منابع مشابه
Top Quark Mass Measurements at Cdf
The mass of the top quark Mtop is interesting both as a fundamental parameter of the standard model and as an important input to precision electroweak tests. The Collider Detector at Fermilab (CDF) has a robust program of top quark mass analyses, including the most precise single measurement, Mtop = 173.4 ± 2.8 GeV/c 2 , using 680 pb −1 of p¯ p collision data. A combination of current results f...
متن کاملPrecision top-quark mass measurement at CDF.
We present a precision measurement of the top-quark mass using the full sample of Tevatron √s = 1.96 TeV proton-antiproton collisions collected by the CDF II detector, corresponding to an integrated luminosity of 8.7 fb(-1). Using a sample of tt¯ candidate events decaying into the lepton+jets channel, we obtain distributions of the top-quark masses and the invariant mass of two jets from the W ...
متن کاملTop Quark Mass Measurements at CDF
Recent measurements of the mass of the top quark (t) are presented using 162 pb of data of pp collisions at √ s = 1.96TeV collected by the CDF detector at the Tevatron collider during Run II. The analyses focus on the semi-leptonic decay mode tt̄ → (blν)(bqq̄) with one or two identified bottom quarks (b). The Template Method (TM) reconstructs the invariant mass of the top quark in each event. The...
متن کاملTop-quark mass measurement from dilepton events at CDF II.
We report a measurement of the top-quark mass using events collected by the CDF II detector from pp collisions at square root of s = 1.96 TeV at the Fermilab Tevatron. We calculate a likelihood function for the top-quark mass in events that are consistent with tt --> bl(-)nu(l)bl'+ nu'(l) decays. The likelihood is formed as the convolution of the leading-order matrix element and detector resolu...
متن کاملCombination of Single Top Quark Production Results from CDF
Recently, the CDF experiment at the Fermilab Tevatron has used complementary methods to make multiple measurements of the singly produced top quark cross section. All analyses use the same dataset with more than 2 fb of CDF data and event selection based on W + 2 or W + 3 jet events with at least one b-tagged jet. However, due to differences in analysis techniques these results are not fully co...
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ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 1998
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(97)01098-0