPIRE].
SLD Electroweak Group, SLD Heavy Flavor Group, DELPHI, LEP, ALEPH, OPAL, LEP Electroweak Working Group, L3 collaboration, A combination of preliminary electroweak measurements and constraints on the standard model, hep-ex/0312023 [INSPIRE].
M. Carena, A. Daleo, B.A. Dobrescu and T.M.P. Tait, Z′ gauge bosons at the Tevatron, Phys. Rev. D 70 (2004) 093009 [hep-ph/0408098] [INSPIRE].
S. Antusch, E. Cazzato and O. Fischer, Heavy neutrino-antineutrino oscillations at colliders, arXiv:1709.03797 [INSPIRE].
CMS collaboration, Search for long-lived particles that decay into final states containing two electrons or two muons in proton-proton collisions at \( \sqrt{s}=8 \) TeV, Phys. Rev. D 91 (2015) 052012 [arXiv:1411.6977].
CMS collaboration, Search for long-lived particles that decay into final states containing two muons, reconstructed using only the CMS muon chambers, CMS-PAS-EXO-14-012 (2014).
CMS Collaboration, Search for long-lived particles decaying to final states that include dileptons, CMS-PAS-EXO-12-037 (2012).
CMS collaboration, Search for heavy Majorana neutrinos in μ ± μ ±+ jets events in proton-proton collisions at \( \sqrt{s}=8 \) TeV, Phys. Lett. B 748 (2015) 144 [arXiv:1501.05566] [INSPIRE].
CMS collaboration, Search for heavy neutral leptons in events with three charged leptons in proton-proton collisions at \( \sqrt{s}=13 \) TeV, Phys. Rev. Lett. 120 (2018) 221801 [arXiv:1802.02965] [INSPIRE].
E. Izaguirre and B. Shuve, Multilepton and lepton jet probes of sub-weak-scale right-handed neutrinos, Phys. Rev. D 91 (2015) 093010 [arXiv:1504.02470] [INSPIRE].
S. Antusch, E. Cazzato and O. Fischer, Sterile neutrino searches via displaced vertices at LHCb, Phys. Lett. B 774 (2017) 114 [arXiv:1706.05990] [INSPIRE].
R. E. Shrock and M. Suzuki, Invisible decays of Higgs bosons, Phys. Lett. B 110 (1982) 250.
A. Maiezza, M. Nemevšek and F. Nesti, Lepton number violation in Higgs decay at LHC, Phys. Rev. Lett. 115 (2015) 081802 [arXiv:1503.06834] [INSPIRE].
P.S.B. Dev, R.N. Mohapatra and Y. Zhang, Long lived light scalars as probe of low scale seesaw models, Nucl. Phys. B 923 (2017) 179 [arXiv:1703.02471] [INSPIRE].
A. Caputo, P. Hernández, J. Lopez-Pavon and J. Salvado, The seesaw portal in testable models of neutrino masses, JHEP 06 (2017) 112 [arXiv:1704.08721] [INSPIRE].
E. Accomando et al., Novel SM-like Higgs decay into displaced heavy neutrino pairs in U(1)′ models, JHEP 04 (2017) 081 [arXiv:1612.05977] [INSPIRE].
A. Das, P.S.B. Dev and C.S. Kim, Constraining sterile neutrinos from precision Higgs data, Phys. Rev. D 95 (2017) 115013 [arXiv:1704.00880] [INSPIRE].
M. Nemevšek, F. Nesti and J.C. Vasquez, Majorana Higgses at colliders, JHEP 04 (2017) 114 [arXiv:1612.06840] [INSPIRE].
S. Antusch, E. Cazzato and O. Fischer, Displaced vertex searches for sterile neutrinos at future lepton colliders, JHEP 12 (2016) 007 [arXiv:1604.02420] [INSPIRE].
S. Antusch, E. Cazzato and O. Fischer, Sterile neutrino searches at future e − e + , pp and e − p colliders, Int. J. Mod. Phys. A 32 (2017) 1750078 [arXiv:1612.02728] [INSPIRE].
G. Cottin, J.C. Helo and M. Hirsch, Searches for light sterile neutrinos with multitrack displaced vertices, Phys. Rev. D 97 (2018) 055025 [arXiv:1801.02734] [INSPIRE].
J.C. Helo, M. Hirsch and Z.S. Wang, Heavy neutral fermions at the high-luminosity LHC, JHEP 07 (2018) 056 [arXiv:1803.02212] [INSPIRE].
S. Mandal, M. Mitra and N. Sinha, Constraining the right-handed gauge boson mass from lepton number violating meson decays in a low scale left-right model, Phys. Rev. D 96 (2017) 035023 [arXiv:1705.01932] [INSPIRE].
M. Nemevšek, F. Nesti and G. Popara, Keung-Senjanović process at the LHC: from lepton number violation to displaced vertices to invisible decays, Phys. Rev. D 97 (2018) 115018 [arXiv:1801.05813] [INSPIRE].
M. Lindner, M. Platscher and F.S. Queiroz, A call for new physics: the muon anomalous magnetic moment and lepton flavor violation, Phys. Rept. 731 (2018) 1 [arXiv:1610.06587] [INSPIRE].
