2017/03/31 by Richard Ruiz, Richard Ruíz · 43 citations
Physics and Astronomy · #Boson #Context (archaeology) #Dark Matter and Cosmic Phenomena #Gauge (firearms) #Gauge boson #Gauge theory #Hadron #Large Hadron Collider #Lepton #Lepton number #MAJORANA #Neutrino #Nuclear physics #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Physics beyond the Standard Model #Production (economics) #Standard Model (mathematical formulation) #hep-ex #hep-ph
paper · pdf · doi:10.1140/epjc/s10052-017-4950-2
published in The European Physical Journal C 77(6) (Springer Science+Business Media) · Published version. Minor typos, additional references. Results unchanged
openalex created_date 2017/03/23 · openalex publication_date 2017/06/01 · arxiv created 2017/06/08 · arxiv updated 2017/06/09 · openalex updated_date 2026/08/05
We reevaluate the necessity of WR gauge bosons being kinematically accessible to test the left–right symmetric model (LRSM) at hadron colliders. In the limit that WR are too heavy, resonant production of sub-TeV Majorana neutrinos N can still proceed at the Large Hadron Collider (LHC) via the process pp→ WR± *→ N ℓ ^± → ℓ ^± ℓ ^± +nj if mediated by a far off-shell WR . Traditional searches strategies are insensitive to this regime as they rely on momenta of final states scaling with TeV-scale MWR . For such situations, the process is actually kinematically and topologically identical to the direct production (DP) process pp→ WSM± * → N ℓ ^± → ℓ ^± ℓ ^± +nj . In this context, we reinterpret √(s)=8 TeV LHC constraints on DP rates for the minimal LRSM. For mN = 200–500 GeV and right–left coupling ratio κ R = gR/gL , we find (MWR / κ R)> 1.1–1.8 TeV at 95% CLs. Expected sensitivities to DP at 14 (100) TeV are also recast: with \mathscr L=1~(10) ab -1 , one can probe (MWR / κ R) < 7.9–8.9 (14–40) TeV for mN = 100–700 (1200) GeV, well beyond the anticipated sensitivity of resonant WR searches. Findings in terms of gauge invariant dimension-six operators with heavy N are also reported.