S. M. Shaw
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View article: Topological Strings in SU(3) Gauge Theory at Finite Temperature
Topological Strings in SU(3) Gauge Theory at Finite Temperature Open
We investigate string configurations in the deconfined phase of SU(3) gauge theory, which arise from the spontaneous breaking of the $Z_3$ center symmetry. These configurations form at the junctions of domain walls of the theory. The compl…
View article: Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector
Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector Open
View article: Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt s$ =13 TeV with the ATLAS detector
Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt s$ =13 TeV with the ATLAS detector Open
A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four charged leptons (3ℓ and 4ℓ, ℓ=e,μ) is presented. The analysis aims to be sensitive to a wide range of potential new-physics theo…
View article: Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment
Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment Open
A search optimized for new heavy particles decaying to two $b$-quarks and produced in association with additional $b$-quarks is reported. The sensitivity is improved by $b$-tagging at least one lower-$p_\text{T}$ jet in addition to the two…
View article: Measurement of the $c$-jet mistagging efficiency in $t\bar{t}$ events using $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector
Measurement of the $c$-jet mistagging efficiency in $t\bar{t}$ events using $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector Open
A technique is presented to measure the efficiency with which $c$-jets are mistagged as b-jets (mistagging efficiency) using $t\bar{t}$ events, where one of the $W$ bosons decays into an electron or muon and a neutrino and the other decays…
View article: Diboson searches including HH in ATLAS and CMS in Run2
Diboson searches including HH in ATLAS and CMS in Run2 Open
Many models for physics beyond the Standard Model, such as an extended Higgs sector, Heavy Vector triplets ($W'$ and $Z'$), or exited states of of gravitons, predict a heavy resonance that decays to a pair of bosons ($W$, $Z$, $H$). Recent…
View article: Study of stability of gain and energy resolution for GEM detector in high rate operation
Study of stability of gain and energy resolution for GEM detector in high rate operation Open
Study of the stability of gain and energy resolution for a triple GEM detector has been performed under continuous radiation of X-ray with high rate, using premixed gas of Argon and CO$_2$ in 70/30 ratio and conventional NIM electronics. A…
View article: The ATLAS Trigger system upgrade and performance in Run 2
The ATLAS Trigger system upgrade and performance in Run 2 Open
The ATLAS trigger has been used very successfully for the online event selection during the first part of the second LHC run (Run-2) in 2015/16 at a centre-of-mass energy of 13 TeV. The trigger system is composed of a hardware Level-1 trig…
View article: Searches for new resonances decaying into bosons with the ATLAS detector
Searches for new resonances decaying into bosons with the ATLAS detector Open
Many extensions to the Standard Model predicts new particles decaying into two bosons (WW, WZ, ZZ , W/Zgamma, W/ZH and HH) making this a smoking gun signature. Searches for such diboson resonances have been performed in final states with d…
View article: The Run-2 ATLAS Trigger System
The Run-2 ATLAS Trigger System Open
The ATLAS trigger has been successfully collecting collision data during the first run of the LHC between 2009-2013 at a centre-of-mass energy between 900 GeV and 8 TeV. The trigger system consists of a hardware Level-1 (L1) and a software…