STI Publications - View Publication Form #23431
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Publication Information
| Title | A study of charge symmetry violation in fragmentation functions extracted from semi-inclusive electroproduction of charged pions from protons and deuterons | ||||
| Abstract | We have measured the flavor dependence of multiplicities for pi+ and pi- 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 < x < 0.6, 2 < Q² < 5 GeV², and 4 < W² < 11 GeV². The pion fractional momentum range was 0.3 < z < 0.7, and the small transverse momentum range was 0 < Pt < 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 Pt, we find that these two FFs allow for isospin breaking (charge symmetry violation) at low W, while converging to a common flavor-independent value at the highest W of this experiment, where the factorization is most applicable. | ||||
| Author(s) | Hem Bhatt | ||||
| Publication Date | May 2024 | ||||
| Document Type | Thesis | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall C | ||||
| Funding Source | Nuclear Physics (NP), U.S.DOE Grant Number: DE-FG02-07ER41528 | ||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E12-09-002
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Thesis
| Thesis Type | PhD |
| Advisor | Institution |
| 1. Dipangkar Dutta | Mississippi State University |
| 2. Dave Gaskell | Jefferson Lab |
Attachments/Datasets/DOI Link
| Document(s) |
HemBhatt_Dissertation.pdf
(STI Document)
|
| Dataset(s) | (none) |
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