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Dissipative processes in relativistic fluids are known to be important in the analyses of the hot QCD matter created in high-energy heavy-ion collisions. In this work, I consider dissipative corrections to energy and conserved charge…

Nuclear Theory · Physics 2018-10-08 Akihiko Monnai

The deuteron-proton elastic scattering is studied in the multiple scattering expansion formalism. The contributions of the one-nucleon-exchange, single- and double scattering are taken into account. The Love and Franey parameterization of…

Nuclear Theory · Physics 2009-11-05 N. B. Ladygina

We study the consequences of high-energy collider data on the best fits to total, elastic, and inelastic cross sections for $pp$ and $p\bar{p}$ scattering using two very distinct unitarisation schemes: the eikonal and the $U$-matrix.…

High Energy Physics - Phenomenology · Physics 2021-03-24 Atri Bhattacharya , Jean-René Cudell , Rami Oueslati , Arno Vanthieghem

The mass composition of ultra-high-energy cosmic rays is important for understanding their origin. Owing to our limited knowledge of the hadronic interaction, the interpretations of the mass composition from observations include several…

High Energy Astrophysical Phenomena · Physics 2021-04-06 Ken Ohashi , Hiroaki Menjo , Yoshitaka Itow , Takashi Sako , Katsuaki Kasahara

We analyse pp elastic scattering data at the highest accelerator energy region (between 10 and 63 GeV) through a multiple diffraction approach. The use of Martin's formula in a model developed earlier is substituted by the introduction of a…

High Energy Physics - Phenomenology · Physics 2009-10-30 A. F. Martini , M. J. Menon

The dependence of the subprocess cross section for dijet production at fixed transverse momentum on the (large) rapidity separation Delta y of the dijets can be used to test for `BFKL physics', i.e. the presence of higher--order (alphas…

High Energy Physics - Phenomenology · Physics 2009-10-31 Lynne H. Orr , W. J. Stirling

The cross sections for the production of hadrons in quasi-real photon-photon collisions in proton-proton and heavy ion interactions are compared with the corresponding cross sections for central diffraction and for photon-pomeron…

High Energy Physics - Phenomenology · Physics 2008-02-03 R. Engel , M. A. Braun , C. Pajares , J. Ranft

We study the sensitivity of the dilepton production cross section to higher twist terms. A method for calculating the resummed cross section is introduced in moment space, where the leading higher twist terms can be easily parametrized and…

High Energy Physics - Phenomenology · Physics 2009-09-25 Lyndon Alvero

We present a triple-Regge analysis of the available pp --> p + X high-energy data accounting for absorptive corrections. We describe a model for high-energy soft interactions which includes the whole set of multi-Pomeron (n --> m) vertices,…

High Energy Physics - Phenomenology · Physics 2008-10-21 V. A. Khoze , A. D. Martin , M. G. Ryskin

A fully relativistic model for the description of exclusive (e,e'p) reactions off nuclear targets at high energies and momentum transfers is outlined. It is based on the eikonal approximation for the ejectile scattering wave function and a…

Nuclear Theory · Physics 2016-09-08 D. Debruyne , J. Ryckebusch , W. Van Nespen , S. Janssen

A phenomenological analysis of diffractive dissociation of nuclei in proton-nucleus and meson-nucleus collisions is presented. The theoretical approach employed here is able to take into account at once data of the HELIOS and EHS/NA22…

Nuclear Theory · Physics 2009-11-06 M. Batista , R. J. M. Covolan , A. N. Pontes

Multi Pomeron interactions are the main source of high mass diffraction. Their role in high energy dynamics greatly influences the predictions for high energy cross sections and survival probabilities of hard diffraction channels, notably,…

High Energy Physics - Phenomenology · Physics 2009-03-03 E. Gotsman , E. Levin , U. Maor , J. S. Miller

We report a new measurement of the pseudorapidity (eta) and transverse- energy (Et) dependence of the inclusive jet production cross section in pbar p collisions at sqrt(s)=1.8 TeV using 95 pb**-1 of data collected with the D0 detector at…

High Energy Physics - Experiment · Physics 2019-08-14 Levan Babukhadia

The otherwise exponential high-energy proton-proton diffraction cone has two prominent structures, which are namely the "break" staying fixed around $t \approx -0.1$ GeV$^2$ and the "dip" moving with increasing energy logarithmically…

High Energy Physics - Phenomenology · Physics 2017-11-15 István Szanyi

We study the hard color dipole-nucleon cross section within perturbative QCD and discuss its relation to observables in diffractive leptoproduction of heavy quarkonium. The dipole cross section calculated with the unintegrated gluon density…

High Energy Physics - Phenomenology · Physics 2009-10-31 Katsuhiko Suzuki , Kazunori Itakura

The measurement of the triple-differential dijet production cross section as a function of the average transverse momentum $p_{T,\textrm{avg}}$, half the rapidity separation $y^{*}$, and the boost $y_{b}$ of the two leading jets in the…

High Energy Physics - Phenomenology · Physics 2019-10-04 Aude Gehrmann-De Ridder , Thomas Gehrmann , E. W. N. Glover , Alexander Huss , Joao Pires

The hadronic invariant mass distribution for the process of electron-positron annihilation into a pair of charged pions accompanied by a photon radiated from the initial state has been studied for the region of DA$\Phi$NE energies. The Born…

High Energy Physics - Phenomenology · Physics 2009-01-07 V. A. Khoze , M. I. Konchatnij , N. P. Merenkov , G. Pancheri , L. Trentadue , O. N. Shekhovzova

Relativistic effects in the breakup of weakly-bound nuclei at intermediate energies are studied by means of the continuum-discretized coupled-channels method with eikonal approximation. Nuclear coupling potentials with Lorentz contraction…

Nuclear Theory · Physics 2009-07-03 K. Ogata , C. A. Bertulani

We calculate the strong radiative corrections to the process p pbar -> W(->e nu) g^*(->b bbar). At the Tevatron this process is the largest background to the associated Higgs boson production p pbar -> W(-> e nu) H(-> b bbar). The…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. K. Ellis , S. Veseli

The diffractive dissociation of a hadron at high energies, by either Coulomb or Pomeron exchange, has a natural description in QCD as the materialization of the projectile's light-cone wavefunctions; in particular, the diffractive…

High Energy Physics - Phenomenology · Physics 2007-05-23 Stanley J. Brodsky