From hard to soft diffraction and return
نویسندگان
چکیده
منابع مشابه
Pomeron flux renormalization in soft and hard diffraction
While the main features of elastic, diffractive and total cross sections are described well by Regge theory, the measured rise of the proton-(anti)proton single diffraction dissociation cross section with energy is considerably smaller than the theoretical prediction based on factorization and a constant triplepomeron coupling. The observed energy dependence is obtained by renormalizing the pom...
متن کاملar X iv : h ep - p h / 00 12 10 4 v 1 9 D ec 2 00 0 1 From hard to soft diffraction and return
The long standing mystery of smallness of diffractive dissociation of hadrons to large effective masses (the Pomeron-proton cross section is only 2 mb) witnesses that the gluonic clouds of valence quarks are so small (r0 = 0.3 f m) that soft interaction hardly resolves those gluons (diffraction is ∝ r 4 0). A color-dipole light-cone (LC) approach is developed which incorporates a strong nonpert...
متن کاملHuman walking isn't all hard work: evidence of soft tissue contributions to energy dissipation and return.
The muscles and tendons of the lower extremity are generally considered the dominant producers of positive and negative work during gait. However, soft-tissue deformations not captured by joint rotations might also dissipate, store and even return substantial energy to the body. A key locomotion event is the collision of the leg with the ground, which deforms soft tissues appreciably in running...
متن کاملHard Diffraction from Parton Rescattering in QCD
We analyze the QCD dynamics of diffractive deep inelastic scattering. The presence of a rapidity gap between the target and diffractive system requires that the target remnant emerges in a color singlet state, which we show is made possible by the soft rescattering of the struck quark. This rescattering is described by the path-ordered exponential (Wilson line) in the expression for the parton ...
متن کاملHard Diffraction From Quasi - Elastic Dipole Scattering
The contribution to diffraction dissociation of virtual photons due to quasi-elastic scattering of the q-¯ q component is calculated in the framework of the QCD dipole picture. Both longitudinal and transverse components of the cross-section are given. It is shown that, at fixed mass of the diffractively produced system, quantum mechanical interference plays an important rôle. Phenomenological ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nuclear Physics B - Proceedings Supplements
سال: 2001
ISSN: 0920-5632
DOI: 10.1016/s0920-5632(01)01302-0