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Title: G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->

Abstract

The ratio of the proton's elastic electromagnetic form factors, G{sub E{sub p}}/G{sub M{sub p}} was obtained by measuring P{sub i} and P{sub l}, the transverse and the longitudinal recoil proton polarization, respectively. For elastic ep to ep, G{sub E{sub p}}/G{sub M{sub p}} is proportional to P{sub t}/P{sub l}. Simultaneous measurement of P{sub t} and P{sub l} in a polarimeter provides good control of the systematic uncertainty. The results for the ratio G{sub E{sub p}}/G{sub M{sub p}} show a systematic decrease as Q{sup 2} increases from 0.5 to 3.5 GeV{sup 2}, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.

Authors:
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Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
828185
Report Number(s):
JLAB-PHY-00-71; DOE/ER/40150-2846; nucl-ex/9910005
Journal ID: ISSN 0031-9007; PRLTAO; TRN: US0404490
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 84; Journal Issue: 7; Other Information: PBD: 14 Feb 2000; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ELECTROMAGNETIC FORM FACTORS; MAGNETIZATION; POLARIMETERS; POLARIZATION; PROTONS; SPATIAL DISTRIBUTION

Citation Formats

Jones, Mark, Aniol, Konrad, Baker, F, Berthot, J, Bertin, Pierre, Bertozzi, William, Besson, Auguste, Bimbot, Louis, Boeglin, Werner, Brash, Edward, Brown, D, Calarco, John, Cardman, Lawrence, Chang, C, Chen, Jian-Ping, Chudakov, Eugene, Churchwell, Steve, Cisbani, Evaristo, Dale, Daniel, Leo, Raffaele De, Deur, Alexandre, Diederich, Brian, Domingo, John, Epstein, Martin, Ewell, Lars, Fissum, Kevin, Fleck, A, Fonvieille, Helene, Frullani, Salvatore, Gao, Juncai, Garibaldi, Franco, Gasparian, Ashot, Gerstner, G M, Gilad, Shalev, Gilman, Ronald, Glamazdin, Oleksandr, Glashausser, Charles, Gomez, Javier, Gorbenko, Viktor, Green, Alphonza, Hansen, Jens-Ole, Howell, Calvin, Huber, Garth, Iodice, Mauro, Jager, Cornelis de, Jaminion, Stephanie, Jiang, Xiaodong, Kahl, William E, Kelly, James, Khayat, Mohammad, Kramer, Laird, Kumbartzki, Gerfried, Kuss, Michael, Lakuriki, E, Laveissiere, Geraud, LeRose, John, Liang, Meihua, Lindgren, Richard, Liyanage, Nilanga, Lolos, George, Macri, R, Madey, Richard, Malov, Sergey, Margaziotis, Demetrius, Markowitz, Pete, McCormick, Kathy, McIntyre, Justin, der Meer, Rob van, Michaels, Robert, Milbrath, Brian, Mougey, Jean, Nanda, Sirish, Offermann, Ed, Papandreou, Zisis, Perdrisat, Charles, Petratos, Gerassimos, Piskunov, Nikolai, Pomatsalyuk, Roman, Prout, David, Punjabi, Vina, Quemener, Gilles, Ransome, Ronald, Raue, Brian, Roblin, Yves, Roche, Julie, Rutledge, Gary, Rutt, Paul, Saha, Arunava, Saito, Teijiro, Sarty, Adam, Smith, T P, Sorokin, P, Strauch, Steffen, Suleiman, Riad, Takahashi, Kazunori, Templon, Jeffrey, Todor, Luminita, Ulmer, Paul, Urciuoli, Guido, Vernin, Pascal, Vlahovic, Branislav, Voskanian, H, Wijesooriya, Krishni, Wojtsekhowski, Bogdan, Woo, Rhett, Xiong, Feng, Zainea, Dan, and Zhou, Zilu. G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->. United States: N. p., 2000. Web.
