STI Publications - View Publication Form #10287
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Publication Information
| Title | Semi-Inclusive Charged-Pion Electroproduction off Protons and Deuterons: Cross Sections, Ratios and Access to the Quark-Parton Model at Low Energies | ||||
| Abstract | A large set of cross sections for semi-inclusive electroproduction of charged pions ($\pi^{\pm}$) from both proton and deuteron targets was measured. The data are in the deep-inelastic scattering region with invariant mass squared $W^2 >$ 4 GeV$^2$ and range in four-momentum transfer squared $2<Q^2<4$ (GeV/$c$)$^2$, and cover a range in the Bjorken scaling variable $0.2<x<0.6$. The fractional energy of the pions spans a range $0.3<z<1$, with small transverse momenta with respect to the virtual-photon direction, $P_t^2<0.2$ (GeV/$c$)$^2$. The invariant mass that goes undetected, $M_x$ or $W^\prime$, is in the nucleon resonance region, $W^\prime<2$ GeV. The new data conclusively show the onset of quark-hadron duality in this process, and the relation of this phenomenon to the high-energy factorization ansatz of electron-quark scattering and subsequent quark $\rightarrow$ pion production mechanisms. The $x$, $z$ and $P^2_t$ dependences of several ratios (the ratios of | ||||
| Author(s) | Razmik Asaturyan, Rolf Ent, Hamlet Mkrtchyan, Tigran Navasardyan, Vardan Tadevosyan, Gary Adams, Abdellah Ahmidouch, Tatiana Angelescu, John Arrington, Arshak Asaturyan, Oliver Baker, Nawal Benmouna, Crystal Bertoncini, Hendrik Blok, Werner Boeglin, Peter Bosted, Herbert Breuer, Eric Christy, Simon Connell, Yonggang Cui, Mark Macrae Dalton, Sam Danagoulian, Donal Day, Jim Dunne, Dipangkar Dutta, Najib Elkhayari, Howard Fenker, Valera Frolov, Liping Gan, Dave Gaskell, Kawtar Hafidi, Wendy Hinton, Roy Holt, Tanja Horn, Garth Huber, Ed Hungerford, Xiaodong Jiang, Mark Kevin Jones, Kyungseon Joo, Narbe Kalantarians, Jim Kelly, Cynthia (Thia) Keppel, Valery Kubarovsky, Yishi Li, Yongguang Liang, Dave Mack, Simona Malace, Pete Markowitz, Erin McGrath, Paul McKee, Dave Meekins, Arthur Mkrtchyan, Brian Moziak, Gabriel Niculescu, Maria Niculescu, Allena Opper, Paul Reimer, Joerg Reinhold, Julie Roche, Stephen Rock, Elaine Schulte, Edwin Segbefia, Cole Smith, Greg Smith, Paul Stoler, Liguang Tang, Maurizio Ungaro, Alicia Uzzle, Sandra Vidakovic, Anthony Villano, William Vulcan, Miao Wang, Glen Warren, Frank Wesselmann, Bogdan Wojtsekhowski, Stephen Wood, Chuncheng Xu, Lulin Yuan, Xiaochao Zheng | ||||
| Publication Date | January 2012 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Physics Division Office / Administrative | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | Yes | ||||
| Experiment Number(s) |
E00-108
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| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review C |
| Refereed | Yes |
| Volume | 85 |
| Issue | |
| Page(s) | 015202 (31 pages) |
Attachments/Datasets/DOI Link
| Document(s) |
prc2011.pdf
(STI Document)
|
| DOI Link | |
| Dataset(s) | (none) |
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