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First measurement of the forward-backward asymmetry in bottom-quark pair production at high mass

Aaltonen, T.
•
Amerio, S.
•
Amidei, D.
altro
SANTI, Lorenzo Gianni
2015
  • journal article

Periodico
PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY
Abstract
We measure the particle-level forward-backward production asymmetry in b (b) over bar pairs with masses (m(b (b) over bar)) larger than 150 GeV/c(2), using events with hadronic jets and employing jet charge to distinguish b from (b) over bar. The measurement uses 9.5 fb(-1) of p (p) over bar collisions at a center-of-mass energy of 1.96 TeV recorded by the CDF II detector. The asymmetry as a function of m(b (b) over bar) is consistent with zero, as well as with the predictions of the standard model. The measurement disfavors a simple model including an axigluon with a mass of 200 GeV/c(2), whereas a model containing a heavier 345 GeV/c(2) axigluon is not excluded.
DOI
10.1103/PhysRevD.92.032006
WOS
WOS:000359865700002
Archivio
http://hdl.handle.net/11390/1084175
info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84940470169
http://harvest.aps.org/bagit/articles/10.1103/PhysRevD.92.032006/apsxml
Diritti
metadata only access
Soggetti
  • Nuclear and High Ener...

Scopus© citazioni
8
Data di acquisizione
Jun 7, 2022
Vedi dettagli
Web of Science© citazioni
4
Data di acquisizione
Mar 25, 2024
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