Measurement of the top-quark mass using missing ET plus jets events with secondary vertex b-tagging at CDF II

被引:10
作者
Aaltonen, T. [1 ]
Abulencia, A.
Adelman, J.
Affolder, T.
Akimoto, T.
Albrow, M. G.
Amerio, S.
Amidei, D.
Anastassov, A.
Anikeev, K.
Annovi, A.
Antos, J.
Aoki, M.
Apollinari, G.
Arisawa, T.
Artikov, A.
Ashmanskas, W.
Attal, A.
Aurisano, A.
Azfar, F.
Azzi-Bacchetta, P.
Azzurri, P.
Bacchetta, N.
Badgett, W.
Barbaro-Galtieri, A.
Barnes, V. E.
Barnett, B. A.
Baroiant, S.
Bartsch, V.
Bauer, G.
Beauchemin, P. -H.
Bedeschi, F.
Behari, S.
Bellettini, G.
Bellinger, J.
Belloni, A.
Benjamin, D.
Beretvas, A.
Beringer, J.
Berry, T.
Bhatti, A.
Binkley, M.
Bisello, D.
Bizjak, I.
Blair, R. E.
Blocker, C.
Blumenfeld, B.
Bocci, A.
Bodek, A.
Boisvert, V.
机构
[1] Okayama Univ, Okayama 7008530, Japan
来源
PHYSICAL REVIEW D | 2007年 / 75卷 / 11期
基金
英国科学技术设施理事会;
关键词
D O I
10.1103/PhysRevD.75.111103
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a measurement of the top-quark mass in p (p) over bar ollisions at root s = 1.96 TeV which uses events with an inclusive signature of missing transverse energy and jets. The event selection is sensitive to t (t) over bar -> W(+)bW(-)(b) over bar -> l nu bqq(') (b) over bar independent of the lepton flavor and results in a large acceptance for W -> tau nu decays. All-hadronic t (t) over bar decays and events with identified electrons or muons are vetoed to provide a statistically independent sample with respect to all previous measurements. The top-quark mass is inferred from the distribution of the scalar sum of all jet transverse energies and the missing transverse energy. Using 311 pb(-1) of integrated luminosity recorded by the Collider Detector at Fermilab, we measure a top-quark mass m(t) = 172.3(-9.6)(+10.8)(stat) +/- 10.8(syst) GeV/c(2). While the uncertainty on m(t) is larger than that of other measurements, the result is statistically uncorrelated with those of other methods and thus can help to reduce the overall m(t) uncertainty when combined with other existing measurements.
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页数:8
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