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We examine diffractive proton-proton scattering p p -> p X and photo- and electroproduction of \rho^0 mesons \gamma^(*) p -> \rho^0 X, where X denotes a proton or a final state, into which the proton can go by diffractive dissociation.…

High Energy Physics - Phenomenology · Physics 2008-11-26 H. G. Dosch , O. Nachtmann , T. Paulus , S. Weinstock

We discuss diphoton semi(exclusive) production in ultraperipheral $PbPb$ collisions at energy of $\sqrt{s_{NN}}=$ 5.5 TeV (LHC). The nuclear calculations are based on equivalent photon approximation in the impact parameter space. The cross…

Nuclear Theory · Physics 2017-04-05 Antoni Szczurek , Mariola Klusek-Gawenda , Piotr Lebiedowicz , Wolfgang Schäfer

In this letter, I present the motivation and an example analysis method for discovering the elastic production of top-quark pairs at the LHC using forward proton tags, including an overview of the current theoretical tools and experimental…

High Energy Physics - Phenomenology · Physics 2020-08-11 James Howarth

We calculate the leading twist contribution to near-forward proton-proton (and proton-antiproton) elastic scattering with large momentum transfer, in the multiple scattering (Landshoff) mechanism. The amplitude in the near-forward region is…

High Energy Physics - Phenomenology · Physics 2014-11-17 Michael G. Sotiropoulos , George Sterman

We describe a new and model-independent L\'evy imaging method of quality fits to the published datasets and reconstruct the amplitude of high-energy $pp$ and $p\bar p$ elastic scattering processes. This method allows us to determine the…

High Energy Physics - Phenomenology · Physics 2020-02-14 T. Csorgo , R. Pasechnik , A. Ster

Inclusive four-jet events produced in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 7$ TeV are analysed for the presence of hard double-parton scattering using data corresponding to an integrated luminosity of 37.3…

High Energy Physics - Experiment · Physics 2016-11-30 ATLAS Collaboration

Elastic scattering amplitudes dominated by the Pomeron singularity which obey the principal unitarity bounds at high energies are constructed and analyzed. Confronting the models of double and triple (at $t=0$) Pomeron pole (supplemented by…

High Energy Physics - Phenomenology · Physics 2008-11-26 E. Martynov

The scaling rules of the invariant yields and cross sections for hard scattering processes in proton-nucleus ($pA$) and nucleus-nucleus ($AB$) reactions at LHC energies relative to those of nucleon-nucleon $NN$ (isospin averaged $pp$)…

Nuclear Experiment · Physics 2007-05-23 D. d'Enterria

We make a detailed eikonal fit to current data on the total and elastic scattering cross sections, the ratios $\rho$ of the real to the imaginary parts of the forward elastic scattering amplitudes, and the logarithmic slopes $B$ of the…

High Energy Physics - Phenomenology · Physics 2015-07-15 Martin M. Block , Loyal Durand , Phuoc Ha , Francis Halzen

The deuteron-proton elastic scattering has been studied in the multiple scattering expansion formalism. The essential attention has been given to such relativistic problem as a deuteron wave function in a moving frame and transformation of…

Nuclear Theory · Physics 2009-01-26 N. B. Ladygina

Electron scattering on unstable nuclei is planned in future facilities of the GSI and RIKEN upgrades. Motivated by this fact, we study theoretical predictions for elastic electron scattering in the N=82, N=50, and N=14 isotonic chains from…

Nuclear Theory · Physics 2013-01-10 X. Roca-Maza , M. Centelles , F. Salvat , X. Viñas

This dissertation investigated selected processes involving baryons and nuclei in hard scattering reactions. Through these processes, this work explored the constituent structure of baryons and the mechanisms through which the interactions…

Nuclear Theory · Physics 2011-08-26 Carlos G. Granados

Proton elastic scattering and inelastic scattering to the first excited state of 6He have been measured over a wide angular range using a 40.9A MeV 6He beam. The data have been analyzed with a fully microscopic model of proton-nucleus…

We discuss a recently proposed interpretation of some model descriptions of the proton-proton elastic scattering data as a manifestation of alleged relative transparency of the central part of the interaction region in the impact parameter…

High Energy Physics - Phenomenology · Physics 2018-06-15 V. A. Petrov , A. P. Samokhin

We study the elastic scattering of polarized protons from He isotopes. The central and spin-orbit parts of the optical potential are derived using the Glauber theory that can naturally take account of the breakup effect of the He isotopes.…

Nuclear Theory · Physics 2012-10-17 K. Kaki , Y. Suzuki , R. B. Wiringa

A electron of mass $m$, when electrically scatters of nucleus, of mass $M$, transfers momentum $q$ to the nucleus. The energy lost by electron is more than the energy gained by the nucleus. The resulting energy goes in exciting the atom to…

Quantum Physics · Physics 2023-09-20 Navin Khaneja

The hadronic quark structure is investigated in the frame of high energy electron proton scattering. A phenomenological model based on the Born approximation is used to calculate the transition matrix element for the quark system forming…

High Energy Physics - Phenomenology · Physics 2008-02-03 M. T. Hussein , N. M. Hassan

We analyse the recent LHC data at 7 and 8 TeV for pp elastic scattering with special attention for the structure of the real part, which is shown to be crucial to describe the differential cross section in the forward region. We determine…

High Energy Physics - Phenomenology · Physics 2017-10-30 A. K. Kohara , E. Ferreira , T. Kodama , M. Rangel

Background: Elastic scattering is probably the main event in the interactions of nucleons with nuclei. Even if this process has been extensively studied in the last years, a consistent description, i.e., starting from microscopic two- and…

Nuclear Theory · Physics 2017-11-22 M. Vorabbi , P. Finelli , C. Giusti

Deuteron-proton elastic scattering is considered at the energies from 880 MeV to 2 GeV at the scattering angles $\theta^*\ge 140^\circ$. The multiple-scattering method is used to calculate the reaction amplitude. Four reaction mechanisms…

Nuclear Theory · Physics 2024-07-02 Nadezhda Ladygina