Author
Tumasyan, A., Işıldak, Bora
Publication Date
2023-11-24
Publication Place
-
Springer
Subject
Beyond standard model, Hadron-hadron scattering
Type
Periodical
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
1029-8479
Record ID
d3a42d3c-1d0b-42dd-96ff-f70a905a7f99
Library Location
Natural and Mathematical Sciences
Date
2023-11-24
Notes
SC (Armenia), BMBWF and FWF (Austria); FNRS and FWO (Belgium); CNPq, CAPES, FAPERJ, FAPERGS, and FAPESP (Brazil); MES and BNSF (Bulgaria); CERN; CAS, MoST, and NSFC (China); MINCIENCIAS (Colombia); MSES and CSF (Croatia); RIF (Cyprus); SENESCYT (Ecuador); MoER, ERC PUT and ERDF (Estonia); Academy of Finland, MEC, and HIP (Finland); CEA and CNRS/IN2P3 (France); BMBF, DFG, and HGF (Germany); GSRI (Greece); NK-FIH (Hungary); DAE and DST (India); IPM (Iran); SFI (Ireland); INFN (Italy); MSIP and NRF (Republic of Korea); MES (Latvia); LAS (Lithuania); MOE and UM (Malaysia); BUAP, CINVESTAV, CONACYT, LNS, SEP, and UASLP-FAI (Mexico); MOS (Montenegro); MBIE (New Zealand); PAEC (Pakistan); MES and NSC (Poland); FCT (Portugal); MESTD (Serbia); MCIN/AEI and PCTI (Spain); MOSTR (Sri Lanka); Swiss Funding Agencies (Switzerland); MST (Taipei); MHESI and NSTDA (Thailand); TUBITAK and TENMAK (Turkey); NASU (Ukraine); STFC (United Kingdom); DOE and NSF (U.S.A.).
Sample Text
A search for the production of pairs of heavy Majorana neutrinos (N-& ell;) from the decays of Z ' bosons is performed using the CMS detector at the LHC. The data were collected in proton-proton collisions at a center-of-mass energy of root s = 13 TeV, with an integrated luminosity of 138 fb(-1). The signature for the search is an excess in the invariant mass distribution of the final-state objects, two same-flavor leptons (e or mu) and at least two jets. No significant excess of events beyond the expected background is observed. Upper limits at 95% confidence level are set on the product of the Z ' production cross section and its branching fraction to a pair of N-& ell;, as functions of N-& ell; and Z ' boson masses (m(N & ell;) and m(Z '), respectively) for m(Z ') from 0.4 to 4.6 TeV and m(N & ell;) from 0.1 TeV to m(Z ')/2. In the theoretical framework of a left-right symmetric model, exclusion bounds in the m(N & ell;)-m(Z ') plane are presented in both the electron and muon channels. The observed upper limit on m(Z ') reaches up to 4.42 TeV. These are the most restrictive limits to date on the mass of N as a function of the Z ' boson mass.
DOI
10.1007/JHEP11(2023)181
