top quarks
Search for dark matter produced in association with bottom or top quarks in root s=13 TeV pp collisions with the ATLAS detector
... with top quarks and decaying into a pair of dark- matter particles, mediator masses below 50 GeV are excluded assuming a dark-matter candidate mass of 1 GeV and unitary ...bottom quarks, the search ...
36
Search for the Standard Model Higgs boson produced in association with top quarks with the ATLAS detector
... The dominant decay mode for a Higgs boson with a mass around 125 GeV is H → b b, with a branch- ¯ ing ratio of approximately 58%. However, it usually suffers from a large background associated with heavy flavour jets, ...
9
Search for the Higgs boson produced in association with top quarks
... of top quarks (ttH) allows to directly access the Higgs-top coupling, which is im- portant to understand if the top quark, given its large mass, plays a special role in the electroweak ...
6
Identification of high transverse momentum top quarks in pp collisions at s=8 TeV with the ATLAS detector
... the top-quark mass, a second at the W -boson mass and a third around 35 ...the top-quark purity in the region near the top-quark mass is very high, with the largest contribution being matched t ...
81
Boosted Top Quarks, Top Pair Resonances, and Top Partner Searches at the LHC
... of top quark ...and top quark decay products become highly boosted, requiring the use of special identification ...boosted top quarks, and highlights several new physics searches from ATLAS ...
6
Identification of high transverse momentum top quarks in pp collisions at √s=8 TeV with the ATLAS detector
... the top-quark mass, a second at the W -boson mass and a third around 35 ...the top-quark purity in the region near the top-quark mass is very high, with the largest contribution being matched t ...
81
A Search for the Higgs Boson Produced in Association With Top Quarks in Multilepton Final States at Atlas
... The Standard Model of particle physics (SM) is an extraordinarily successful description of the fundamental constituents of matter and their interactions. Many experiments have verified the extremely precise prediction ...
148
Measurement of the mass difference between top and anti top quarks in pp collisions at √s = 7 TeV using the ATLAS detector
... The top quark has the unique property of decaying before hadronization, making it the only quark for which a direct measurement of its mass is possi- ...between top and anti-top quarks to be m ...
18
Evidence for production of single top quarks
... single top quarks in the D0 detector at the Fermilab Tevatron p p ...a top quark together with an antibottom quark or light quark, without the antiparticle top-quark partner that is always ...
47
A search for tt resonances in lepton+jets events with highly boosted top quarks collected in pp collisions at √s = 7TeV with the ATLAS detector
... leptophobic top- color Z 0 model considered ...boosted top quarks is significantly enhanced in the 1−2 TeV region with respect to a previously published search using the same data set ...
46
Targeting Natural Supersymmetry With Top Quarks
... light top squarks (stops) with the ATLAS experiment, using 13 TeV proton-proton collision data delivered by the Large Hadron ...to top quarks, b jets, and a variety of other supersymmetric ...a ...
307
Energy profile of b-jet for boosted top quarks
... the top sector. The information of the polarisation for a highly boosted top-quark is translated into that of helicities, since the chirality coincides with the helicity at high ...boosted top-quark ...
6
Direct Search for Charged Higgs Bosons in Decays of Top Quarks
... type quarks and neutrinos, and the other to down-type quarks and charged leptons (type-II model), just as in the minimal supersymmetric extension of the SM ...
6
Beyond two generations
... to top quarks, as well as heavy top partners ...the top quarks become boosted and their decay products are oftenly ...tagging top quarks and estimating the mass of their ...
8
Study of heavy flavor quarks produced in association with top quark pairs at s =7TeV using the ATLAS detector
... the top quark and the Higgs boson need to be measured with ...of top-quark pair ( t ¯ t ) events featuring additional heavy-flavor (HF) b and c quarks, t ¯ t þ b þ X and t ¯ t þ c þ X , referred to ...
24
Single top quark production in ATLAS at the LHC
... single top-quark ...Single top quarks o ↵ er the pos- sibility to search for new ...the top quark production and on CP violation in its decay as well as on the production of exotic b ⇤ ...
5
Deployment of a Matrix Element Method code for the ttH channel analysis on GPU’s platform
... Abstract. The observation of the associated production of the Higgs boson with two top quarks in proton-proton collisions is one of the highlights of the LHC Run 2. Driven by the theoretical description of ...
8
Estimation of the properties of quarks
... we need a three triplet model0 whose extra quantum number could be used to resolve our difficulty. All these are internal problems, the most obvious deficiency has been the apparent lack of experimental success in quark ...
117
Quarks in a Polar Model
... real particles correspond to the roots of the Bessel and Neumann functions in the same way. Since the Helmholtz equation describes particles (and, apparently, quarks) in their rest frames ( k 0 ), one can say ...
7
Fictionalism, Realism, Empiricism on Scientific Models
... on top of physical things does not seem too problematic, adding representational vehicles (including models) of physical things to that reality does seem ...
20