Results 41 to 50 of about 1,476,078 (205)
Bottom-quark fragmentation in top-quark decay [PDF]
Nuclear Physics B, 2002 We study the fragmentation of the b quark in top decay in NLO QCD, within the framework of perturbative fragmentation, which allows one to resum large logarithms $\sim\log (m_t^2/m_b^2)$. We show the b-energy distribution, which we compare with the exact ${\cal O} (α_S)$ result for a massive b quark.
Corcella, Gennaro, Mitov, Alexander D.
openaire +2 more sources
Chemistry – A European Journal, EarlyView.Five heteroleptic iridium(III) complexes bearing cyclometalated 2,4‐diphenylpyridinato ligands were synthesized and their electrochemiluminescence (ECL) investigated. Two different coreactants were evaluated: tri‐n‐propylamine and benzoyl peroxide under anodic and cathodic potentials, respectively.
Ovini Jayawardana +6 more
wiley +1 more source
Top-Quark Mass and Bottom-Quark Decay [PDF]
Physical Review Letters, 1983 The possibility of a long B-meson lifetime is explored, in which case the weak mixing angles θ_2 and θ_3 are quite small. This allows the derivation of a lower bound on the top-quark mass as a function of the B-meson lifetime, by comparison of the short-distance prediction for the CP-nonconservation parameter e with its experimental value. The bound is
Paul H. Ginsparg +2 more
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Measurement of the top quark mass with the template method in the tt¯→lepton+jets channel using ATLAS data [PDF]
, 2012 The top quark mass has been measured using the template method in the tt¯→lepton+jets channel based on data recorded in 2011 with the ATLAS detector at the LHC. The data were taken at a proton-proton centre-of-mass energy of s√=7 TeV and correspond to an
core +3 more sources
Differential top-quark pair production measurements
EPJ Web of Conferences, 2014 The large number of top quarks produced at the CERN Large Hadron Collider makes it possible to measure the top-quark pair production cross-section differentially with respect to different observables. Differential measurements are important for precision
Bernard Clare
doaj +1 more source
Nuclear Physics B, 2020 The determination of the electromagnetic dipole moments of the top quark is one of the most important goals of the top quark physics program in the collider experiments. For this reason, the top quark pair production to investigate the sensitivity on the
M. Koksal
doaj +1 more source
Top quarks and flavor physics [PDF]
Physical Review D, 1995 Because of the top quark's very large mass, about 175~GeV, it now provides the best window into flavor physics. Thus, pair--production of top quarks at the Tevatron Collider is the best probe of this physics until the Large Hadron Collider turns on in the next century.
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Archaeometry, EarlyView.ABSTRACT The specific depth‐profiling capabilities of the muonic x‐ray emission spectroscopy (μ‐XES) technique have proved to be effective for examination of the elemental distribution within ancient coins. This ‘layered’ analysis can also be applied to the examination of ancient faience, the production of which can result in distinct layers (glaze ...
Juliet V. Spedding +2 more
wiley +1 more source
Constraining top-quark couplings combining top-quark and $$\varvec{B}$$ B decay observables
European Physical Journal C: Particles and Fields, 2020 We present a first, consistent combination of measurements from top-quark and B physics to constrain top-quark properties within the Standard Model Effective Field Theory (SMEFT).
Stefan Bißmann +4 more
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Nature's Complexity Alive: Farewell to Several Unificatory Cosmological Arguments for Monism
Noûs, EarlyView.ABSTRACT Throughout history, numerous thinkers have claimed that monism—in the form of priority monism, existence monism, monotheistic monism, or versions that posit an extra‐cosmic ultimate being—theoretically surpasses pluralism, above all by positing a unified universe.
Lok‐Chi Chan
wiley +1 more source