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Investigation of novel effects in semi-inclusive deep inelastic scattering


Dvoredsky, Andrea Paulina (2000) Investigation of novel effects in semi-inclusive deep inelastic scattering. Dissertation (Ph.D.), California Institute of Technology. doi:10.7907/t0dm-y753.


NOTE: Text or symbols not renderable in plain ASCII are indicated by [...]. Abstract is included in .pdf document.

Azimuthal distributions in hadron production were measured in unpolarized deep inelastic scattering with unpolarized light gas targets. For pions, measurements of [...] are consistent with previous measurements at moderate [...] values, although at low [...], there are indications that simple kinematic models are insufficient to describe these data. This effect appears to be charge-independent. The [...] moment is extracted as well and at an average [...] of [...], a significant value for [...] of [...] is seen and decreases with [...]. In addition, first measurements are shown for the same azimuthal distributions in electroproduction of [...] and [...] and indicate that, unlike in pion production, the azimuthal moments for strange particles are much smaller. The 11 events are also used in a new search for spin transfer in deep inelastic scattering. Terms that depend on beam polarization are consistent with zero and show no clear kinematic variation, indicating that the polarized fragmentation function is small at these kinematics. On the other hand, the transverse polarization of [...] seen at [...] suggests that unpolarized transverse fragmentation functions grow with [...] and [...]; these measurements may be compared with hadroproduction data.

Item Type:Thesis (Dissertation (Ph.D.))
Degree Grantor:California Institute of Technology
Division:Physics, Mathematics and Astronomy
Major Option:Physics
Thesis Availability:Public (worldwide access)
Research Advisor(s):
  • McKeown, Robert D.
Thesis Committee:
  • Unknown, Unknown
Defense Date:29 September 1999
Record Number:CaltechETD:etd-09162004-111306
Persistent URL:
Default Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3562
Deposited By: Imported from ETD-db
Deposited On:17 Sep 2004
Last Modified:19 Apr 2021 22:35

Thesis Files

PDF (Dvoredsky_ap_2000.pdf) - Final Version
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