Measuring superparticle masses at hadron collider using the transverse mass kink
By Won Sang Cho, Kiwoon Choi, Yeong Gyun Kim, Chan Beom Park. 2007
189 citations recorded by the source corpus.
We present a detailed study of the collider observable mT2 applied for pair-produced superparticles decaying to visible particles and a pair of invisible lightest supersymmetric particles (LSPs). Analytic expressions of the maximum of mT2 over all events (mT2max) are derived. It is noticed that if the decay product of each superparticle involves more than one visible particle, mT2max being a function of the trial LSP mass mχ has a kink structure at mχ = true LSP mass, which can be used to determine the mother superparticle mass and the LSP mass simultaneously. To see how well mT2max can be constructed from collider data, a Monte-Carlo analysis of the gluino mT2 is performed for some superparticle spectra.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/af7f67be833cacfb5f883918c11b0688bd35e467
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In Nuclear and High Energy Physics
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- Johan Alwall
Citations in the corpus
- QCD Radiation in the Production of Heavy Colored Particles at the LHC (2008, background): “, [28, 29]) and combined information on kinematics, cross sections and branching ratios [30, 31], although especially the latter tend to be quite model dependent.”
- Using subsystem MT2 for complete mass determinations in decay chains with missing energy at hadron colliders (2008, methodology): “In particular, in the limit of pT = 0, the upper endpoint M (1,1,0) T2,max depends on the test mass M̃0 as follows [32]”
- A review of the mass measurement techniques proposed for the Large Hadron Collider (2010, background): “[120] W.”
- Supersymmetric particle mass measurement with the boost-corrected contransverse mass (2009, background): “[ 7 , 37]. In general msoln(δ) need not be bounded by m(δ), because AT and hence MCT appears in the denominator inside the square-root causing msoln(δ) not to be a monotonically increasing function of MCT.”
- Search for direct top-squark pair production in final states with two leptons in pp collisions at root s=8 TeV with the ATLAS detector (2014, background): “For tt̄ or WW decays, if the transverse momenta of the two leptons in each event are taken as pT,1 and pT,2, and E miss T as qT, mT2(`, `, E miss T ) is bounded sharply from above by the mass of the W boson [85, 86].”