Hoyer, P. (2012) Measuring transverse size with virtual photons. Il nuovo cimento C, 35 (2). pp. 277-282. ISSN 1826-9885
|
Text
ncc10185.pdf - Published Version Download (177kB) | Preview |
Abstract
Fourier transforming the virtual photon transverse momentum in γ∗(q⊥) + N → f processes allows new insight into hadron dynamics as a function of impact parameter b. I discuss how previous analyses of charge density based on elastic and transition form factors (f = N,N∗) can be generalized to any multihadron final state (f = πN, ππN, D¯Λc,...). The b-distribution determines the transverse positions of the quarks that the photon couples to, and can be studied as a function of multiplicity, the relative transverse momenta, quark masses and polarization. The method requires no factorization nor leading twist approximation. Data with spacelike photon virtualities in the range 0 ≤ Q ≤ Qmax provides a resolution Δb 1/Qmax in impact parameter.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Photon and charged-lepton interactions with hadrons |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 19 Apr 2020 14:46 |
| Last Modified: | 19 Apr 2020 14:46 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/17793 |
Actions (login required)
 |
View Item |