Jones, Mark, Aniol, Konrad, Baker, F, Berthot, J, Bertin, Pierre, Bertozzi, William, Besson, Auguste, Bimbot, Louis, Boeglin, Werner, Brash, Edward, Brown, D, Calarco, John, Cardman, Lawrence, Chang, C, Chen, Jian-Ping, Chudakov, Eugene, Churchwell, Steve, Cisbani, Evaristo, Dale, Daniel, Leo, Raffaele De, Deur, Alexandre, Diederich, Brian, Domingo, John, Epstein, Martin, Ewell, Lars, Fissum, Kevin, Fleck, A, Fonvieille, Helene, Frullani, Salvatore, Gao, Juncai, Garibaldi, Franco, Gasparian, Ashot, Gerstner, G M, Gilad, Shalev, Gilman, Ronald, Glamazdin, Oleksandr, Glashausser, Charles, Gomez, Javier, Gorbenko, Viktor, Green, Alphonza, Hansen, Jens-Ole, Howell, Calvin, Huber, Garth, Iodice, Mauro, Jager, Cornelis de, Jaminion, Stephanie, Jiang, Xiaodong, Kahl, William E, Kelly, James, Khayat, Mohammad, Kramer, Laird, Kumbartzki, Gerfried, Kuss, Michael, Lakuriki, E, Laveissiere, Geraud, LeRose, John, Liang, Meihua, Lindgren, Richard, Liyanage, Nilanga, Lolos, George, Macri, R, Madey, Richard, Malov, Sergey, Margaziotis, Demetrius, Markowitz, Pete, McCormick, Kathy, McIntyre, Justin, der Meer, Rob van, Michaels, Robert, Milbrath, Brian, Mougey, Jean, Nanda, Sirish, Offermann, Ed, Papandreou, Zisis, Perdrisat, Charles, Petratos, Gerassimos, Piskunov, Nikolai, Pomatsalyuk, Roman, Prout, David, Punjabi, Vina, Quemener, Gilles, Ransome, Ronald, Raue, Brian, Roblin, Yves, Roche, Julie, Rutledge, Gary, Rutt, Paul, Saha, Arunava, Saito, Teijiro, Sarty, Adam, Smith, T P, Sorokin, P, Strauch, Steffen, Suleiman, Riad, Takahashi, Kazunori, Templon, Jeffrey, Todor, Luminita, Ulmer, Paul, Urciuoli, Guido, Vernin, Pascal, Vlahovic, Branislav, Voskanian, H, Wijesooriya, Krishni, Wojtsekhowski, Bogdan, Woo, Rhett, Xiong, Feng, Zainea, Dan, & Zhou, Zilu. G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->. United States.
Jones, Mark, Aniol, Konrad, Baker, F, Berthot, J, Bertin, Pierre, Bertozzi, William, Besson, Auguste, Bimbot, Louis, Boeglin, Werner, Brash, Edward, Brown, D, Calarco, John, Cardman, Lawrence, Chang, C, Chen, Jian-Ping, Chudakov, Eugene, Churchwell, Steve, Cisbani, Evaristo, Dale, Daniel, Leo, Raffaele De, Deur, Alexandre, Diederich, Brian, Domingo, John, Epstein, Martin, Ewell, Lars, Fissum, Kevin, Fleck, A, Fonvieille, Helene, Frullani, Salvatore, Gao, Juncai, Garibaldi, Franco, Gasparian, Ashot, Gerstner, G M, Gilad, Shalev, Gilman, Ronald, Glamazdin, Oleksandr, Glashausser, Charles, Gomez, Javier, Gorbenko, Viktor, Green, Alphonza, Hansen, Jens-Ole, Howell, Calvin, Huber, Garth, Iodice, Mauro, Jager, Cornelis de, Jaminion, Stephanie, Jiang, Xiaodong, Kahl, William E, Kelly, James, Khayat, Mohammad, Kramer, Laird, Kumbartzki, Gerfried, Kuss, Michael, Lakuriki, E, Laveissiere, Geraud, LeRose, John, Liang, Meihua, Lindgren, Richard, Liyanage, Nilanga, Lolos, George, Macri, R, Madey, Richard, Malov, Sergey, Margaziotis, Demetrius, Markowitz, Pete, McCormick, Kathy, McIntyre, Justin, der Meer, Rob van, Michaels, Robert, Milbrath, Brian, Mougey, Jean, Nanda, Sirish, Offermann, Ed, Papandreou, Zisis, Perdrisat, Charles, Petratos, Gerassimos, Piskunov, Nikolai, Pomatsalyuk, Roman, Prout, David, Punjabi, Vina, Quemener, Gilles, Ransome, Ronald, Raue, Brian, Roblin, Yves, Roche, Julie, Rutledge, Gary, Rutt, Paul, Saha, Arunava, Saito, Teijiro, Sarty, Adam, Smith, T P, Sorokin, P, Strauch, Steffen, Suleiman, Riad, Takahashi, Kazunori, Templon, Jeffrey, Todor, Luminita, Ulmer, Paul, Urciuoli, Guido, Vernin, Pascal, Vlahovic, Branislav, Voskanian, H, Wijesooriya, Krishni, Wojtsekhowski, Bogdan, Woo, Rhett, Xiong, Feng, Zainea, Dan, and Zhou, Zilu. Mon . "G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->". United States. https://www.osti.gov/servlets/purl/828185.
