Scientific Library of Tomsk State University

   Digital catalogue        

Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in √s = 8 TeV proton-proton collisions using the ATLAS detector G. Aad, B. Abbott, J. Abdallah [et.al.]

Contributor(s): Aad, G | Abdallah, J | Chelkov, G. A | Vaniachine, A | Abbott, BMaterial type: ArticleArticleSubject(s): верхние кварки | Большой адронный коллайдер | протон-протонные столкновения | ATLAS, детекторGenre/Form: статьи в журналах Online resources: Click here to access online In: Physical Review D Vol. 93, № 3. P. 032009-1-032009-34Abstract: The differential cross-section for pair production of top quarks with high transverse momentum is measured in 20.3fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The measurement is performed for t¯t events in the lepton + jets channel. The cross-section is reported as a function of the hadronically decaying top quark transverse momentum for values above 300 GeV. The hadronically decaying top quark is reconstructed as an anti-k t jet with radius parameter R =1.0 and identified with jet substructure techniques. The observed yield is corrected for detector effects to obtain a cross-section at particle level in a fiducial region close to the event selection. A parton-level cross-section extrapolated to the full phase space is also reported for top quarks with transverse momentum above 300 GeV. The predictions of a majority of next-to-leading-order and leading-order matrix-element Monte Carlo generators are found to agree with the measured cross-sections.
Tags from this library: No tags from this library for this title. Log in to add tags.
No physical items for this record

Библиогр.: 96 назв.

The differential cross-section for pair production of top quarks with high transverse momentum is measured in
20.3fb−1 of proton-proton collisions at a center-of-mass energy of 8 TeV. The measurement is performed for t¯t events in the lepton + jets channel. The cross-section is reported as a function of the hadronically decaying top quark transverse momentum for values above 300 GeV. The hadronically decaying top quark is reconstructed as an anti-k t jet with radius parameter R =1.0 and identified with jet substructure techniques. The observed yield is corrected for detector effects to obtain a cross-section at particle level in a fiducial region close to the event selection. A parton-level cross-section extrapolated to the full phase space is also reported for top quarks with transverse momentum above 300 GeV. The predictions of a majority of next-to-leading-order and leading-order matrix-element Monte Carlo generators are found to agree with the measured cross-sections.

There are no comments on this title.

to post a comment.
Share