Measurement of the cross-section of high transverse momentum vector bosons reconstructed as single jets and studies of jet substructure in pp collisions at [radical]s = 7 TeV with the ATLAS detector

This paper 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 [r...

Full description

Saved in:
Bibliographic Details
Published in:New journal of physics 2014, Vol.16, p.1-34
Main Authors: Aad, Georges, Abajyan, Tatevik, Abbott, Brad, Abdallah, Jalal, Abdel Khalek, Samah, Abdinov, Ovsat Bahram oglu, Aben, Rosemarie, Abi, Babak, Abolins, Maris, AbouZeid, Hass, Buanes, Trygve, Dale, Ørjan, Eigen, Gerald, Kastanas, Alex, Liebig, Wolfgang, Lipniacka, Anna, Martin dit Latour, Bertrand, Rosendahl, Peter Lundgaard, Sandaker, Heidi, Sjursen, Therese B, Stugu, Bjarne, Ugland, Maren, Bugge, Lars, Cameron, David Gordon, Czyczula, Zofia, Gjelsten, Børge Kile, Gramstad, Eirik, Ould-Saada, Farid, Pajchel, Katarina, Pedersen, Maiken, Pylypchenko, Yuriy, Read, Alexander Lincoln, Røhne, Ole Myren, Smestad, Lillian, Stapnes, Steinar, Strandlie, Are, Abramowicz, Halina, Abreu, Henso, Adamczyk, Leszek, Adams, David, Addy, Tetteh N, Adelman, Jareed, Adomeit, Stefanie, Adye, Tim, Agatonovic-Jovin, Tatjana, Aguilar Saavedra, Juan Antonio, Agustoni, Marco, Ahlen, Steven, Åkesson, Torsten P.A, Åsman, Barbro, ATLAS, Collaboration
Format: Article
Language:English
Subjects:
boosted
Bosons
Cross sections (physics)
Decay
Energy use
hadronic W
jet substructure
Jets
Mathematical analysis
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Substructures
Transverse momentum
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper 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 [radical]s = 7 TeV and correspond to an integrated luminosity of 4.6 fb super(-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 sub(T) > 320 GeV and pseudorapidity |[eta]| < 1.9, is measured to be [sigma] sub()W+ Z= 8.5 + or - 1.7 pb and is compared to next-to-leading-order calculations. The selected events are further used to study jet grooming techniques.
ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/16/11/113013