On Direct Search for Dark Matter in Scattering Processes within Yukawa Model


  • V.V. Skalozub Oles Honchar Dnipro National University
  • M.S. Dmytriiev Oles Honchar Dnipro National University




dark matter, resonance, narrow-width approximation, mixing of fields


Nowadays, no dark matter candidates have been discovered. We consider two possible reasons for that, both related to the approach of on-peak resonance searching for. As is believed usually, a new particle suits the conditions that the ratio of the width to the mass is less than 1–3% and a narrow-width approximation (NWA) is applicable to identify such type resonant peak in the invariant mass spectrum of the collision products. In the present paper, in the framework of a generalized Yukawa model, we find out the properties of the searched particle, when its width is larger than a maximal one expected during experiments, and, so, this state could be confused with a noise. We also ascertain the values of particle’s parameters, when the NWA is not applicable and estimate the width value, when it happens. These estimations are relevant to interactions between the Standard model and dark matter particles. Such approach is focused on the role of couplings and mass values introduced in the model describing the interaction of visible and dark matters.


Sunghoon Jung, Dongsub Lee, Ke-Pan Xie. Beyond Mtt: learning to search for a broad tt resonance at the LHC.

Eur. Phys. J. C 80, 105 (2020).

S. Moretti, D. O'Brien, L. Panizzi and Hugo Prager. Production of extra quarks decaying to dark matter beyond the narrow width approximation at the LHC. Phys. Rev. D 96 (3), 035033 (2017).


S. Moretti, D. O'Brien, L. Panizzi, H. Prager. Production of extra quarks at the Large Hadron Collider beyond the

narrow width approximation. Phys. Rev. D 96 (7), 075035 (2017).

M. Drees and F. Hajkarim. Neutralino dark matter in scenarios with early matter domination. JHEP 2018, 42 (2018).


A. Gulov, V. Skalozub. Global Search For The Z' Boson In Scattering Processes. (Lira, 2018) [ISBN: 978-966-981-143-1].

P. Langacker. The physics of heavy Z' gauge bosons. ePrint: 0801.1345v3 [hep-ph] (2009).


A. Leike. The phenomenology of extra neutral gauge bosons. e-Print: hep-ph/9805494v1 (1999).

A. Boyarsky, M. Drewes, T. Lasserre, S. Mertens, O. Ruchayskiy. Sterile neutrino dark matter. e-Print: 1807.07938 [hep-ph] (2018).

M. Tanabashi et al. (Particle Data Group). Review of particle physics. Phys. Rev. D 98, 030001 (2018-2019).

Tomohiro Abe, Ryuichiro Kitano, Ryosuke Sato. Discrimination of dark matter models in future experiments. Phys. Rev. D 91 (9), 095004 (2015).


Sunghoon Jung, Jeonghyeon Song, Yeo Woong Yoon. Dip or nothingness of a Higgs resonance from the interference with a complex phase. Phys. Rev. D 92 (5), 055009 (2015).


E. Fuchs, S. Thewes, G. Weiglein. Interference effects in BSM processes with a generalised narrow-width approximation. Eur. Phys. J. C 75, 253 (2015).


T. Hahn, M. Perez-Victoria. Automatized one-loop calculations in 4 and D dimensions. Comput. Phys. Commun 118 (2-3), 153 (1999).





How to Cite

Skalozub, V., & Dmytriiev, M. (2021). On Direct Search for Dark Matter in Scattering Processes within Yukawa Model. Ukrainian Journal of Physics, 66(11), 936. https://doi.org/10.15407/ujpe66.11.936



Fields and elementary particles