Y. Cai, T. Han, T. Li and R. Ruiz, Lepton number violation: seesaw models and their collider tests, Front. in Phys. 6 (2018) 40 [arXiv:1711.02180] [INSPIRE].
J.P. Chou, D. Curtin and H.J. Lubatti, New detectors to explore the lifetime frontier, Phys. Lett. B 767 (2017) 29 [arXiv:1606.06298] [INSPIRE].
T. Robens and T. Stefaniak, Status of the Higgs singlet extension of the standard model after LHC Run 1, Eur. Phys. J. C 75 (2015) 104 [arXiv:1501.02234] [INSPIRE].
Planck collaboration, P.A.R. Ade et al., Planck 2015 results. XIII. Cosmological parameters, Astron. Astrophys. 594 (2016) A13 [arXiv:1502.01589] [INSPIRE].
F.F. Deppisch, P.S. Bhupal Dev and A. Pilaftsis, Neutrinos and collider physics, New J. Phys. 17 (2015) 075019 [arXiv:1502.06541] [INSPIRE].
P.S. Bhupal Dev and A. Pilaftsis, Light and superlight sterile neutrinos in the minimal radiative inverse seesaw model, Phys. Rev. D 87 (2013) 053007 [arXiv:1212.3808] [INSPIRE].
G.M. Pruna, Phenomenology of the minimal B − L model: the Higgs sector at the Large Hadron Collider and future Linear Colliders, arXiv:1106.4691 [INSPIRE].
CMS collaboration, Properties of the Higgs-like boson in the decay H → ZZ → 4l in pp collisions at \( \sqrt{s}=7 \) and 8 TeV, CMS-PAS-HIG-13-002 (2013).
CMS collaboration, Precise determination of the mass of the Higgs boson and tests of compatibility of its couplings with the standard model predictions using proton collisions at 7 and 8 TeV, Eur. Phys. J. C 75 (2015) 212 [arXiv:1412.8662] [INSPIRE].
S. Banerjee, M. Mitra and M. Spannowsky, Searching for a Heavy Higgs boson in a Higgs-portal B-L Model, Phys. Rev. D 92 (2015) 055013 [arXiv:1506.06415] [INSPIRE].
D. López-Val and T. Robens, Δr and the W-boson mass in the singlet extension of the standard model, Phys. Rev. D 90 (2014) 114018 [arXiv:1406.1043] [INSPIRE].
J. Alwall et al., The automated computation of tree-level and next-to-leading order differential cross sections and their matching to parton shower simulations, JHEP 07 (2014) 079 [arXiv:1405.0301] [INSPIRE].
ATLAS collaboration, Search for a light Higgs boson decaying to long-lived weakly-interacting particles in proton-proton collisions at \( \sqrt{s}=7 \) TeV with the ATLAS detector, Phys. Rev. Lett. 108 (2012) 251801 [arXiv:1203.1303] [INSPIRE].
H. Abramowicz et al., The International Linear Collider Technical Design Report - Volume 4: Detectors, arXiv:1306.6329 [INSPIRE].
H. Aihara et al., SiD letter of intent, arXiv:0911.0006 [INSPIRE].
CEPC-SPPC study group, CEPC-SPPC preliminary conceptual design report. 1. Physics and Detector, IHEP-CEPC-DR-2015-01 (2015) [IHEP-TH-2015-01] [IHEP-EP-2015-01].
ATLAS collaboration, Search for long-lived, heavy particles in final states with a muon and multi-track displaced vertex in proton-proton collisions at \( \sqrt{s}=7 \) TeV with the ATLAS detector, Phys. Lett. B 719 (2013) 280 [arXiv:1210.7451] [INSPIRE].
LHCb collaboration, Search for massive long-lived particles decaying semileptonically in the LHCb detector, Eur. Phys. J. C 77 (2017) 224 [arXiv:1612.00945] [INSPIRE].
LHCb collaboration, Search for dark photons produced in 13 TeV pp collisions, Phys. Rev. Lett. 120 (2018) 061801 [arXiv:1710.02867] [INSPIRE].
A. Alloul et al., FeynRules 2.0 — A complete toolbox for tree-level phenomenology, Comput. Phys. Commun. 185 (2014) 2250 [arXiv:1310.1921] [INSPIRE].
L. Basso et al., Phenomenology of the minimal B-L extension of the Standard model: Z′ and neutrinos, Phys. Rev. D 80 (2009) 055030 [arXiv:0812.4313] [INSPIRE].
C. Degrande et al., UFO - The Universal FeynRules Output, Comput. Phys. Commun. 183 (2012) 1201 [arXiv:1108.2040] [INSPIRE].
CMS collaboration, The CMS experiment at the CERN LHC, 2008 JINST 3 S08004 [INSPIRE].
Particle Data Group collaboration, K.A. Olive et al., Review of particle physics, Chin. Phys. C 38 (2014) 090001 [INSPIRE].
J. Gu, H. Li, Z. Liu, S. Su and W. Su, Learning from Higgs physics at future Higgs factories, JHEP 12 (2017) 153 [arXiv:1709.06103] [INSPIRE].
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Deppisch, F.F., Liu, W. & Mitra, M. Long-lived heavy neutrinos from Higgs decays. J. High Energ. Phys. 2018, 181 (2018). https://doi.org/10.1007/JHEP08(2018)181
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DOI: https://doi.org/10.1007/JHEP08(2018)181