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Publication Information
| Title | Separated Response Function Ratios in Exclusive, Forward pi^{+/-} Electroproduction | ||||
| Abstract | The study of exclusive pi+/- electroproduction on the nucleon, including separation of the various structure functions, is of interest for a number of reasons. The ratio RL=sigma pi? L/sigma pi+L is sensitive to isoscalar contamination to the dominant isovector pion exchange amplitude, which is the basis for the determination of the charged pion form factor from electroproduction data. A change in the value of RT=sigma pi?T/sigma pi+T from unity at small -t, to 1/4 at large -t, would suggest a transition from coupling to a (virtual) pion to coupling to individual quarks. Furthermore, the mentioned ratios may show an earlier approach to pQCD than the individual cross sections. We have performed the first complete separation of the four unpolarized electromagnetic structure functions above the dominant resonances in forward, exclusive pi +/- electroproduction on the deuteron at central Q2 values of 0.6, 1.0, 1.6 GeV2 at W=1.95 GeV, and Q2=2.45 GeV2 at W=2.22 GeV. Here, we present the L a | ||||
| Author(s) | Garth Huber, Hendrik Blok, Cornel Butuceanu, Dave Gaskell, Tanja Horn, Dave Mack, David Abbott, Konrad Aniol, Heinz Anklin, Chris Armstrong, John Arrington, Ketevi Assamagan, Steven Avery, Oliver Baker, Brynle Barrett, Elizabeth Beise, Chris Bochna, Werner Boeglin, Ed Brash, Herbert Breuer, C. Chang, Nicholas Chant, Eric Christy, Jim Dunne, T. Eden, Rolf Ent, Howard Fenker, Edward Gibson, Ronald Gilman, Kenneth Gustafsson, Wendy Hinton, Roy Holt, Hal Jackson, S. Jin, Mark Kevin Jones, Cynthia (Thia) Keppel, Pyunghun Kim, Wooyoung Kim, Paul King, Andi Klein, Doug Koltenuk, Vitali Kovaltchouk, M. Liang, J. Liu, George Lolos, Allison Lung, Dimitri Margaziotis, Pete Markowitz, Akihiko Matsumura, David McKee, Dave Meekins, Joe Mitchell, Toshinobu Miyoshi, Hamlet Mkrtchyan, Berndt Mueller, Gabriel Niculescu, Maria Niculescu, Yuichi Okayasu, Lubomir Pentchev, Charles Perdrisat, David Pitz, Dave Potterveld, Vina Punjabi, Liming Qin, Paul Reimer, Joerg Reinhold, Julie Roche, Philip Roos, Adam Sarty, Ilkyoung Shin, Greg Smith, Stepan Stepanyan, Liguang Tang, Vardan Tadevosyan, Vladas Tvaskis, Rob van der Meer, Kelley Vansyoc, Derek Van Westrum, Sandra Vidakovic, Jochen Volmer, William Vulcan, Glen Warren, Stephen Wood, C. Xu, C. Yan, Wenxia Zhao, Xiaochao Zheng, Benedikt Zihlmann | ||||
| Publication Date | May 2014 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | Exp Nuclear Physics / Experimental Halls / Hall C | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Physical Review Letters |
| Refereed | Yes |
| Volume | 112 |
| Issue | 18 |
| Page(s) | 182501 |
Attachments/Datasets/DOI Link
| Document(s) |
1404.3985v1.pdf
(STI Document)
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| DOI Link | |
| Dataset(s) | (none) |
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