Heavy Majorana neutrino production at electron-muon colliders

G. Cvetič, Choong Sun Kim

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Possibilities for detecting heavy Majorana neutrinos (N''s) at future eμ colliders are investigated. In contrast to the e- e+ colliders (LEP200 and NLC), the center-of-mass (CMS) energies achieved at eμ colliders can be much higher and the Z-mediated s channel is excluded automatically. This opens the attractive possibility of having high production cross sections for N's and at the same time probing only the strength of charged current couplings of N's (NWe and NWμ). The production cross sections and the expected numbers of events for the reaction eμ±→ NN → W±Script l signW±Script l sign′ are calculated for various masses M of the Majorana neutrinos and for the CMS energies √s = 0.5-6.0 TeV. The values of the charged current coupling parameters are set equal to their present upper bounds. We obtain reasonably high production cross sections. Further, the effects of the off-shell intermediate N's turn out to be large and they increase with increasing √s.

Original languageEnglish
Pages (from-to)248-255
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume461
Issue number3
DOIs
Publication statusPublished - 1999 Jan 1

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muons
neutrinos
center of mass
cross sections
electrons
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

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title = "Heavy Majorana neutrino production at electron-muon colliders",
abstract = "Possibilities for detecting heavy Majorana neutrinos (N''s) at future eμ colliders are investigated. In contrast to the e- e+ colliders (LEP200 and NLC), the center-of-mass (CMS) energies achieved at eμ colliders can be much higher and the Z-mediated s channel is excluded automatically. This opens the attractive possibility of having high production cross sections for N's and at the same time probing only the strength of charged current couplings of N's (NWe and NWμ). The production cross sections and the expected numbers of events for the reaction e∓μ±→ NN → W±Script l sign∓W±Script l sign′∓ are calculated for various masses M of the Majorana neutrinos and for the CMS energies √s = 0.5-6.0 TeV. The values of the charged current coupling parameters are set equal to their present upper bounds. We obtain reasonably high production cross sections. Further, the effects of the off-shell intermediate N's turn out to be large and they increase with increasing √s.",
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Heavy Majorana neutrino production at electron-muon colliders. / Cvetič, G.; Kim, Choong Sun.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 461, No. 3, 01.01.1999, p. 248-255.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Heavy Majorana neutrino production at electron-muon colliders

AU - Cvetič, G.

AU - Kim, Choong Sun

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AB - Possibilities for detecting heavy Majorana neutrinos (N''s) at future eμ colliders are investigated. In contrast to the e- e+ colliders (LEP200 and NLC), the center-of-mass (CMS) energies achieved at eμ colliders can be much higher and the Z-mediated s channel is excluded automatically. This opens the attractive possibility of having high production cross sections for N's and at the same time probing only the strength of charged current couplings of N's (NWe and NWμ). The production cross sections and the expected numbers of events for the reaction e∓μ±→ NN → W±Script l sign∓W±Script l sign′∓ are calculated for various masses M of the Majorana neutrinos and for the CMS energies √s = 0.5-6.0 TeV. The values of the charged current coupling parameters are set equal to their present upper bounds. We obtain reasonably high production cross sections. Further, the effects of the off-shell intermediate N's turn out to be large and they increase with increasing √s.

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