The influence of cold nuclear matter on lepto-production of hadrons in semi-inclusive deep inelastic scattering is measured using the CLAS detector in Hall B at Jefferson Lab and a 5.014 GeV electron beam. We report the Ks0 multiplicity ratios for targets of C, Fe, and Pb relative to deuterium as a function of the fractional virtual photon energy z transferred to the Ks0 and the transverse momentum squared pT2 of the Ks0. We find that the multiplicity ratios for Ks0 are reduced in the nuclear medium at high z and low pT2, with a trend for the Ks0 transverse momentum to be broadened in the nucleus for large pT2.
|Original language||English (US)|
|Number of pages||6|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|State||Published - Nov 30 2011|
Bibliographical noteFunding Information:
We thank the staff of the Accelerator and Physics Divisions at Jefferson Lab for their support. This work was supported in part by the Chilean Comisión Nacional de Investigación Científica y Tecnológica (CONICYT) , the Italian Istituto Nazionale di Fisica Nucleare , the French Centre National de la Recherche Scientifique , the French Commissariat à lʼEnergie Atomique , the U.S. Department of Energy , the National Science Foundation , the UK Science and Technology Facilities Council (STFC) , the Scottish Universities Physics Alliance (SUPA) , and the National Research Foundation of Korea . The Jefferson Science Assosciates (JSA) and Southeastern Universities Research Association (SURA) which operates the Thomas Jefferson National Accelerator Facility for the United States Department of Energy under contract DE-AC05-84ER40150.
- Deep inelastic scattering
- Hadron production