Effects of heavy Majorana neutrinos at lepton-proton colliders

• Published in: arXiv.org
• Main Authors: Ali, A, Borisov, A V, Zhuridov, D V
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 01.12.2005
• Subjects: Leptons; Neutrinos
• ISSN: 2331-8422
• DOI: 10.48550/arxiv.0512005

We discuss the prospects of detecting the processes \(e^+p\to\bar\nu_e\ell^+\ell'^+X\) and \(\nu_ep\to e\ell^+\ell'^+X\) (\(\ell,\ell'=e,\mu,\tau\)) under the conditions of the present \(ep\) collider HERA and of future colliders. These high-energy processes are assumed to be mediated by the exchange of heavy Majorana neutrinos (HMN). We consider two simple scenarios for the HMN mass spectrum: the effective singlet (\(m_1\ll m_2<m_3...\)) and the effective doublet (\(m_1<m_2\ll m_3...\)). For the latter case, the cross section includes information about CP-violating phases.