Measurement of kT splitting scales in W→ℓv events at √s=7 TeV with the ATLAS detector
- Aad, G.
- Abajyan, T.
- Abbott, B.
- Abdallah, J.
- Abdel Khalek, S.
- Alonso, Francisco
- Anduaga, Xabier Sebastian
- Dova, Maria Teresa
- González Silva, María Laura
- Monticelli, Fernando Gabriel
- Otero y Garzon, Gustavo Javier
- Piegaia, Ricardo Nestor
- Romeo, Gaston Leonardo
- Tripiana, Martin Fernando
- Zhuravlov, V.
- Zibell, A.
- Zieminska, D.
- Zimin, N. I.
- Zimmermann, R.
- Zimmermann, S.
- Zimmermann, S.
- Zinonos, Z.
- Ziolkowski, M.
- Zitoun, R.
- Živković, L.
- Zmouchko, V. V.
- Zobernig, G.
- Zoccoli, A.
- zur Nedden, M.
- Zutshi, V.
- Zwalinski, L
DOIAbstract
A measurement of splitting scales, as defined by the kT clustering algorithm, is presented for final states containing a W boson produced in proton–proton collisions at a centre-of-mass energy of 7 TeV. The measurement is based on the full 2010 data sample corresponding to an integrated luminosity of 36 pb−1 which was collected using the ATLAS detector at the CERN Large Hadron Collider. Cluster splitting scales are measured in events containing W bosons decaying to electrons or muons. The measurement comprises the four hardest splitting scales in a kT cluster sequence of the hadronic activity accompanying the W boson, and ratios of these splitting scales. Backgrounds such as multi-jet and top-quark-pair production are subtracted and the res...