Measurement Of Transverse Energyu2013energy Correlations In Multi Jet Events In Pp Collisions At U221as PDF Download
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| Total Pages | : 21 |
| Release | : 2015 |
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Download Measurement of Transverse Energy{u2013}energy Correlations in Multi-jet Events in Pp Collisions at {u221A}s Book in PDF, ePub and Kindle
High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy–energy correlation function and its associated azimuthal asymmetry. The data were recorded with the ATLAS detector at the LHC in the year 2011 and correspond to an integrated luminosity of 158 pb–1. The selection criteria demand the average transverse momentum of the two leading jets in an event to be larger than 250 GeV. The data at detector level are well described by Monte Carlo event generators. They are unfolded to the particle level and compared with theoretical calculations at next-to-leading-order accuracy. The agreement between data and theory is good and provides a precision test of perturbative Quantum Chromodynamics at large momentum transfers. The strong coupling constant given at the Z boson mass is determined to be ?s(mZ)=0.1173±0.0010 (exp.) –0.0026+0.0065 (theo.).
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| Total Pages | : 21 |
| Release | : 2015 |
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Download Measurement of Transverse Energy-energy Correlations in Multi-jet Events in Pp Collisions at [arrow]" Book in PDF, ePub and Kindle
High transverse momentum jets produced in pp collisions at a centre of mass energy of 7 TeV are used to measure the transverse energy-energy correlation function and its associated azimuthal asymmetry. The data were recorded with the ATLAS detector at the LHC in the year 2011 and correspond to an integrated luminosity of 158 pb-1. The selection criteria demand the average transverse momentum of the two leading jets in an event to be larger than 250 GeV. The data at detector level are well described by Monte Carlo event generators. They are unfolded to the particle level and compared with theoretical calculations at next-to-leading-order accuracy. The agreement between data and theory is good and provides a precision test of perturbative Quantum Chromodynamics at large momentum transfers. The strong coupling constant given at the Z boson mass is determined to be [alpha]s(mZ)=0.1173"0.0010 (exp.) -0.0026+0.0065 (theo.).
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| Release | : 2014 |
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Download Measurement of the Cross-section of High Transverse Momentum Vector Bosons Reconstructed as Single Jets and Studies of Jet Substructure in Pp Collisions at {u221A}s Book in PDF, ePub and Kindle
This article presents a measurement of the cross-section for high transverse momentum W and Z bosons produced in pp collisions and decaying to all-hadronic final states. The data used in the analysis were recorded by the ATLAS detector at the CERN Large Hadron Collider at a centre-of-mass energy of $\sqrt{s}=7\;{\rm Te}{\rm V}$ and correspond to an integrated luminosity of $4.6\;{\rm f}{{{\rm b}}{̂-1}}$. The measurement is performed by reconstructing the boosted W or Z bosons in single jets. The reconstructed jet mass is used to identify the W and Z bosons, and a jet substructure method based on energy cluster information in the jet centre-of-mass frame is used to suppress the large multi-jet background. The cross-section for events with a hadronically decaying W or Z boson, with transverse momentum ${{p}_{{\rm T}}}\gt 320\;{\rm Ge}{\rm V}$ and pseudorapidity $
| Author | : Shreyasi Acharya |
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| Total Pages | : 0 |
| Release | : 2019 |
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Download Jet Fragmentation Transverse Momentum Measurements from Di-hadron Correlations in √s Book in PDF, ePub and Kindle
The transverse structure of jets was studied via jet fragmentation transverse momentum (jT) distributions, obtained using two-particle correlations in proton-proton and proton-lead collisions, measured with the ALICE experiment at the LHC. The highest transverse momentum particle in each event is used as the trigger particle and the region 3
