Change search
ReferencesLink to record
Permanent link

Direct link
Measurement of transverse energy-energy correlations in multi-jet events in pp collisions at root s=7 TeV using the ATLAS detector and determination of the strong coupling constant alpha(s)(m(Z))
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.
KTH, School of Engineering Sciences (SCI), Physics, Particle and Astroparticle Physics.ORCID iD: 0000-0002-8913-0981
Show others and affiliations
Number of Authors: 2857
2015 (English)In: Physics Letters B, ISSN 0370-2693, E-ISSN 1873-2445, Vol. 750, 427-447 p.Article in journal (Refereed) Published
Abstract [en]

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. From this comparison, the strong coupling constant given at the Z boson mass is determined to be alpha(s)(m(Z)) = 0.1173 +/- 0.0010 (exp.) (+0.0065)(-0.0026) (theo.).

Place, publisher, year, edition, pages
Elsevier, 2015. Vol. 750, 427-447 p.
Keyword [en]
Performance of High Energy Physics Detectors, Simulation methods and programs, Analysis and statistical methods
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-180357DOI: 10.1016/j.physletb.2015.09.050ISI: 000364250600072ScopusID: 2-s2.0-84948400644OAI: diva2:893385
Knut and Alice Wallenberg FoundationSwedish Research Council

QC 20160112

Available from: 2016-01-12 Created: 2016-01-12 Last updated: 2016-01-12Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Search in DiVA

By author/editor
Lund-Jensen, BengtSidebo, EdvinStrandberg, Jonas
By organisation
Particle and Astroparticle Physics
In the same journal
Physics Letters B
Subatomic Physics

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 46 hits
ReferencesLink to record
Permanent link

Direct link