An estimate of the prehadron production time [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2009.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Additional Creators:
- Thomas Jefferson National Accelerator Facility (U.S.), United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- A semi-quantitative estimate of the prehadron production time based on recent preliminary HERMES data on hadron transverse momentum broadening in nuclear DIS is presented. The obtained production time can well explain the data except for their dependence on the photon virtuality, which remains a challenge to current theoretical models. A few mechanisms that may contribute to its explanation are suggested, along with possible experimental tests. The average time scale at HERMES is found to be of the order of 4-5 fm, comparable to heavy nuclei radii, so that by suitable kinematic cuts it will be possible to study both the case in which hadronization starts inside and the case in which it starts outside the nucleus. A comparison with recent CLAS preliminary data, which qualitatively but not quantitatively agree with HERMES, is performed.
- Report Numbers:
- E 1.99:jlab-thy-08-864
E 1.99: arxiv:0808.0656
E 1.99: doe/or/23177-0466
- Published through SciTech Connect.
Preprint to be distributed FT
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