Publications
Publication Information
| Title | A study of charge symmetry violation in fragmentation functions extracted from semi-inclusive electroproduction of charged pions from protons and deuterons |
| Authors | Hem Bhatt |
| JLAB number | JLAB-PHY-24-4251 |
| LANL number | (None) |
| Other number | DOE/OR/23177-7757 |
| Document Type(s) | (Thesis) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | Nuclear Physics (NP) |
| Other Funding: | U.S.DOE Grant Number: DE-FG02-07ER41528 |
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Thesis A PHD thesis Advisor(s) : Dipangkar Dutta (Mississippi State University) Dave Gaskell (Jefferson Lab) | |
| Publication Abstract: | We have measured the flavor dependence of multiplicities for ?+ and ?? production in semi- inclusive deep-inelastic scattering (SIDIS) on proton and deuteron targets. We used a 10.6 GeV electron beam at Jefferson Lab, and 4 msr solid angle spectrometers (HMS for electrons, SHMS for pions), the lepton vertex spanned the kinematic range 0.3 < ? < 0.6, 2 < ?2 < 5 GeV2, and 4 < ?2 < 11 GeV2. The pion fractional momentum range was 0.3 < ? < 0.7 and the small transverse momentum range was 0 < ?? < 0.25 GeV. We used the multiplicities to form sum-and- difference ratios, testing the validity of factorization. We extracted two favored and two unfavored flavor-dependent fragmentation functions (FFs) using these multiplicities. Assuming factorization at low ?? , we find that these two FFs allow for isospin breaking (charge symmetry violation) at low ?, while converging to a common flavor independent value at the highest ? of this experiment, where the factorization is most applicable. |
| Experiment Numbers: | E12-09-002 |
| Group: | Hall C |
| Document: | |
| DOI: | |
| Accepted Manuscript: | |
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