中文
相关论文

相关论文: Testing CDF's Dijet Excess and Technicolor at the …

200 篇论文

The inclusive and fiducial $t\bar{t}$ production cross-sections are measured in the lepton+jets channel using 20.2 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 8 TeV recorded with the ATLAS detector at the LHC.…

高能物理 - 实验 · 物理学 2018-06-27 ATLAS Collaboration

The CMS collaboration reported an intriguing \sim 3 sigma (local) excess at 96 GeV in the light Higgs-boson search in the diphoton decay mode. This mass coincides with a \sim 2 sigma (local) excess in the bb final state at LEP. We briefly…

高能物理 - 唯象学 · 物理学 2021-09-22 T. Biekötter , M. Chakraborti , S. Heinemeyer

This paper intends to collect the various evidences observed by ATLAS and CMS within searches for heavy scalars and pseudocalars. These searches in tt, hZ, tautau and 2jets+W, obtain individual excesses in five channels, each at a modest…

高能物理 - 唯象学 · 物理学 2020-04-21 Francois Richard

Recent searches for a first-generation leptoquark by the CMS collaboration have shown around 2.5 sigma deviations from Standard Model predictions in both the eejj and e nu jj channels. Furthermore, the eejj invariant mass distribution has…

高能物理 - 唯象学 · 物理学 2015-05-20 Yang Bai , Joshua Berger

We investigate the Beyond Standard Model discovery potential in the framework of the Effective Field Theory (EFT) for the same-sign $WW$ scattering process in purely leptonic $W$ decay modes at the High-Luminosity and High-Energy phases of…

高能物理 - 唯象学 · 物理学 2020-03-24 Geetanjali Chaudhary , Jan Kalinowski , Manjit Kaur , Paweł Kozów , Kaur Sandeep , Michał Szleper , Sławomir Tkaczyk

We examine the `diboson' excess at $\sim 2$ TeV seen by the LHC experiments in various channels. We provide a comparison of the excess significances as a function of the mass of the tentative resonance and give the signal cross sections…

Double-differential dijet cross sections measured in pp collisions at the LHC with a 7 TeV centre-of-mass energy are presented as functions of dijet mass and rapidity separation of the two highest-pT jets. These measurements are obtained…

高能物理 - 实验 · 物理学 2014-08-25 ATLAS Collaboration

Motivated by what is possibly the first sign of new physics seen at the LHC, the diphoton excess at $750$ GeV in ATLAS and CMS, we present a model that provides naturally the necessary ingredients to explain the resonance. The simplest…

高能物理 - 唯象学 · 物理学 2016-06-13 Sofiane M. Boucenna , Stefano Morisi , Avelino Vicente

This thesis presents the evidence, at 3.08 sigma, for the associate production of massive vector bosons (W and Z) in a final state with one lepton, MET and HF-tagged jets, measured with the complete CDF II dataset (9.4fb^-1 of data). The…

高能物理 - 实验 · 物理学 2013-02-05 Federico Sforza

Many dark matter models involving weakly interacting massive particles (WIMPs) feature new, relatively light pseudoscalars that mediate dark matter pair annihilation into Standard Model fermions. In particular, simple models of this type…

高能物理 - 唯象学 · 物理学 2015-06-23 Jonathan Kozaczuk , Travis A. W. Martin

We adopt a bottom-up approach to constructing a new physics model to explain the CDF excess seen in dijets with an associated lepton and missing transverse energy. We find that the 145 GeV broad feature seen by CDF in the dijet invariant…

高能物理 - 唯象学 · 物理学 2011-06-07 Felix Yu

In this paper, we explore the potential of the LHC to measure the rate of $\mathrm{p}\mathrm{p}\rightarrow \mathrm{p}~ WW\gamma~\mathrm{p}$ process, also to probe the new effective couplings contributing to the $WW\gamma$ and…

高能物理 - 唯象学 · 物理学 2020-08-04 Seddigheh Tizchang , Seyed Mohsen Etesami

A new particle at around 125 GeV has been observed at the LHC, which we show could be identified with the techni-dilaton (TD) predicted in the walking technicolor and thus should be an evidence of walking technicolor. The TD is a pseudo…

高能物理 - 唯象学 · 物理学 2015-06-05 Shinya Matsuzaki , Koichi Yamawaki

The significance of discovering the boson of 750 GeV is beyond finding a single heavy boson, because it may hint the location of the scale for new physics beyond the standard model which is the target of long-time exploration. There have…

高能物理 - 唯象学 · 物理学 2016-05-16 Tai-Fu Feng , Xue-Qian Li , Hai-Bin Zhang , Shu-Min Zhao

We review the latest underlying event and minimum bias results and discuss the associated problematics with the idea of establishing a solid baseline for the LHC experiments. These measurements include study of the underlying event in…

高能物理 - 实验 · 物理学 2011-06-17 Christina Mesropian

The resonance $S$ at $\sim 750$ GeV in the diphoton channel observed by ATLAS and CMS, if it holds up, is almost certainly the ($S$)cion of a larger dynasty in a UV completion that may very well be connected to the hierarchy problem. At…

高能物理 - 唯象学 · 物理学 2016-04-20 Alexandre Alves , Alex G. Dias , Kuver Sinha

The recent observation by the CDF Collaboration of an excess in $W$ plus dijet events, where the dijet invariant mass shows a 3.2$\sigma$ peak around $144 \pm 5$ GeV, is shown to be consistent with the production of a radion $\Phi$ of mass…

高能物理 - 唯象学 · 物理学 2011-06-13 Biplob Bhattacherjee , Sreerup Raychaudhuri

The LHC has started to explore the TeV energy regime, probing the SM beyond LEP and Tevatron. We show how the dijet measurements at the LHC are able to test certain sectors of the SM at an unprecedented level. We provide the best bounds on…

高能物理 - 唯象学 · 物理学 2013-05-30 Oriol Domènech , Alex Pomarol , Javi Serra

We present a search for the technicolor particles $\rho_{T}$ and $\pi_{T}$ in the process $p\bar{p} \to \rho_{T} \to W\pi_{T}$ at a center of mass energy of $\sqrt{s}=1.96 \mathrm{TeV}$. The search uses a data sample corresponding to…

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

We customize the simulation code FEWZ (Fully Exclusive W, Z Production) to study Z' production at the LHC for both \sqrt{s}=8 TeV and 14 TeV. Using the results of our simulation for several standard benchmark Z' models, we derive a…

高能物理 - 唯象学 · 物理学 2013-01-25 Vernon Barger , Danny Marfatia , Andrea Peterson