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相关论文: Diboson production at LHC with warped extra dimens…

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We re-analyze dijet production at hadron colliders (the Tevatron at Fermilab and the Large Hadron Collider, LHC, at CERN), to determine the potential limits on Planck mass in ADD type extra dimensional gravity scenarios. We try a variety of…

高能物理 - 唯象学 · 物理学 2007-05-23 M. A. Doncheski

Protons and antiprotons at collider energies are a source of high energy Weizsaecker--Williams photons. This opens up a possibility to study at the LHC exclusive photoproduction of heavy vector mesons at energies much larger than possible…

高能物理 - 唯象学 · 物理学 2014-11-20 A. Cisek , W. Schäfer , A. Szczurek

The top quark forward-backward asymmetry measured at the Fermilab Tevatron collider deviates from the standard model prediction. A W^prime boson model is described, where the coupling W^prime-t-d is fixed by the tt_bar forward-backward…

高能物理 - 唯象学 · 物理学 2015-06-04 Daniel Duffty , Zack Sullivan , Hao Zhang

We show that the addition of detectors to tag the outgoing forward protons, at the LHC, will significantly enlarge the potential of studying New Physics. A topical example is Higgs production by the exclusive double-diffractive process, pp…

高能物理 - 唯象学 · 物理学 2017-08-23 V. A. Khoze , A. B. Kaidalov , A. D. Martin , M. G. Ryskin , W. J. Stirling

The extraction of the W-boson mass, a fundamental parameter of the Standard Model, from hadron-hadron collision requires precise theory predictions. In this regard, angular coefficients are crucial to model the dynamics of W-boson…

高能物理 - 唯象学 · 物理学 2022-08-24 Mathieu Pellen , Rene Poncelet , Andrei Popescu , Timea Vitos

A measurement is performed of the cross section of top quark pair production in association with a W or Z boson using proton-proton collisions at a center-of-mass energy of 13 TeV at the LHC. The data sample corresponds to an integrated…

高能物理 - 实验 · 物理学 2018-08-16 CMS Collaboration

Forward top production is observed, in the ${\mu}+b$ final state, with the 3 fb$^{-1}$ Run I dataset collected by the LHCb detector. The combined cross-section for $t\bar{t}$ and single top production at $\sqrt{s}=7$ TeV and $\sqrt{s}=8$…

高能物理 - 实验 · 物理学 2016-03-01 Stephen Farry

Theoretical predictions for $pp\to 2 \Upsilon+X$ cross section at $\sqrt{s}=8$ TeV for the LHCb and ATLAS kinematical conditions are obtained. A possibility to observe the new hypothetical particles containing two valence $b$-quarks and two…

高能物理 - 唯象学 · 物理学 2013-03-27 A. V. Berezhnoy , A. K. Likhoded , A. A. Novoselov

In this presentation I will concentrate on top quark physics, the W-boson mass and the possibility of discovering a light Higgs boson via associated production at the Fermilab Tevatron.

高能物理 - 唯象学 · 物理学 2009-10-30 Stephen Parke

In the presence of the T-parity violating Wess-Zumino-Witten (WZW) anomaly term, the otherwise stable heavy photon A_H in the Littlest Higgs model with T-parity (LHT) decays to either Standard Model (SM) gauge boson pairs, or to SM fermions…

高能物理 - 唯象学 · 物理学 2010-05-12 Satyanarayan Mukhopadhyay , Biswarup Mukhopadhyaya , Andreas Nyffeler

It has now become possible to observe appreciable numbers of hadronically produced lepton pairs in mass ranges where the contributions of the photon and $Z^0$ are comparable. Consequently, in the reaction $p \bar p \to \ell^- \ell^+ +…

高能物理 - 唯象学 · 物理学 2009-10-28 Jonathan L. Rosner

We use the current CMS and ATLAS data for the leptonic $pp \to WW, WZ$ channels to show that diboson production is, for a broad class of flavour models, already competitive with LEP-1 measurements for setting bounds on the dimension six…

高能物理 - 唯象学 · 物理学 2019-03-27 Christophe Grojean , Marc Montull , Marc Riembau

A number of LHC resonance search channels display an excess in the invariant mass region of 1.8 - 2.0 TeV. Among them is a $3.4\,\sigma$ excess in the fully hadronic decay of a pair of Standard Model electroweak gauge bosons, in addition to…

高能物理 - 唯象学 · 物理学 2015-11-13 Johann Brehmer , JoAnne Hewett , Joachim Kopp , Thomas Rizzo , Jamie Tattersall

In this paper, we present the next-to-leading order predictions for diphoton production in the ADD model, matched to the HERWIG parton shower using the MC@NLO formalism. A selection of the results is presented for d=2-6 extra dimensions,…

高能物理 - 唯象学 · 物理学 2015-06-11 R. Frederix , Manoj K. Mandal , Prakash Mathews , V. Ravindran , Satyajit Seth , P. Torrielli , M. Zaro

We consider the production at the LHC of exotic composite leptons of charge Q=+2e. Such states are allowed in composite models which contain extended isospin multiplets (Iw=1 and Iw=3/2). These doubly charged leptons couple with Standard…

高能物理 - 唯象学 · 物理学 2012-05-25 S. Biondini , O. Panella , G. Pancheri , Y. N. Srivastava , L. Fanò

We analyze the potential of the Fermilab Tevatron and CERN Large Hadron Collider (LHC) to study anomalous quartic vector--boson interactions (photon photon Z Z) and (photon photon W+ W-). Working in the framework of SU(2)_L X U(1)_Y chiral…

高能物理 - 唯象学 · 物理学 2009-10-31 O. J. P. Eboli , M. C. Gonzalez-Garcia , S. M. Lietti , S. F. Novaes

A measurement of $\textit{W}$ boson production in lead-lead collisions at $\sqrt{s_{\mathrm{NN}}}=$2.76 TeV is presented. It is based on the analysis of data collected with the ATLAS detector at the LHC in 2011 corresponding to an…

高能物理 - 实验 · 物理学 2015-01-27 ATLAS Collaboration

This paper is the second of the series of papers proposing dedicated strategies for precision measurements of the Standard Model parameters at the LHC. The common feature of these strategies is their robustness with respect to the…

高能物理 - 唯象学 · 物理学 2014-11-18 F. Fayette , M. W. Krasny , W. Placzek , A. Siodmok

We review two inter-related topics. First, we consider the behaviour of "soft" scattering observables, such as sigma_{tot}, dsigma_{el}/dt, dsigma_{SD}/dtdM^2, particle multiplicities etc., at high-energy proton-(anti)proton colliders. We…

高能物理 - 唯象学 · 物理学 2009-10-02 A. D. Martin , M. G. Ryskin , V. A. Khoze

A list of searches is presented for massive resonances decaying to WW, WZ, ZZ, WH, ZH and HH boson pairs in proton-proton collision data collected by the CMS experiment at the LHC. The data are taken at centre-of-mass energies of 13TeV,…

高能物理 - 实验 · 物理学 2017-10-17 Huang Huang
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