-
Adrian Signer (PSI, Villigen)06/05/2015, 10:00An introductory discussion of the main basic issues regarding determinations of the top quark mass is given. After a reminder of how to extract a fundamental parameter in a quantum field theory from observables, I will concentrate on two issues. First, which observables are particulary well suited for a determination of the top mass. Second, are some mass definitions better than others?Go to contribution page
-
Andre Hoang (Vienna U.)06/05/2015, 11:00I will talk about ways to better understand the concepts behind the Monte Carlo (MC) top mass parameter and about theoretical thoughts of how it may be related to renormalized field theory mass definitions. The only possible way I can currently see to clarify the question in a more concrete way is by comparing hadron-level QCD calculations for observables which are highly top mass...Go to contribution page
-
Sven-Olaf Moch (DESY)06/05/2015, 15:00The top-quark mass is a fundamental parameter of the Standard Model. We will motivate, why precision determinations of the top-quark mass are important in the upcoming high-energy run of the LHC and discuss the prerequisites in theory for the extraction of a well-defined mass parameter in a given renormalization scheme. We show that the top-quark's running mass in the MSbar scheme can...Go to contribution page
-
Spyridon Argyropoulos (DESY, Hamburg)07/05/2015, 10:00Color reconnection constitutes one of the main limiting factors for the high-precision top-mass measurements at hadron colliders. This talk will describe what color reconnection is, how it is modeled in event generators and how it affects the reconstruction of top final states, with a particular emphasis on the top mass. A series of new color reconnection models implemented in Pythia 8...Go to contribution page
-
Sandra Leone (INFN Pisa)07/05/2015, 11:00I will show a summary of the top quark mass measurements at the Tevatron. In particular, I will concentrate on the evolution of the "template" method from its first application to the most recent results in the dilepton, lepton plus jets and all hadronic top pair decay channelsGo to contribution page
-
Marina Cobal (Udine U. & INFN)07/05/2015, 11:30The top quark is a fundamental constituent of the Standard Model. Its properties are accurately predicted by the theory, except for its mass, which remains a fundamental parameter of the SM. Since the start of the Large Hadron Collider many million of top-antitop quark pairs are available for study. With such a statistics, the physics of the top quark has entered the precision era. The...Go to contribution page
-
Roberto Chierici (CMS/IPNL Lyon)07/05/2015, 14:30A precise measurement of the top mass is one of the key aspects for testing the Standard Model. A short review of the experimental methodologies used at CMS will be given, including both direct and indirect reconstruction methods. Results will be presented and discussed, with emphasis to the systematic errors, now dominating the total uncertainty. The last part of the talk will be devoted...Go to contribution page
-
Dr Roberto Franceschini (CERN)07/05/2015, 15:00I will review some recent strategies for the top quark mass measurement, stressing in particular the foundation of each method on features of the kinematics of top quark production and decay at the Large Hadron Collider. Some of the advantages and drawbacks are discussed; in particular, I will present issues connected with the present status of the event simulations and theoretical...Go to contribution page
-
Vincenzo Branchina (Catania U. & INFN)08/05/2015, 10:00According to the standard analysis, the stability condition of the EW vacuum mainly depends on the values of the Higgs and top masses, MH and Mt. For this reason, it has been believed and strongly stressed in the last years that a precision measurement of Mt will provide an answer to the crucial question of whether our universe is in a stable or metastable vacuum, or at the edge of...Go to contribution page
-
Michael Scherer (Inst. fur Theoretische Physik, Heidelberg)08/05/2015, 11:00In view of the measured Higgs mass of 125 GeV, the perturbative renormalization group evolution of the Standard Model suggests that our Higgs vacuum might not be stable. I will present recent work where we connected the usual perturbative approach and the functional renormalization group which allows for a straightforward inclusion of higher-dimensional operators in the presence of an...Go to contribution page
-
Fabio Maltoni08/05/2015, 15:00I would like to discuss how we could systematically look for new physics in top quark interactions at the LHC by using an EFT approach.Go to contribution page
Choose timezone
Your profile timezone: