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相关论文: Azimuthal Angular Correlation as a Boosted Top Jet…

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We put forward a method to tune the polarisation state of decaying heavy particles (top quarks and $W/Z$ bosons) in a pre-existing Monte Carlo sample. With this technique, dubbed as `custom angle replacement', the decay angular…

高能物理 - 唯象学 · 物理学 2022-12-21 J. A. Aguilar-Saavedra

The azimuthal correlation, $\Delta \phi_{12}$, of high transverse momentum jets in pp collisions at $\sqrt{s}=13$ TeV is studied by applying PB-TMD distributions to NLO calculations via MCatNLO together with the PB-TMD parton shower. A very…

The sea quark contribution to the nucleon spin is an important piece for a complete understanding of the nucleon spin structure. The production of W bosons in longitudinally polarized $p + p$ collisions at RHIC provides an unique probe for…

高能物理 - 实验 · 物理学 2017-09-22 Qinghua Xu

In searches for new physics in the energy regime of the LHC, it is becoming increasingly important to distinguish single-jet objects that originate from the merging of the decay products of W bosons produced with high transverse momenta…

高能物理 - 实验 · 物理学 2014-12-10 CMS Collaboration

We construct jet observables for energetic top quarks that can be used to determine a short distance top quark mass from reconstruction in e+ e- collisions with accuracy better than Lambda_{QCD}. Using a sequence of effective field theories…

高能物理 - 唯象学 · 物理学 2008-11-26 Sean Fleming , Andre H. Hoang , Sonny Mantry , Iain W. Stewart

PHENIX has measured many different two-particle azimuthal correlations in several different colliding systems, beam energies, $p_{T}$ windows, etc. The initial striking results from the first full energy Au+Au run have been confirmed, i.e.…

核实验 · 物理学 2019-08-14 N. Grau

We present a search for standard model Higgs boson production in association with a W boson in proton-antiproton collisions at a center of mass energy of 1.96 TeV. The search employs data collected with the CDF II detector that correspond…

高能物理 - 实验 · 物理学 2009-09-30 CDF Collaboration , T. Aaltonen

The vacuum polarization functions $\Pi(q^2)$ of charged and neutral gauge bosons which arise from top and bottom quark loops lead to important shifts in relations between electroweak parameters which can be measured with ever-increasing…

高能物理 - 唯象学 · 物理学 2009-10-28 K. G. Chetyrkin , J. H. Kuehn , M. Steinhauser

Two-point correlation functions of cosmic microwave background polarization provide a physically independent probe of the surprising suppression of correlations in the cosmic microwave background temperature anisotropies at large angular…

宇宙学与河外天体物理 · 物理学 2015-06-17 Amanda Yoho , Simone Aiola , Craig J. Copi , Arthur Kosowsky , Glenn D. Starkman

We evaluate the constraints on anomalous trilinear gauge-boson couplings that can be obtained from the study of electron-positron annihilation into $W$ pairs at a facility with either the electron beam longitudinally polarized or both…

高能物理 - 唯象学 · 物理学 2009-10-28 V. V. Andreev , A. A. Pankov , N. Paver

The cross section for jets from b quarks produced with a W boson has been measured in ppbar collision data from 1.9/fb of integrated luminosity recorded by the CDF II detector at the Tevatron. The W+b-jets process poses a significant…

高能物理 - 实验 · 物理学 2010-05-12 The CDF Collaboration , T. Aaltonen

This paper describes a study of techniques for identifying Higgs bosons at high transverse momenta decaying into bottom-quark pairs, $H \rightarrow b\bar{b}$, for proton-proton collision data collected by the ATLAS detector at the Large…

高能物理 - 实验 · 物理学 2019-11-18 ATLAS Collaboration

If there is new physics associated with the top quark, it could show up as anomalous couplings of the top quark to weak gauge bosons, such as $Z\ttbar$ and $W\tbbar$ vector and axial-vector couplings. We use the processes $\ttbar\to…

高能物理 - 唯象学 · 物理学 2009-10-28 M. Hosch , K. Whisnant , Bing-Lin Young

We investigate the possibility that the W+4 jets background is a source of the anomalously large top-antitop (t\={t}) charge asymmetry observed at the Tevatron. We simulate the t\={t} reconstruction of the signal and background events at…

高能物理 - 唯象学 · 物理学 2012-05-24 Kaoru Hagiwara , Junichi Kanzaki , Yoshitaro Takaesu

A search for new charged massive gauge bosons, $W^\prime$, is performed with the ATLAS detector at the LHC. Data were collected in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV and correspond to an integrated…

高能物理 - 实验 · 物理学 2018-12-04 ATLAS Collaboration

Boosted resonances is a highly probable and enthusiastic scenario in any process probing the electroweak scale. Such objects when decaying into jets can easily blend with the cornucopia of jets from hard relative light QCD states. We review…

高能物理 - 唯象学 · 物理学 2015-05-30 Leandro G. Almeida , Raz Alon , Michael Spannowsky

An azimuthal angle correlation between the two hardest jets is studied in the ttbar production process at the 14 TeV LHC. The event samples are generated by merging the tree level matrix elements for the ttbar plus up to 2 or 3 partons with…

高能物理 - 唯象学 · 物理学 2015-08-10 Kaoru Hagiwara , Junya Nakamura

The measured forward-backward asymmetry in top pair events at the Fermilab Tevatron collider deviates significantly from the standard model expectation. Several models have been proposed to describe the observed asymmetry which grows with…

高能物理 - 唯象学 · 物理学 2012-10-25 Seyed Yaser Ayazi , Sara Khatibi , Mojtaba Mohammadi Najafabadi

We study the light quark effect on the Higgs boson production in association with a jet at the LHC in the intermediate transverse momentum region between the quark and the Higgs boson mass scales. Though the effect is suppressed by the…

高能物理 - 唯象学 · 物理学 2024-03-01 Tao Liu , Alexander A. Penin , Abdur Rehman

We report the results of a next-to-leading order simulation of top quark pair production in association with two jets. With our inclusive cuts, we show that the corrections with respect to leading order are negative and small, reaching 11%.…

高能物理 - 唯象学 · 物理学 2010-05-28 G. Bevilacqua , M. Czakon , C. G. Papadopoulos , M. Worek
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