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We compute the production cross section of a top-antitop pair in association with a jet at hadron colliders at next-to-leading order accuracy matched with parton shower algorithms to make predictions at the hadron level. The parton shower…

高能物理 - 唯象学 · 物理学 2015-03-17 Adam Kardos , Costas Papadopoulos , Zoltan Trocsanyi

Insight into the electroweak (EW) and Higgs sectors can be achieved through measurements of vector boson scattering (VBS) processes. The scattering of EW bosons are rare processes that are precisely predicted in the Standard Model (SM) and…

After the discovery of the Higgs boson at the LHC, it is natural to start the research program on the precision study of the Higgs-boson couplings to various standard model (SM) particles. We provide a generic framework for the deviations…

高能物理 - 唯象学 · 物理学 2015-06-15 Kingman Cheung , Jae Sik Lee , Po-Yan Tseng

We compare theoretical results for jet and prompt photon production in polarized pp-collisions at RHIC obained with three different methods: a) the unpolarized event generator PYTHIA combined with hadronic asymmetry weights calculated from…

高能物理 - 唯象学 · 物理学 2007-05-23 O. Martin , A. Schafer

Reframing certain well-known particle models in terms of normed division algebras leads to two new results for BSM physics. (1) We identify a sequence of complex structures which induces a cascade of breaking symmetries: Spin(10) $\mapsto$…

高能物理 - 唯象学 · 物理学 2022-10-20 N. Furey , M. J. Hughes

Beam-splitter operations are an indispensable resource for processing quantum information encoded in bosonic modes. However, in hybrid quantum systems, it can be challenging to implement reliable beam-splitters between two distinct bosonic…

量子物理 · 物理学 2021-12-16 Mengzhen Zhang , Shoumik Chowdhury , Liang Jiang

We make the connection between certain deep learning architectures and the renormalisation group explicit in the context of QCD by using a deep learning network to construct a toy parton shower model. The model aims to describe…

高能物理 - 唯象学 · 物理学 2018-12-26 James William Monk

We calculate the fiducial and differential $W^{\pm}/Z^0+jet(s)$ production cross-sections in the presence of electroweak (EW) corrections through virtual loop contributions to the matrix elements (MEs) of the processes and real partonic…

高能物理 - 唯象学 · 物理学 2022-11-29 Neda Darvishi , M. R. Masouminia

A framework is presented for including second-order perturbative corrections to the radiation patterns of parton showers. The formalism allows to combine O(alphaS^2)-corrected iterated 2->3 kernels for "ordered" gluon emissions with…

高能物理 - 唯象学 · 物理学 2025-05-20 Hai Tao Li , Peter Skands

The pair production of squarks is one of the main search channels for supersymmetry at the LHC. We present a fully differential calculation of the next-to-leading order (NLO) SUSY-QCD corrections to the on-shell production of a pair of…

高能物理 - 唯象学 · 物理学 2014-02-17 Ryan Gavin , Christian Hangst , Michael Krämer , Margarete Mühlleitner , Mathieu Pellen , Eva Popenda , Michael Spira

We consider the Higgsstrahlung process in hadronic collisions and present the computation of next-to-next-to-leading order predictions matched to parton showers for both production and $H\to b\bar{b}$ decay employing the MiNNLO$_{\rm PS}$…

高能物理 - 唯象学 · 物理学 2022-07-06 Silvia Zanoli , Mauro Chiesa , Emanuele Re , Marius Wiesemann , Giulia Zanderighi

We study integrated and differential rates for the production of charged Higgs bosons $H^\pm$ of the Minimal Supersymmetric Standard Model via b-quark initiated subprocesses in pp collisions at the Large Hadron Collider. In detail, we…

高能物理 - 唯象学 · 物理学 2016-09-06 S. Moretti , K. Odagiri

In a previous paper, hereafter referred to as I, we have analyzed the 7 TeV LHC data on W + jets events from the standpoint of IR-improved DGLAP parton shower effects, using the IR-improved Herwiri1.031 parton shower MC in comparison with…

高能物理 - 唯象学 · 物理学 2020-11-18 B. Shakerin , B. F. L. Ward

We report on our exploration of matching matrix element calculations with the parton-shower models contained in the event generators HERWIG and Pythia. We describe results for e+e- collisions and for the hadroproduction of W bosons and…

高能物理 - 唯象学 · 物理学 2011-05-05 Stephen Mrenna , Peter Richardson

We formulate a collinear partonic shower algorithm that achieves next-to-single-logarithmic (NSL, $\alpha_s^n L^{n-1}$) accuracy for collinear-sensitive non-singlet fragmentation observables. This entails the development of an algorithm for…

To search for ultra-high-energy photons in primary cosmic rays, air shower observables are needed that allow a good separation between primary photons and primary hadrons. We present a new observable, $F_\gamma$, which can be extracted from…

高能天体物理现象 · 物理学 2017-11-22 M. Niechciol , M. Risse , P. Ruehl , M. Settimo , P. W. Younk , A. Yushkov

We perform a comprehensive global analysis in the Minimal Supersymmetric Standard Model (MSSM) as well as in the 2-Higgs Doublet Model (2HDM) of the production and decay mechanisms of charged Higgs bosons $(H^\pm)$ at the Large Hadron…

高能物理 - 唯象学 · 物理学 2020-03-20 Abdesslam Arhrib , Rachid Benbrik , Hicham Harouiz , Stefano Moretti , Abdessamad Rouchad

In this short note, I introduce to essential conceptual features and main building blocks of matrix element merging algorithms, operating on fixed order calculations both at leading order and next-to-leading order. The intention is purely…

高能物理 - 唯象学 · 物理学 2015-03-30 Thomas Rössler

A major new release of the Monte Carlo event generator Herwig++ (version 3.0) is now available. This release marks the end of distinguishing Herwig++ and HERWIG development and therefore constitutes the first major release of version 7 of…

In the context of Monte Carlo (MC) generators with parton showers that have next-to-leading-logarithmic (NLL) precision, the cutoff $Q_0$ terminating the shower evolution should be viewed as an infrared factorization scale so that…

高能物理 - 唯象学 · 物理学 2025-06-25 André H. Hoang , Oliver L. Jin , Simon Plätzer , Daniel Samitz