Abstract
We investigate rare decays of Higgs via exchange of two almost degenerate heavy on-shell Majorana neutrinos Nj (j = 1, 2): Γ± = Γ(h → νk Nj → νk ℓ±π∓), and into the open quark channels Γ± = Γ(h → νk Nj → νk ℓ±UD), where UD are two jets of open quarks (\( \overline{U}D \), or \( U\overline{D} \), where U = u, c and D = d, s). The related CP violation asymmetry ACP = (Γ− − Γ+)/(Γ− + Γ+) is studied in detail. We take into account the N1-N2 overlap and oscillation effects. We can see that for certain, presently acceptable, range of input parameters, such decays with open quark channels, and their asymmetries, could be detected in the International Linear Collider (ILC).
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
ATLAS collaboration, Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC, Phys. Lett. B 716 (2012) 1 [arXiv:1207.7214] [INSPIRE].
CMS collaboration, Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC, Phys. Lett. B 716 (2012) 30 [arXiv:1207.7235] [INSPIRE].
Super-Kamiokande collaboration, Evidence for oscillation of atmospheric neutrinos, Phys. Rev. Lett. 81 (1998) 1562 [hep-ex/9807003] [INSPIRE].
KamLAND collaboration, First results from KamLAND: evidence for reactor anti-neutrino disappearance, Phys. Rev. Lett. 90 (2003) 021802 [hep-ex/0212021] [INSPIRE].
R. N. Mohapatra et al., Theory of neutrinos: a white paper, Rept. Prog. Phys. 70 (2007) 1757 [hep-ph/0510213] [INSPIRE].
R. N. Mohapatra and A. Y. Smirnov, Neutrino mass and new physics, Ann. Rev. Nucl. Part. Sci. 56 (2006) 569 [hep-ph/0603118] [INSPIRE].
D. Milanes, N. Quintero and C. E. Vera, Sensitivity to Majorana neutrinos in ∆L = 2 decays of Bc meson at LHCb, Phys. Rev. D 93 (2016) 094026 [arXiv:1604.03177] [INSPIRE].
S. Tapia, M. Vidal-Bravo and J. Zamora-Saá, Discovering heavy neutrino oscillations in rare \( {B}_c^{\pm } \) meson decays at HL-LHCb, Phys. Rev. D 105 (2022) 035003 [arXiv:2109.06027] [INSPIRE].
A. Das, S. Jana, S. Mandal and S. Nandi, Probing right handed neutrinos at the LHeC and lepton colliders using fat jet signatures, Phys. Rev. D 99 (2019) 055030 [arXiv:1811.04291] [INSPIRE].
A. Das and N. Okada, Bounds on heavy Majorana neutrinos in type-I seesaw and implications for collider searches, Phys. Lett. B 774 (2017) 32 [arXiv:1702.04668] [INSPIRE].
A. Das and N. Okada, Inverse seesaw neutrino signatures at the LHC and ILC, Phys. Rev. D 88 (2013) 113001 [arXiv:1207.3734] [INSPIRE].
S. Antusch, E. Cazzato and O. Fischer, Resolvable heavy neutrino-antineutrino oscillations at colliders, Mod. Phys. Lett. A 34 (2019) 1950061 [arXiv:1709.03797] [INSPIRE].
A. Das, Y. Gao and T. Kamon, Heavy neutrino search via semileptonic Higgs decay at the LHC, Eur. Phys. J. C 79 (2019) 424 [arXiv:1704.00881] [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].
S. Chakraborty, M. Mitra and S. Shil, Fat jet signature of a heavy neutrino at lepton collider, Phys. Rev. D 100 (2019) 015012 [arXiv:1810.08970] [INSPIRE].
G. Cvetič and C. S. Kim, Sensitivity bounds on heavy neutrino mixing |UμN|2 and |UτN|2 from LHCb upgrade, Phys. Rev. D 100 (2019) 015014 [arXiv:1904.12858] [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, Displaced vertices as probes of sterile neutrino mixing at the LHC, Phys. Rev. D 98 (2018) 035012 [arXiv:1806.05191] [INSPIRE].
L. Duarte, G. Zapata and O. A. Sampayo, Final taus and initial state polarization signatures from effective interactions of Majorana neutrinos at future e+ e− colliders, Eur. Phys. J. C 79 (2019) 240 [arXiv:1812.01154] [INSPIRE].
M. Drewes and J. Hajer, Heavy neutrinos in displaced vertex searches at the LHC and HL-LHC, JHEP 02 (2020) 070 [arXiv:1903.06100] [INSPIRE].
G. Cvetič, A. Das and J. Zamora-Saá, Probing heavy neutrino oscillations in rare W boson decays, J. Phys. G 46 (2019) 075002 [arXiv:1805.00070] [INSPIRE].
