Liu, Wei;
Kulkarni, Suchita;
Deppisch, Frank F;
(2022)
Heavy neutrinos at the FCC-hh in the U(1)B−L model.
Physical Review D
, 105
(9)
, Article 095043. 10.1103/physrevd.105.095043.
Preview |
Text
PhysRevD.105.095043.pdf - Published Version Download (1MB) | Preview |
Abstract
We investigate the potential of the 100 TeV future circular collider (FCC-hh) to probe heavy neutrinos. We concentrate in particular on heavy neutrino production via a Uð1ÞB−L Z0 gauge boson and contrast the resulting limits with that mediated by Standard Model weak currents. We consider heavy neutrino decays to semileptonic as well as fully leptonic final states, particularly with muon flavor, and we show the importance of considering searches both in prompt and displaced decays of the heavy neutrinos. For prompt final states, semileptonic modes are more promising due to smaller background and larger yields, and TeV-scale heavy neutrinos with active-sterile mixing compatible with light neutrino mass generation in 0 −2 a seesaw scenario can be probed for a 5 TeV Z and gauge coupling as low as gB−L 1⁄4 10 . Displaced vertex searches can extend this range to heavy neutrino masses as low as 10 GeV.
| Type: | Article |
|---|---|
| Title: | Heavy neutrinos at the FCC-hh in the U(1)B−L model |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/physrevd.105.095043 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevD.105.095043 |
| Language: | English |
| Additional information: | Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. |
| UCL classification: | UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy UCL > Provost and Vice Provost Offices > UCL BEAMS UCL |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10150336 |
Archive Staff Only
 |
View Item |
