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We propose a novel method to probe light-quark dipole moments by examining the azimuthal asymmetries between a collinear pair of hadrons in semi-inclusive deep inelastic lepton scattering off an unpolarized proton target at the Electron-Ion…

High Energy Physics - Phenomenology · Physics 2026-05-21 Xin-Kai Wen , Bin Yan , Zhite Yu , C. -P. Yuan

The ultralight dark photon is one of intriguing dark matter candidates. The interaction between the visible photon and dark photon is introduced by the gauge kinetic mixing between the field strength tensors of the Abelian gauge groups in…

High Energy Physics - Phenomenology · Physics 2025-02-26 Chang-Jie Dai , Tong Li , Rui-Jia Zhang

We compute dilepton invariant mass spectra from the decays of rho mesons produced by photon reactions off nuclei. Our calculations employ a realistic model for the rho photoproduction amplitude on the nucleon which provides fair agreement…

Nuclear Theory · Physics 2014-11-18 F. Riek , R. Rapp , T. -S. H. Lee , Yongseok Oh

The PHENIX experiment discovered a large excess of low-$p_{T}$ direct photons in Au+Au collisions at 200 GeV compared to reference p+p collisions, which has been attributed to thermal radiation from the medium produced in the collisions. At…

Nuclear Experiment · Physics 2017-08-29 Wenqing Fan

In this thesis, we present a comprehensive and pedagogical overview of dark matter (DM). Chapter 1 discusses the main evidences for its existence, its properties, and potential candidates. We then explore major detection strategies, with…

High Energy Physics - Phenomenology · Physics 2024-11-20 Jordan Koechler

We calculate leading-order medium photon and dilepton yields from a quark-gluon plasma using (3+1)-dimensional anisotropic hydrodynamics. In the case of dileptons, at leading-order it is sufficient to take into account non-equilibrium…

High Energy Physics - Phenomenology · Physics 2015-09-15 Lusaka Bhattacharya , Radoslaw Ryblewski , Michael Strickland

We discuss the mechanism of dilepton production in proton-proton scattering via fusion of virtual photons with identification of one proton on either side. This is relevant for the ATLAS+AFP and CMS+PPS at the LHC. Transverse momenta of the…

High Energy Physics - Phenomenology · Physics 2021-11-15 Antoni Szczurek , Barbara Linek , Marta Luszczak

The status of the measurements and the theoretical developments concerning the hadronic structure of the photon are briefly summarised.

High Energy Physics - Experiment · Physics 2009-11-07 Richard Nisius

I present recent results related to the measurement of the top quark mass, using $p\bar{p}$ collisions recorded with the D{\O}Detector at the Tevatron. The results are: A direct measurement of the mass difference between top and anti-top…

High Energy Physics - Experiment · Physics 2015-01-20 Daniel Boline

We present a comprehensive and pedagogic discussion of the properties of photons in cold and dense nuclear matter based on the resummed one-loop photon self energy. Correlations between electrons, muons, protons and neutrons in beta…

High Energy Astrophysical Phenomena · Physics 2018-04-18 Stephan Stetina , Ermal Rrapaj , Sanjay Reddy

I present preliminary results on the light quark masses from a partially quenched analysis of UKQCD's dynamical datasets.

High Energy Physics - Lattice · Physics 2015-06-25 D. J. Hepburn , UKQCD Collaboration

We review our most recent results on application of the photon subtraction technique for optical quantum information processing primitives, in particular entanglement distillation and generation of squeezed qubit states. As an introduction…

LEP offers an excellent opportunity to measure two photon processes over a large kinematical range and thus study the complex nature of the photon. This article reviews the experimental status of ``Two Photon Physics'' at LEP. The recent…

High Energy Physics - Experiment · Physics 2016-11-23 Maneesh Wadhwa

The OPAL experiment at LEP has performed a variety of measurements of photon-photon and electron-photon scattering at the electron-positron collider LEP to gain a deeper insight into the structure of the photon and its interactions. This…

High Energy Physics - Experiment · Physics 2007-05-23 Bernd Surrow

This contribution highlights recent results from the PHENIX Collaboration at RHIC with emphasis on those obtained through lepton and photon measurements in PHENIX.

Nuclear Experiment · Physics 2008-11-26 Terry C. Awes , PHENIX collaboration

The LEP experiments are making real progress in understanding the structure of the photon, though the results do not yet give such clear demonstrations of QCD in action as the proton structure has done. Other new results are reported,…

High Energy Physics - Experiment · Physics 2007-05-23 D. J. Miller

Direct photon production data at fixed target and collider experiments from $pp$ and $\bar{p}p$ collisions are analysed in NLO QCD. The results are grouped into three sets having $\sqrt{s}=20-30$ GeV, 630 GeV and 1.8 TeV. It is seen that at…

High Energy Physics - Phenomenology · Physics 2007-05-23 E. Quack , D. K. Srivastava

An overview is given of chiral symmetry restoration at finite temperature and baryochemical potential. Within hadronic models of the vector correlator its implications for low-mass dilepton spectra in ultrarelativistic heavy-ion collisions…

Nuclear Theory · Physics 2009-10-31 J. Wambach , R. Rapp

Recent results from ZEUS for inclusive jet cross sections, dijet cross sections and dijet angular distributions are compared with NLO perturbative QCD calculations. The observation of isolated high $P_T$ photons (prompt photons) is also…

High Energy Physics - Experiment · Physics 2009-10-30 R. L. Saunders

Two photon collisions offer a variety of physics studies that can be performed at the future electron-positron colliders. Using the planned CEPC parameters as a benchmark we consider several topics to be studied in the two-photon…

High Energy Physics - Phenomenology · Physics 2022-12-14 I. R. Boyko , V. V. Bytev , A. S. Zhemchugov