G. Cvetič, A. Das, S. Tapia and J. Zamora-Saá, Measuring the heavy neutrino oscillations in rare W boson decays at the Large Hadron Collider, J. Phys. G 47 (2020) 015001 [arXiv:1905.03097] [INSPIRE].
A. Das, Searching for the minimal seesaw models at the LHC and beyond, Adv. High Energy Phys. 2018 (2018) 9785318 [arXiv:1803.10940] [INSPIRE].
A. Das, P. Konar and S. Majhi, Production of heavy neutrino in next-to-leading order QCD at the LHC and beyond, JHEP 06 (2016) 019 [arXiv:1604.00608] [INSPIRE].
A. Das, P. S. B. Dev and R. N. Mohapatra, Same sign versus opposite sign dileptons as a probe of low scale seesaw mechanisms, Phys. Rev. D 97 (2018) 015018 [arXiv:1709.06553] [INSPIRE].
C. Dib, V. Gribanov, S. Kovalenko and I. Schmidt, K meson neutrinoless double muon decay as a probe of neutrino masses and mixings, Phys. Lett. B 493 (2000) 82 [hep-ph/0006277] [INSPIRE].
G. Cvetič, C. Dib and C. S. Kim, Probing Majorana neutrinos in rare π+ → e+ e+ μ− ν decays, JHEP 06 (2012) 149 [arXiv:1203.0573] [INSPIRE].
G. Cvetič, C. S. Kim and J. Zamora-Saá, CP violations in π± meson decay, J. Phys. G 41 (2014) 075004 [arXiv:1311.7554] [INSPIRE].
G. Cvetič, C. S. Kim and J. Zamora-Saá, CP violation in lepton number violating semihadronic decays of K, D, Ds, B, Bc, Phys. Rev. D 89 (2014) 093012 [arXiv:1403.2555] [INSPIRE].
G. Cvetič, C. Dib, C. S. Kim and J. Zamora-Saá, Probing the Majorana neutrinos and their CP-violation in decays of charged scalar mesons π, K, D, Ds, B, Bc, Symmetry 7 (2015) 726 [arXiv:1503.01358] [INSPIRE].
G. Cvetič, C. S. Kim, S. Mendizabal and J. Zamora-Saá, Exploring CP-violation, via heavy neutrino oscillations, in rare B meson decays at Belle II, Eur. Phys. J. C 80 (2020) 1052 [arXiv:2007.04115] [INSPIRE].
G. Cvetič, C. S. Kim, R. Kögerler and J. Zamora-Saá, Oscillation of heavy sterile neutrino in decay of B → μeπ, Phys. Rev. D 92 (2015) 013015 [arXiv:1505.04749] [INSPIRE].
G. Moreno and J. Zamora-Saá, Rare meson decays with three pairs of quasi-degenerate heavy neutrinos, Phys. Rev. D 94 (2016) 093005 [arXiv:1606.08820] [INSPIRE].
D. Milanés and N. Quintero, Search for lepton-number-violating signals in the charm sector, Phys. Rev. D 98 (2018) 096004 [arXiv:1808.06017] [INSPIRE].
J. Mejia-Guisao, D. Milanés, N. Quintero and J. D. Ruiz-Alvarez, Lepton number violation in Bs meson decays induced by an on-shell Majorana neutrino, Phys. Rev. D 97 (2018) 075018 [arXiv:1708.01516] [INSPIRE].
J. Zamora-Saá, Resonant CP violation in rare τ ± decays, JHEP 05 (2017) 110 [arXiv:1612.07656] [INSPIRE].
S. Tapia and J. Zamora-Saá, Exploring CP-violating heavy neutrino oscillations in rare tau decays at Belle II, Nucl. Phys. B 952 (2020) 114936 [arXiv:1906.09470] [INSPIRE].
C. S. Kim, G. López Castro and D. Sahoo, Discovering intermediate mass sterile neutrinos through τ − → π− μ− e+ ν (or \( \overline{v} \)) decay, Phys. Rev. D 96 (2017) 075016 [arXiv:1708.00802] [INSPIRE].
C. O. Dib, J. C. Helo, M. Nayak, N. A. Neill, A. Soffer and J. Zamora-Saá, Searching for a sterile neutrino that mixes predominantly with ντ at B factories, Phys. Rev. D 101 (2020) 093003 [arXiv:1908.09719] [INSPIRE].
T. Asaka, S. Blanchet and M. Shaposhnikov, The νMSM, dark matter and neutrino masses, Phys. Lett. B 631 (2005) 151 [hep-ph/0503065] [INSPIRE].
T. Asaka and M. Shaposhnikov, The νMSM, dark matter and baryon asymmetry of the universe, Phys. Lett. B 620 (2005) 17 [hep-ph/0505013] [INSPIRE].
