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Measurements of the ratio of the elastic form factors of the proton ($\mu_pG_E/G_M$) exhibit a strong discrepancy. Experiments using unpolarized beams and Rosenbluth separation to determine the form factors have found values of the ratio…

核实验 · 物理学 2022-09-21 Brian S. Henderson

A simple application of Regge theory, with 9 free parameters, provides a good fit to elastic scattering data at small t from 13.76 GeV to 13 TeV. It yields a value for rho, the ratio of the real part of the forward amplitude to its…

高能物理 - 唯象学 · 物理学 2019-10-16 A Donnachie , P V Landshoff

Starting from a simple empirical parametrization of the scattering amplitude, successfully describing the dip-bump structure of elastic $pp$ scattering in $t$ at fixed values of $s$, we construct a toy model interpolating between missing…

高能物理 - 唯象学 · 物理学 2015-04-22 Andras Ster , Laszlo Jenkovszky , Tamas Csorgo

The paper presents the phenomenological analysis of the energy dependence for the ratio of elastic to total cross section in proton-proton and antiproton-proton scattering. The analytic functions based on the study of low- and high-energy…

高能物理 - 唯象学 · 物理学 2019-04-11 V. A. Okorokov

We predict pp elastic differential cross section at LHC at the c.m. energy sqrt(s) = 14 TeV and momentum transfer range |t| = 0 - 10 GeV^2, which is planned to be measured by the TOTEM group. The field theory model underlying our…

高能物理 - 唯象学 · 物理学 2011-03-23 M. M. Islam , R. J. Luddy , A. V. Prokudin

Elastic scattering data gained for proton-proton collisions at high energies are being analyzed at the present practically only with the help of purely phenomenological mathematical models. And the question exists whether in the impact…

高能物理 - 唯象学 · 物理学 2009-09-18 Milos V. Lokajicek , V. Kundrat

Measurements of the proton's form factor ratio made with polarization transfer show a striking discrepancy relative to the ratio extracted from unpolarized elastic electron-proton scattering cross sections. One hypothesis is that the…

核实验 · 物理学 2021-11-16 Axel Schmidt

The simulation of transmission electron microscopy (TEM) images or diffraction patterns is often required to interpret their contrast and extract specimen features. This is especially true for high-resolution phase-contrast imaging of…

材料科学 · 物理学 2021-03-30 Jacob Madsen , Timothy J. Pennycook , Toma Susi

All contemporary phenomenological models of elastic hadronic scattering have been based on the assumption of validity of optical theorem that was overtaken from optics. It has been stated that it may be proven in particle physics. However,…

核理论 · 物理学 2015-02-03 Jiri Prochazka , Vojtech Kundrat , Milos V. Lokajicek

The role of low-$x$ parton dynamics in dictating the high-energy behavior of forward scattering observables at LHC energies is investigated using a QCD-based model with even-under-crossing amplitude dominance at high-energies. We explore…

高能物理 - 唯象学 · 物理学 2019-10-17 M. Broilo , D. A. Fagundes , E. G. S. Luna , M. J. Menon

A sum rule is derived for elastic scattering of hadrons at high energies which is in good agreement with experimental data on $p\bar{p}$ available upto the maximum energy $\sqrt{s} = 2 TeV$. Physically, our sum rule reflects the way…

高能物理 - 唯象学 · 物理学 2007-05-23 G. Pancheri , Y. Srivastava , N. Staffolani

Angular distributions of fluorine and oxygen produced from 170 MeV 17^F incident on 208^Pb were measured. The elastic scattering data are in good agreement with optical model calculations using a double-folding potential and parameters…

We report an unconventional temperature dependence of the resistivity in several strongly correlated systems approaching a localized to itinerant electronic transition from the itinerant electron side. The observed resistivity, proportioanl…

强关联电子 · 物理学 2009-11-10 F. Rivadulla , J. -S. Zhou , J. B. Goodenough

We study the elastic scattering time $\tau_\mathrm{s}$ of ultracold atoms propagating in optical disordered potentials in the strong scattering regime, going beyond the recent work of J. Richard \emph{et al.} \textit{Phys. Rev. Lett.}…

Experimental data on proton-proton interactions in high energy collisions show quite a special and unexpected behaviour of the proportion of elastic scattering compared to inelastic processes with increasing energy. It decreases at the…

高能物理 - 唯象学 · 物理学 2017-08-02 I. M. Dremin

The TOTEM collaboration at the CERN LHC has measured the differential cross-section of elastic proton-proton scattering at $\sqrt{s} = 8\ {\rm TeV}$ in the squared four-momentum transfer range $0.2\ {\rm GeV^{2}} < |t| < 1.9\ {\rm…

We investigate the physical properties of \textit{Fermi} TeV BL Lac objects jets by modeling the quasi-simultaneous spectral energy distribution of 29 \textit{Fermi} TeV BL Lacs in the frame of a one-zone leptonic synchrotron self-Compton…

高能天体物理现象 · 物理学 2016-09-28 N. Ding , X. Zhang , D. R. Xiong , H. J. Zhang

A model for elastic scattering of nucleons (and anti-nucleons) based on the quark-diquark representation of the nucleon with springy Pomeron, providing increased real part of the scattering amplitude, is developed. The model predictions are…

高能物理 - 唯象学 · 物理学 2014-04-24 V. M. Grichine

In this work the process of elastic hadron scattering is discussed. In particular, scattering amplitudes for the various Pomeron models are compared. In addition, differential elastic cross section as a function of the scattered proton…

高能物理 - 唯象学 · 物理学 2017-08-10 P. Erland , R. Staszewski , M. Trzebinski , R. Kycia

It is argued that the dynamics of the elastic scattering of high-energy protons at intermediate transferred momenta changes with the energy increase. It evolves from the multiple scattering at the external layer for energies about 10 GeV to…

高能物理 - 唯象学 · 物理学 2020-03-18 I. M. Dremin