0000000000949618
AUTHOR
C Leonidopoulos
Measurement of the Lund jet plane using charged particles in 13 TeV proton-proton collisions with the ATLAS detector
The prevalence of hadronic jets at the LHC requires that a deep understanding of jet formation and structure is achieved in order to reach the highest levels of experimental and theoretical precision. There have been many measurements of jet substructure at the LHC and previous colliders, but the targeted observables mix physical effects from various origins. Based on a recent proposal to factorize physical effects, this Letter presents a double-differential cross-section measurement of the Lund jet plane using 139 fb−1 of √s=13 TeV proton-proton collision data collected with the ATLAS detector using jets with transverse momentum above 675 GeV. The measurement uses charged particles to ac…
Search for new particles in the two-jet decay channel with the DØ detector
We present the results of a search for the production of new particles decaying into two jets in pp collisions at √s = 1.8 TeV, using the DØ 1992-1995 data set corresponding to 109 pb-1. We exclude at the 95% confidence level the production of excited quarks (q*) with masses below 775 GeV/c2, the most restrictive limit to date. We also exclude standard-model-like W′ (Z′) bosons with masses between 300 and 800 GeV/c2 (400 and 640 GeV/c2). A. W√ boson with mass <786 GeV/c2 has been excluded by previous measurements, and our lower limit is therefore the most stringent to date. © 2004 The American Physical Society.
Direct measurement of the W boson decay width
Based on 85 pb-1 data of p (p) over bar collisions at roots=1.8 TeV collected using the D empty set detector at Fermilab during the 1994-1995 run of the Tevatron, we present a direct measurement of the total decay width of the W boson Gamma(W). The width is determined from the transverse mass spectrum in the W-->e+nu(e) decay channel and found to be Gamma(W)=2.23(-0.14)(+0.15)(stat)+/-0.10(syst) GeV, consistent with the expectation from the standard model.