English
Related papers

Related papers: Interpretation of the Color Transparency Experimen…

200 papers

In this paper we discuss a quantity that can be derived from the hadronic spectrum - the ratio between the color hyperfine splitting of a K meson and that of a Sigma baryon. It will be shown that within the constituent quark model this…

High Energy Physics - Phenomenology · Physics 2008-11-26 Boaz Keren-Zur

A multichannel evolution equation is developed for the density matrix describing a hadronic wave packet produced by a virtual photon and propagation through a nuclear matter. This approach is dual to the quark-gluon representation,…

High Energy Physics - Phenomenology · Physics 2011-04-15 J. Hüfner , B. Z. Kopeliovich

Color transparency is the vanishing of initial and final state interactions, predicted by QCD to occur in high momentum transfer quasielastic nuclear reactions. For specific reactions involving nucleons, the initial and final state…

Nuclear Theory · Physics 2016-09-08 L. Frankfurt , T-S. H. Lee , G. A. Miller , M. Strikman

A recent experiment [{\bf Phys. Rev. Lett. 126,082301 (2021)}] used the $(e,e'p)$ reaction on $^{12}$C to search for the effects of color transparency (the absence of final state interactions). Color transparency was said to be ruled out.…

Nuclear Theory · Physics 2021-07-21 Olivia Caplow-Munro , Gerald A. Miller

Coherent electroproduction of vector mesons off $^2$H and $^4$He is considered in the kinematics of deep inelastic scattering. Special emphasis is given to the $-t\sim 0.8-1$ GeV$^2$ region where the cross section is dominated by the…

High Energy Physics - Phenomenology · Physics 2007-05-23 L. Frankfurt , V. Guzey , W. Koepf , M. Sargsian , M. Strikman

This letter reports the nucleon-nucleon($NN$) interaction obtained from multi-channel, including hidden color channels, coupling quark model calculation. The results show that the hidden color channels coupling provides the intermediate…

Nuclear Theory · Physics 2009-03-26 Fan Wang , Jialun Ping , Hongxia Huang

In the current paper, we argue that the ground state of a hadron contains a significant perturbative quantum chromodynamics (pQCD) core as the result of color gauge invariance and of the values of chiral and gluon vacuum condensates. The…

High Energy Physics - Phenomenology · Physics 2022-10-24 Leonid Frankfurt , Mark Strikman

The light-front representation of quantum chromodynamics provides a frame-independent, quantum-mechanical representation of hadrons at the amplitude level, capable of encoding their multi-quark, hidden-color and gluon momentum, helicity,…

High Energy Physics - Phenomenology · Physics 2009-09-11 Stanley J. Brodsky

In hadronic collisions, the mini-jet cross section is formally divergent in the limit pT -> 0. We argue that this divergence is tamed by some effective colour correlation length scale of the hadron. A toy model of the hadronic structure is…

High Energy Physics - Phenomenology · Physics 2011-02-15 Johann Dischler , Torbjörn Sjöstrand

Previous work on color transparency is reviewed briefly with an emphasis on aspects related to an upgrade of CEBAF.

Nuclear Theory · Physics 2007-05-23 Gerald A. Miller

The deuteron disintegration at high energies and large angles in the $d(p,2p)n$ reaction, is calculated in kinematical conditions where the dominant contributions are due to soft rescatterings of the initial and final nucleons, which…

High Energy Physics - Phenomenology · Physics 2008-11-26 L. L. Frankfurt , E. Piasetzky , M. M. Sargsian , M. I. Strikman

I review hard photon initiated processes on nuclei. The space-time development of the DIS reaction as viewed in the target rest frame qualitatively describes the nuclear shadowing of quark and gluon distributions, although it may be…

High Energy Physics - Phenomenology · Physics 2007-05-23 Paul Hoyer

While quark-hadron duality is well-established experimentally, the current theoretical understanding of this important phenomenon is quite limited. To expose the essential features of the dynamics behind duality, we use a simple model in…

High Energy Physics - Phenomenology · Physics 2014-11-17 N. Isgur , S. Jeschonnek , W. Melnitchouk , J. W. Van Orden

The duality between partonic and hadronic descriptions of physical phenomena is one of the most remarkable features of strong interaction physics. A classic example of this is in electron-nucleon scattering, in which low-energy cross…

High Energy Physics - Phenomenology · Physics 2014-11-18 W. Melnitchouk , R. Ent , C. Keppel

We examine the potential of the COMPASS experiment at CERN to study color transparency via exclusive coherent vector meson production in hard muon-nucleus scattering. It is demonstrated that COMPASS has high sensitivity to test this…

High Energy Physics - Experiment · Physics 2008-11-26 Murray Moinester , Oleg A. Grajek , Eli Piasetzky , Andrzej Sandacz

Study of color transparency (CT) effects at moderate energies is more problematic than is usually supposed. Onset of CT can be imitated by other mechanisms, which contain no explicit QCD dynamics. In the case of the $(e,e'p)$ reaction the…

Nuclear Theory · Physics 2008-02-03 B. Z. Kopeliovich , J. Nemchik

Nuclear transparency in the (e,e'p) reaction for 135 < Tp < 800 MeV is investigated using the distorted wave approximation. Calculations using density-dependent effective interactions are compared with phenomenological optical potentials.…

Nuclear Theory · Physics 2008-11-26 James J. Kelly

The exclusive production of vector mesons in deep inelastic scattering is a hard scattering process with the well controlled size of quark configurations which dominate the production amplitude. This allows an unambiguous prediction of…

High Energy Physics - Phenomenology · Physics 2012-08-27 B. Z. Kopeliovich , J. Nemchick , N. N. Nikolaev , and B. G. Zakharov

Quasi-elastic scattering on $^{12}$C$(e,e'p)$ was measured in Hall C at Jefferson Lab for space-like 4-momentum transfer squared $Q^2$ in the range of 8--14.2\,(GeV/$c$)$^2$ with proton momenta up to 8.3\,GeV/$c$. The experiment was carried…

‹ Prev 1 3 4 5 6 7 10 Next ›