@article{osti_828185,
title = {G{sub E{sub p}}/G{sub M{sub p}} ratio by polarization transfer in e --> p --> ep -->},
author = {Jones, Mark and Aniol, Konrad and Baker, F and Berthot, J and Bertin, Pierre and Bertozzi, William and Besson, Auguste and Bimbot, Louis and Boeglin, Werner and Brash, Edward and Brown, D and Calarco, John and Cardman, Lawrence and Chang, C and Chen, Jian-Ping and Chudakov, Eugene and Churchwell, Steve and Cisbani, Evaristo and Dale, Daniel and Leo, Raffaele De and Deur, Alexandre and Diederich, Brian and Domingo, John and Epstein, Martin and Ewell, Lars and Fissum, Kevin and Fleck, A and Fonvieille, Helene and Frullani, Salvatore and Gao, Juncai and Garibaldi, Franco and Gasparian, Ashot and Gerstner, G M and Gilad, Shalev and Gilman, Ronald and Glamazdin, Oleksandr and Glashausser, Charles and Gomez, Javier and Gorbenko, Viktor and Green, Alphonza and Hansen, Jens-Ole and Howell, Calvin and Huber, Garth and Iodice, Mauro and Jager, Cornelis de and Jaminion, Stephanie and Jiang, Xiaodong and Kahl, William E and Kelly, James and Khayat, Mohammad and Kramer, Laird and Kumbartzki, Gerfried and Kuss, Michael and Lakuriki, E and Laveissiere, Geraud and LeRose, John and Liang, Meihua and Lindgren, Richard and Liyanage, Nilanga and Lolos, George and Macri, R and Madey, Richard and Malov, Sergey and Margaziotis, Demetrius and Markowitz, Pete and McCormick, Kathy and McIntyre, Justin and der Meer, Rob van and Michaels, Robert and Milbrath, Brian and Mougey, Jean and Nanda, Sirish and Offermann, Ed and Papandreou, Zisis and Perdrisat, Charles and Petratos, Gerassimos and Piskunov, Nikolai and Pomatsalyuk, Roman and Prout, David and Punjabi, Vina and Quemener, Gilles and Ransome, Ronald and Raue, Brian and Roblin, Yves and Roche, Julie and Rutledge, Gary and Rutt, Paul and Saha, Arunava and Saito, Teijiro and Sarty, Adam and Smith, T P and Sorokin, P and Strauch, Steffen and Suleiman, Riad and Takahashi, Kazunori and Templon, Jeffrey and Todor, Luminita and Ulmer, Paul and Urciuoli, Guido and Vernin, Pascal and Vlahovic, Branislav and Voskanian, H and Wijesooriya, Krishni and Wojtsekhowski, Bogdan and Woo, Rhett and Xiong, Feng and Zainea, Dan and Zhou, Zilu},
abstractNote = {The ratio of the proton's elastic electromagnetic form factors, G{sub E{sub p}}/G{sub M{sub p}} was obtained by measuring P{sub i} and P{sub l}, the transverse and the longitudinal recoil proton polarization, respectively. For elastic ep to ep, G{sub E{sub p}}/G{sub M{sub p}} is proportional to P{sub t}/P{sub l}. Simultaneous measurement of P{sub t} and P{sub l} in a polarimeter provides good control of the systematic uncertainty. The results for the ratio G{sub E{sub p}}/G{sub M{sub p}} show a systematic decrease as Q{sup 2} increases from 0.5 to 3.5 GeV{sup 2}, indicating for the first time a definite difference in the spatial distribution of charge and magnetization currents in the proton.},
doi = {},
journal = {Physical Review Letters},
issn = {0031-9007},
number = 7,
volume = 84,
place = {United States},
year = {2000},
month = {2}
}