E. K. Akhmedov, V. A. Rubakov and A. Y. Smirnov, Baryogenesis via neutrino oscillations, Phys. Rev. Lett. 81 (1998) 1359 [hep-ph/9803255] [INSPIRE].
A. D. Sakharov, Violation of CP invariance, C asymmetry, and baryon asymmetry of the universe, Pisma Zh. Eksp. Teor. Fiz. 5 (1967) 32 [JETP Lett. 5 (1967) 24] [Sov. Phys. Usp. 34 (1991) 392] [Usp. Fiz. Nauk 161 (1991) 61] [INSPIRE].
Daya Bay collaboration, Observation of electron-antineutrino disappearance at Daya Bay, Phys. Rev. Lett. 108 (2012) 171803 [arXiv:1203.1669] [INSPIRE].
T2K collaboration, Search for CP-violation in neutrino and antineutrino oscillations by the T2K experiment with 2.2 × 1021 protons on target, Phys. Rev. Lett. 121 (2018) 171802 [arXiv:1807.07891] [INSPIRE].
E. J. Chun et al., Probing leptogenesis, Int. J. Mod. Phys. A 33 (2018) 1842005 [arXiv:1711.02865] [INSPIRE].
M. Drewes, B. Garbrecht, D. Gueter and J. Klarić, Leptogenesis from oscillations of heavy neutrinos with large mixing angles, JHEP 12 (2016) 150 [arXiv:1606.06690] [INSPIRE].
J. F. Gunion, H. E. Haber, G. L. Kane and S. Dawson, The Higgs hunter’s guide, Front. Phys. 80 (2000) 1 [INSPIRE].
A. Atre, T. Han, S. Pascoli and B. Zhang, The search for heavy Majorana neutrinos, JHEP 05 (2009) 030 [arXiv:0901.3589] [INSPIRE].
A. G. Cohen, S. L. Glashow and Z. Ligeti, Disentangling neutrino oscillations, Phys. Lett. B 678 (2009) 191 [arXiv:0810.4602] [INSPIRE].
G. Cvetič and C. S. Kim, Sensitivity limits on heavy-light mixing |UμN|2 from lepton number violating B meson decays, Phys. Rev. D 96 (2017) 035025 [Erratum ibid. 102 (2020) 019903] [Erratum ibid. 102 (2020) 039902] [arXiv:1705.09403] [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].
T. Sjöstrand, S. Mrenna and P. Z. Skands, A brief introduction to PYTHIA 8.1, Comput. Phys. Commun. 178 (2008) 852 [arXiv:0710.3820] [INSPIRE].
DELPHES collaboration, DELPHES 3, a modular framework for fast simulation of a generic collider experiment, JHEP 02 (2014) 057 [arXiv:1307.6346] [INSPIRE].
V. I. Telnov, A high-luminosity superconducting twin e+ e− linear collider with energy recovery, 2021 JINST 16 P12025 [arXiv:2105.11015] [INSPIRE].
D. M. Asner et al., ILC Higgs white paper, in Community summer study 2013: Snowmass on the Mississippi, (2013) [arXiv:1310.0763] [INSPIRE].
H. Yamamoto, The International Linear Collider project — its physics and status, Symmetry 13 (2021) 674 [INSPIRE].
CMS collaboration, Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state, Phys. Rev. D 99 (2019) 112003 [arXiv:1901.00174] [INSPIRE].
V. Gribanov, S. Kovalenko and I. Schmidt, Sterile neutrinos in tau lepton decays, Nucl. Phys. B 607 (2001) 355 [hep-ph/0102155] [INSPIRE].
J. C. Helo, S. Kovalenko and I. Schmidt, Sterile neutrinos in lepton number and lepton flavor violating decays, Nucl. Phys. B 853 (2011) 80 [arXiv:1005.1607] [INSPIRE].
DELPHI collaboration, Search for neutral heavy leptons produced in Z decays, Z. Phys. C 74 (1997) 57 [Erratum ibid. 75 (1997) 580] [INSPIRE].
Author information
Authors and Affiliations
Corresponding author
Additional information
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
ArXiv ePrint: 2110.08799v2
Rights and permissions
Open Access . This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
About this article
Cite this article
Cvetič, G., Kim, C.S. & Zamora-Saá, J. CP violation in the rare Higgs decays via exchange of on-shell almost degenerate Majorana neutrinos, \( H\to {v}_k{N}_j\to {v}_k{\mathrm{\ell}}^{-}U\overline{D} \) and \( H\to {v}_k{N}_j\to {v}_k{\mathrm{\ell}}^{+}\overline{U}D \). J. High Energ. Phys. 2022, 168 (2022). https://doi.org/10.1007/JHEP02(2022)168
Received:
Revised:
Accepted:
Published:
DOI: https://doi.org/10.1007/JHEP02(2022)168