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Anomalous chromomagnetic and chromoelectric dipole moments of the top quark may arise from various high scale theories. We carry out a model independent study of such interactions focusing on the limits that can be obtained from current…

高能物理 - 唯象学 · 物理学 2010-10-12 Pratishruti Saha

We discuss the possibility of observing CPT violation from top anti-top production in hadronic colliders. We study a general approach by analyzing constraints on the mass difference between the top and anti-top quarks. We present current…

高能物理 - 唯象学 · 物理学 2015-06-12 Jose A. R. Cembranos

The mass of the top quark (\mtop) is a fundamental parameter of the standard model (SM). Currently, its most precise measurements are performed by the CDF and D0 collaborations at the Fermilab Tevatron $p\bar p$ collider at a centre-of-mass…

高能物理 - 实验 · 物理学 2019-08-14 Oleg Brandt

ATLAS has made several measurements of the top quark mass using proton-proton collision data recorded in 2012 at the LHC with a centre-of-mass energy of 8 TeV. Those summarised here include an indirect determination of the top quark pole…

高能物理 - 实验 · 物理学 2017-11-28 Benjamin Pearson

We present the latest measurements of the top quark mass from the Tevatron. The different top decay channels and measurement techniques used for these results are also described. The world average of the top quark mass based on some of…

高能物理 - 实验 · 物理学 2009-04-03 M. H. L. S. Wang

We have searched for production of t-tbar pairs in p-pbar interactions at 1.8 TeV center-of-mass energy at the FNAL Tevatron collider. The search assumes standard model decay for top quark into W + b quark. We observe in e+jet and mu+jet…

高能物理 - 实验 · 物理学 2007-05-23 Serban Protopopescu

We investigate a scenario that the top quark is the only window to the dark matter particle. We use the effective Lagrangian approach to write down the interaction between the top quark and the dark matter particle. Requiring the dark…

高能物理 - 唯象学 · 物理学 2010-11-11 Kingman Cheung , Kentarou Mawatari , Eibun Senaha , Po-Yan Tseng , Tzu-Chiang Yuan

Experimental measurements of the properties of the top quark have improved and will continue to improve significantly, with the excellent operation of the CDF and D0 experiments and the Tevatron $p\bar{p}$ collider at the Fermi National…

高能物理 - 实验 · 物理学 2010-04-22 Evelyn J. Thomson

Recent developments in models with warped extra dimensions have opened new possibilities for vector-like quark studies at hadron colliders. These new vector-like quarks can mix sizably with light Standard Model quarks without violating low…

高能物理 - 唯象学 · 物理学 2009-11-13 Anupama Atre , Marcela Carena , Tao Han , Jose Santiago

A suggestive phenomenological relation is found among the lepton and quark masses which suggests a new insight into the problem of generations and also gives a prediction for the top quark mass in agreement with the range of values which is…

高能物理 - 唯象学 · 物理学 2015-06-25 G. Mangano , F. Sannino

The Tevatron proton-antiproton collider at Fermilab with its centre of mass energy of 1.96 TeV is currently the only source for the production of top quarks. Its increased luminosity and centre of mass energy in Run II allow both collider…

高能物理 - 实验 · 物理学 2019-08-14 Marc-André Pleier

After many years searching for electroweak production of top quarks, the Tevatron collider experiments have now moved from obtaining first evidence for single top quark production to an impressive array of measurements that test the…

高能物理 - 实验 · 物理学 2008-09-08 A. P. Heinson

Possibilities are discussed for determining the top quark mass $m_t$ from observations on the decay processes for top-antitop pairs produced in antiproton-proton collisions, assuming that the $t \to bW^+$ decay channel is dominant and much…

高能物理 - 唯象学 · 物理学 2011-03-02 R. H. Dalitz , Gary R. Goldstein

We present results on top quark physics from the CDF and D0 collaborations at the Fermilab Tevatron proton anti-proton collider. These include legacy results from Run II that were published or submitted for publication before mid-2014, as…

高能物理 - 实验 · 物理学 2014-09-22 Cecilia E. Gerber , Costas Vellidis

The top quark has been discovered in 1995 at the CDF and DO experiments located in the Tevatron ring at the Fermilab laboratory. After more than a decade the Tevatron collider, with its center-of-mass energy collisions of 1.96 TeV, is still…

高能物理 - 实验 · 物理学 2007-10-22 Fabrizio Margaroli

In the last decades electroweak processes were studied at hadron and lepton colliders. By exploiting the large statistics and the c.o.m. energy available, hadron colliders played a significant role in performing precision measurements of…

高能物理 - 实验 · 物理学 2009-10-02 Giorgio Chiarelli

Years after its discovery in 1995 by CDF and D0, the top quark still undergoes intense investigations at the Tevatron. Using up to the full Run~II data sample, new measurements of top quark production and properties by the D0 Collaboration…

高能物理 - 实验 · 物理学 2015-06-22 R. Y. Peters

This letter presents results on the precision measurement of the top quark mass and a combination of the best CDF top mass measurements. A combination by the TevEWWG (Tevatron electroweak working group) of the best top mass results from CDF…

高能物理 - 实验 · 物理学 2008-10-07 P. Mehtala

A measurement of the top quark mass is performed using a data sample enriched with single top quark events produced in the $t$ channel. The study is based on proton-proton collision data, corresponding to an integrated luminosity of 35.9…

高能物理 - 实验 · 物理学 2021-12-30 CMS Collaboration