English
Related papers

Related papers: ISR and IFI in Precision AFB Studies with KKMC-hh

200 papers

KKMC-hh is a precision event-generator for Z production and decay in hadronic collisions, which applies amplitude-level exponentiation to both initial and final state photon radiation, including perturbative residuals through order…

High Energy Physics - Phenomenology · Physics 2018-02-06 S. A. Yost , S. Jadach , B. F. L. Ward , Z. Was

Continuing with our investigations of the expected sizes of multiple photon radiative effects in heavy gauge boson production with decay to charged lepton pairs in the context of the precision physics of the LHC, using \KK{MC}-hh 4.22 we…

High Energy Physics - Phenomenology · Physics 2021-08-02 S. Jadach , B. F. L. Ward , S. A. Yost , Z. A. Was

We describe the program KKMC-hh, which calculates Z boson processes in hadronic collisions using coherent exclusive exponentiation (CEEX) with exact second-order photonic corrections at next-to-leading log and first-order weak vertex…

High Energy Physics - Phenomenology · Physics 2021-01-27 Scott A. Yost , Matthew Dittrich , Stanislaw Jadach , B. F. L. Ward , Zbigniew Wąs

KKMChh is a precision Monte Carlo program for photonic and electroweak radiative corrections to hadron scattering, implementing the amplitude-level exponentiation originally developed for electron-positron scattering at the quark level,…

High Energy Physics - Phenomenology · Physics 2025-01-06 Scott A. Yost , B. F. L. Ward , Zbigniew Wąs

${\cal KK}$MC-hh is a precision event-generator for Z production and decay in hadronic collisions, which applies amplitude-level resummation to both initial and final state photon radiation, including perturbative residuals exact through…

High Energy Physics - Phenomenology · Physics 2018-11-26 B. F. L. Ward , S. Jadach , Z. Was , S. A. Yost

KKMChh adapts the soft photon exponentiation of the program KKMC, initially for electron-positron annihilation, to hadron collisions, where it must interface to a parton shower and parton distribution functions (PDFs) which may already…

High Energy Physics - Phenomenology · Physics 2026-03-09 Scott A. Yost , B. F. L. Ward , Zbigniew Was

We evaluate the QED corrections due to initial state radiation (ISR) to associated Higgs boson production in electron-positron ($e^+ e^-$) annihilation at typical energies of interest for the measurement of the Higgs properties at future…

High Energy Physics - Phenomenology · Physics 2018-01-17 Mario Greco , Guido Montagna , Oreste Nicrosini , Fulvio Piccinini , Gabriele Volpi

KKMChh adapts the CEEX (Coherent Exclusive Exponentiation) formalism of the Monte Carlo Program KKMC for Z boson production and decay to hadron scattering. Amplitude-level soft photon exponentiation of initial and final state radiation,…

High Energy Physics - Phenomenology · Physics 2022-12-02 S. A. Yost , S. Jadach , B. F. L. Ward , Z. Wąs

Initial state radiation (ISR) plays an important role in $e^+$$e^-$ collision experiments such as the BESIII. To correct the ISR effects in measurements of hadronic cross-sections of $e^+e^-$ annihilation, an iterative method that weights…

High Energy Physics - Experiment · Physics 2021-05-10 Wenyu Sun , Tong Liu , Maoqiang Jing , Liangliang Wang , Bin Zhong , Weimin Song

An essential part of high-energy hadronic collisions is the soft hadronic activity that underlies the primary hard interaction. It includes soft radiation from the primary hard partons, secondary multiple parton interactions (MPI), and…

High Energy Physics - Phenomenology · Physics 2015-03-11 Iain W. Stewart , Frank J. Tackmann , Wouter J. Waalewijn

The status of analysis of processes with hard photon emitted from the initial state (ISR) at BABAR is presented. We tag events by the presence of a hard photon in the detector, then reconstruct mu+mu- and several exclusive hadronic final…

High Energy Physics - Experiment · Physics 2007-05-23 F. Anulli

With an eye toward the precision physics of the LHC, such as the recent measurement of $M_W$ by the ATLAS Collaboration, we present here systematic studies relevant to the assessment of the expected size of multiple photon radiative effects…

High Energy Physics - Phenomenology · Physics 2019-05-08 S. Jadach , B. F. L. Ward , Z. A. Was , S. A. Yost

At the LHC and Tevatron strong initial-state radiation (ISR) plays an important role. It can significantly affect the partonic luminosity available to the hard interaction or contaminate a signal with additional jets and soft radiation. An…

High Energy Physics - Phenomenology · Physics 2011-02-02 Iain W. Stewart , Frank J. Tackmann , Wouter J. Waalewijn

Electroweak Precision Measurements are stringent tests of the Standard Model and sensitive probes to New Physics. Accurate studies of the Z-boson couplings to the first-generation quarks could reveal potential discrepancies between the…

High Energy Physics - Phenomenology · Physics 2024-06-07 Krzysztof Mękała , Daniel Jeans , Junping Tian , Jürgen Reuter , Aleksander Filip Żarnecki

The investigation of events with Initial State Radiation (ISR) and subsequent Radiative Return has become an impressively successful and guiding tool in low and intermediate energy hadron physics with electron positron colliders: it allows…

High Energy Physics - Experiment · Physics 2008-11-07 W. Kluge

Initial State Radiation (ISR) effect is implemented in Madgraph using photon structure functions. Detailed examinations are performed against other generators including Whizard, BabayagaNLO and KKMC, for various physics processes at linear…

High Energy Physics - Phenomenology · Physics 2018-04-12 Qiang Li , Qi-Shu Yan

The mass distribution of jets produced in hard processes at the LHC plays an important role in several jet substructure related studies involving both Standard Model and BSM physics, especially in the context of boosted heavy particle…

High Energy Physics - Phenomenology · Physics 2012-12-18 Mrinal Dasgupta , Kamel Khelifa-Kerfa , Simone Marzani , Michael Spannowsky

The production of vector bosons at present and future hadron colliders will provide a crucial test for QCD and Standard Model physics. In this paper we improve parton shower simulations of Drell-Yan processes by implementing matrix-element…

High Energy Physics - Phenomenology · Physics 2009-10-31 Gennaro Corcella , Michael H. Seymour

An exclusive event generator is designed for the $e^+e^-$ scan experiments with the initial state radiation effects up to the second order correction included. There are seventy hadronic decay modes available with the effective…

High Energy Physics - Phenomenology · Physics 2015-06-17 Rong-Gang Ping

We present a complete calculation of the electroweak O(alpha^3 alpha_s) corrections to three-jet production and related event-shape observables at electron--positron colliders. The Z-boson resonance is described within the complex-mass…

High Energy Physics - Phenomenology · Physics 2014-11-20 Ansgar Denner , Stefan Dittmaier , Thomas Gehrmann , Christian Kurz
‹ Prev 1 2 3 10 Next ›