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The factorization theorem for organizing multiple electroweak boson emissions at future colliders with energy far above the electroweak scale is formulated. Taking the inclusive muon-pair production in electron-positron collisions as an…

高能物理 - 唯象学 · 物理学 2018-04-04 Yang-Ting Chien , Hsiang-nan Li

We present lattice QCD calculations of higher order cumulants of electric charge distributions for small baryon chemical potentials $\mu_B$ by using up to NNNLO Taylor expansions. Ratios of these cumulants are evaluated on the…

高能物理 - 格点 · 物理学 2020-10-30 D. Bollweg , J. Goswami , F. Karsch , S. Mukherjee , C. Schmidt

We report on a considerable improvement in the technique of measuring multiparticle correlations via integrals over correlation functions. A modification of measures used in the characterization of chaotic dynamical sytems permits fast and…

高能物理 - 唯象学 · 物理学 2009-10-22 H. C. Eggers , P. Lipa , P. Carruthers , B. Buschbeck

We present a systematic study on the influence of spatial correlations between the proton constituents, in our case gluonic hot spots, their size and their number on the symmetric cumulant SC(2,3), at the eccentricity level, within a Monte…

高能物理 - 唯象学 · 物理学 2019-02-20 Javier L. Albacete , Harri Niemi , Hannah Petersen , Alba Soto-Ontoso

Massive clumps tend to fragment into clusters of cores and condensations, some of which form high-mass stars. In this work, we study the structure of massive clumps at different scales, analyze the fragmentation process, and investigate the…

Measurements of flow harmonics $v_1-v_6$ are presented in a broad range of transverse momentum and centrality for $\sqrt{s_{NN}} = 2.76$ TeV Pb-Pb collisions with the ATLAS experiment. The fourier coefficients of two-particle correlations…

核实验 · 物理学 2019-08-21 Soumya Mohapatra

The study of multiparticle correlations and collectivity in the hot and dense matter created in collisions of heavy-ions as well as those of smaller systems such as proton--heavy-ion collisions has progressed to the point where detailed…

高能物理 - 唯象学 · 物理学 2018-01-31 K. Dusling , M. Mace , R. Venugopalan

The Dirac and Pauli form factors of the proton and neutron are obtained in the framework of the generalized parton distributions (GPDs) with some simple momentum transfer dependence. It is shown that both sets of the existing experimental…

高能物理 - 唯象学 · 物理学 2007-12-24 O. V. Selyugin , O. V. Teryaev

We consider proton decay in the testable flipped SU(5) X U(1)_X models with TeV-scale vector-like particles which can be realized in free fermionic string constructions and F-theory model building. We significantly improve upon the…

高能物理 - 唯象学 · 物理学 2015-05-14 Tianjun Li , Dimitri V. Nanopoulos , Joel W. Walker

We present the generalization of recently introduced observables for the studies of correlated fluctuations of different anisotropic flow amplitudes, dubbed Symmetric Cumulants. We introduce a new set of higher order observables and outline…

核实验 · 物理学 2020-08-19 Cindy Mordasini , Ante Bilandzic , Deniz Karakoç , Seyed Farid Taghavi

Leading order parton distributions in the photon are extracted from the existing $F_2^\gamma$ measurements and the low-$x$ proton structure function. The latter is related to the photon structure function by assuming Gribov factorization to…

高能物理 - 唯象学 · 物理学 2009-10-30 H. Abramowicz , E. Gurvich , A. Levy

We discuss the determination of polarized parton distributions from charged-current deep-inelastic scattering experiments. We summarize the next-to-leading order treatment of charged-current polarized structure functions, their relation to…

高能物理 - 唯象学 · 物理学 2009-10-08 Stefano Forte , Michelangelo L. Mangano , Giovanni Ridolfi

The observation of forward proton scattering in association with lepton pairs ($e^+e^-+p$ or $\mu^+\mu^-+p$) produced via photon fusion is presented. The scattered proton is detected by the ATLAS Forward Proton spectrometer while the…

高能物理 - 实验 · 物理学 2021-01-06 ATLAS Collaboration

A search for new phenomena in final states characterized by high jet multiplicity, an isolated lepton (electron or muon) and either zero or at least three $b$-tagged jets is presented. The search uses 36.1 fb$^{-1}$ of $\sqrt{s}$ = 13 TeV…

高能物理 - 实验 · 物理学 2017-09-28 ATLAS Collaboration

Assuming the proton's light-cone wave function to be dominated by small parton virtualities and small intrinsic transverse momenta, we show that the electroproduction amplitudes at large momentum transfer factorize into parton-level…

高能物理 - 唯象学 · 物理学 2011-09-13 H. W. Huang , P. Kroll

The Large Hadron Collider has provided large amounts of data on collisions of small systems, such as proton-proton and proton-lead at unprecedented collision energies. Their space-time size and structure can be inferred from the measurement…

Monte Carlo simulations of systems with a complex action are known to be extremely difficult. A new approach to this problem based on a factorization property of distribution functions of observables has been proposed recently. The method…

高能物理 - 格点 · 物理学 2010-02-03 J. Ambjorn , K. N. Anagnostopoulos , J. Nishimura , J. J. M. Verbaarschot

A measurement of event-shape variables is presented, using a data sample produced in a special run with approximately one inelastic proton-proton collision per bunch crossing. The data were collected with the CMS detector at a…

高能物理 - 实验 · 物理学 2025-12-16 CMS Collaboration

We first show that the pions produced at high $p_T$ in heavy-ion collisions over a wide range of high energies exhibit a scaling behavior when the distributions are plotted in terms of a scaling variable. We then use the recombination model…

核理论 · 物理学 2009-11-07 Rudolph C. Hwa , C. B. Yang

The dependence of multi-proton correlation functions and cumulants on the acceptance in rapidity and transverse momentum is studied. We find that the preliminary data of various cumulant ratios are consistent, within errors, with rapidity…

核理论 · 物理学 2017-11-22 Adam Bzdak , Volker Koch