arXiv : The Top Mass in Hadronic Collisions

Nason, Paolo

doi:10.1142/9789813238053_0008

Article
Report number	arXiv:1712.02796 ; CERN-TH-2017-266
Title	The Top Mass in Hadronic Collisions
Related title	The Top Mass in Hadronic Collisions
Author(s)	Nason, Paolo (CERN ; INFN, Milan Bicocca)
Publication	2019
Imprint	2017-12-07
Number of pages	29
Note	Contribution to the volume "From My Vast Repertoire - The Legacy of Guido Altarelli. Added in this version: three references
In:	From my vast repertoire, pp.123-151
DOI	10.1142/9789813238053_0008
Subject category	hep-ex ; Particle Physics - Experiment ; hep-ph ; Particle Physics - Phenomenology
Abstract	I discuss theoretical issues related to the top mass measurements in hadronic collisions.
Copyright/License	arXiv nonexclusive-distrib. 1.0

$In the left figure, the terms in the perturbative expansion for the pole mass relation are plotted as a function of the order. In the right figure, the pole mass ambiguity as a function of the pole mass, determined using the methods D and I described in the text are plotted as a function of the \PNmcMSbar{} mass $m$ for two choices of the parameter $f$. The value corresponding to the Im/Pi method is also shown. The vertical lines correspond to $m=1.3$, $4.2$, $20$ and $163$~GeV.$ $In the left figure, the terms in the perturbative expansion for the pole mass relation are plotted as a function of the order. In the right figure, the pole mass ambiguity as a function of the pole mass, determined using the methods D and I described in the text are plotted as a function of the \PNmcMSbar{} mass $m$ for two choices of the parameter $f$. The value corresponding to the Im/Pi method is also shown. The vertical lines correspond to $m=1.3$, $4.2$, $20$ and $163$~GeV.$ $Scale dependence of the pole - \PNmcMSbar{} mass difference. The scale is varied by a factor of two above and below $m$. The curves labelled as ``fixed range'' are obtained by holding the position of the minimal term and of the range fixed while varying the scale; the curves labelled as ``variable range'' are obtained by recomputing the minimal term and the range for each scale choice. In the case of method $I$ the result does not depend upon $f$, while in the case of method $D$ a mild dependence upon $f$ is found, as can be easily understood from the definition of the method.$ Show more plots

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Записът е създаден на 2018-01-17, последна промяна на 2023-03-14

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