We present a measurement of the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV which uses events with an inclusive signature of significant missing transverse energy and jets. This is the first measurement which makes no explicit lepton identification requirements, so that sensitivity to W ->tau nu decays is maintained. Heavy flavor jets from top quark decay are identified with a secondary vertex tagging algorithm. From 311 pb(-1) of data collected by the Collider Detector at Fermilab, we measure a production cross section of 5.8 +/- 1.2(stat)(-0.7)(+0.9)(syst) pb for a top quark mass of 178 GeV/c(2), in agreement with previous determinations and standard model predictions.
Measurement of the t(t)over-bar production cross section in p(p)over-bar collisions at root s=1.96 TeV using missing E(T) + jets events with secondary vertex b tagging RID G-1087-2011 RID E-4473-2011
MORELLO, MICHAEL JOSEPH;
2006
Abstract
We present a measurement of the t (t) over bar production cross section in p (p) over bar collisions at root s = 1.96 TeV which uses events with an inclusive signature of significant missing transverse energy and jets. This is the first measurement which makes no explicit lepton identification requirements, so that sensitivity to W ->tau nu decays is maintained. Heavy flavor jets from top quark decay are identified with a secondary vertex tagging algorithm. From 311 pb(-1) of data collected by the Collider Detector at Fermilab, we measure a production cross section of 5.8 +/- 1.2(stat)(-0.7)(+0.9)(syst) pb for a top quark mass of 178 GeV/c(2), in agreement with previous determinations and standard model predictions.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
