Boosted jets

Heavy new physics

Given all the unsolved mysteries of particle physics, we expect that there are new particles to discover just around the corner.  We may not have found them yet because they are more massive than anything we have ever observed. 

When a heavy, new particle decays into lighter particles, they receive a kick of energy called a boost.  This boost means that when the lighter particle decays, the produced particles are collimated.  

Boosted jets

Our group looks for boosted bosons decaying to jets.  These could be coming from heavy new particles.

We have used boosted jets to search for extra dimensions, heavy gravitons, and new forces.  We have probed whether standard model particles, assumed to be fundamental, could actually be composed of other particles. 

We have looked for boosted W bosons, Z bosons, and Higgs bosons, decaying to b-quarks, light quarks, and tau leptons. 

"Boosted" publications from Kilminster's CMS group

2019 : 

Combination of CMS searches for heavy resonances decaying to pairs of bosons or leptons

A multi-dimensional search for new heavy resonances decaying to boosted WW, WZ, or ZZ boson pairs in the dijet final state at 13 TeV

Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at s√= 13 TeV

 

2018 : 

Search for massive resonances decaying into WW, WZ, ZZ, qW, and qZ with dijet final states at s√= 13 TeV

Search for heavy resonances decaying into two Higgs bosons or into a Higgs boson and a W or Z boson in proton-proton collisions at 13 TeV

Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos and b quarks at s√= 13 TeV

Search for a heavy resonance decaying into a Z boson and a vector boson in the ννqq final state

Search for a heavy resonance decaying to a pair of vector bosons in the lepton plus merged jet final state at s√= 13 TeV

 

2017 : 

Search for heavy resonances that decay into a vector boson and a Higgs boson in hadronic final states at sqrt(s) = 13 TeV

Search for heavy resonances decaying into a vector boson and a Higgs boson in final states with charged leptons, neutrinos, and b quarks

Search for massive resonances decaying into WW, WZ or ZZ bosons in proton-proton collisions at sqrt(s) = 13 TeV

Combination of searches for heavy resonances decaying to WW, WZ, ZZ, WH, and ZH boson pairs in proton-proton collisions at sqrt(s) = 8 and 13 TeV

 

2016 : 

Search for massive WH resonances decaying into the l nu b anti-b final state at sqrt(s) = 8 TeV

Search for a massive resonance decaying into a Higgs boson and a W or Z boson in hadronic final states in proton-proton collisions at sqrt(s) = 8 TeV

 

2015 : 

First look for resonances in the 13 TeV c.o.m. data (PAS only)

Search for boosted H->bb and boosted H-> tautau (PAS only)

Search for narrow high-mass resonances in proton-proton collisions at sqrt(s) = 8 TeV decaying to a Z and a Higgs boson

 

2014 : 

Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at sqrt(s) = 8 TeV

Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV