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We point out some serious problems in the investigation of Kundu et al. which claims agreement with the existing data of the proton form factor, calculated without taking into account the intrinsic k_{perp}-dependence of the proton wave function.
Externí odkaz:
http://arxiv.org/abs/hep-ph/9807328
Publikováno v:
Phys.Lett. B392 (1997) 198-206
We investigate the theoretical uncertainties of $P$-wave charmonium decays into two pions, $\chi_{\c J}\rightarrow \pi^+\pi^-$, $\pi^0\pi^0$. Constraining the pion distribution-amplitude from the recent precise data on $F_{\pi\gamma}(Q^2)$, we find a
Externí odkaz:
http://arxiv.org/abs/hep-ph/9610265
Publikováno v:
Z.Phys. A356 (1996) 327
Current light-cone wave functions for the nucleon are unsatisfactory since they are in conflict with the data of the nucleon's Dirac form factor at large momentum transfer. Therefore, we attempt a determination of a new wave function respecting theor
Externí odkaz:
http://arxiv.org/abs/hep-ph/9603289
Publikováno v:
Phys.Lett.B342:345-350,1995
Two recently proposed concepts to improve the perturbative calculation of exclusive amplitudes, gluonic radiative corrections (Sudakov factor) and confinement size effects (intrinsic transverse momentum) are combined to study the neutron magnetic for
Externí odkaz:
http://arxiv.org/abs/hep-ph/9407250
Publikováno v:
Z.Phys.C66:267-278,1995
The behavior of the proton magnetic form factor is studied within the modified hard scattering picture, which takes into account gluonic radiative corrections in terms of transverse separations. We parallel the analysis given previously by Li and mak
Externí odkaz:
http://arxiv.org/abs/hep-ph/9405340
Publikováno v:
Z.Phys.A350:145-159,1994
A method is proposed to extend the hard scattering picture of Brodsky and Lepage to transitions between hadrons with orbital angular momentum l=0 and l=1. The use of covariant spin wave functions turns out to be very helpful in formulating that metho
Externí odkaz:
http://arxiv.org/abs/hep-ph/9403319
Akademický článek
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Autor:
Thurmann, M., Reinhardt, W.K.-J., Marzotko, S., Hafizi, R., Indicianskis, L., Bolz, J., Kurz, D., Keim, S., Untch, M., Kvasnicka, H.-M., Bjelic-Radisic, V.
Publikováno v:
Senologie; Jun2024, Vol. 21 Issue 2, pe34-e35, 2p
Publikováno v:
Proceedings of the Royal Society of London. Series B, Biological Sciences, 1985 Jun . 224(1237), 463-473.
Externí odkaz:
https://www.jstor.org/stable/35982