Nucleon transition form factors at JLab: status and outlook

R. W. Gothe

doi:10.1088/1674-1137/33/12/026

Chinese Physics C> 2009, Vol. 33> Issue(12) : 1216-1221 DOI: 10.1088/1674-1137/33/12/026

Nucleon transition form factors at JLab: status and outlook

R. W. Gothe ^,

(University of South Carolina, Columbia, SC 29208, USA)

Abstract
HTML
Reference
Related

PDF

Abstract：
The measurements of exclusive single-meson and double-pion electro-production cross sections off the proton to study nucleon resonances will be extended to higher momentum transfers with the CLAS12 detector and the energy upgraded CEBAF beam. Based on new theoretical developments to extract and interpret the electromagnetic transition form factors and on the experience gained from the most recent results, the newly formed collaboration of experimentalists and theorists shall enable us to provide unprecedented high-precision data, high-quality analyses, and state-of-the-art model and QCD based calculations in a Q² domain up to 10 GeV². For the first time nucleon resonance structures will be studied at still unexplored distance scales, where the dressed quark contributions are the dominating degrees of freedom and their strong interaction is responsible for the ground and excited nucleon state formation. These studies also open up a promising opportunity to understand the origin of more than 98% of the nucleon mass that is created by strong fields predominantly at these distance scales by dressing the current quarks.

References

[1]

. Gothe R W, Mokeev V et al. Nucleon ResonanceStudies with CLAS12, Approved Proposal E-09-003,www.physics.sc.edu/gothe/research/pub/nstar12-12-08.pdf (2009)2. Aznauryan I et al. Theory Support for the Excited BaryonProgram at the JLab 12 GeV Upgrade, arXiv:0907.1901v2[nucl-th] (2009)3. Roberts C D et al. these proceedings, Phys. Rev. C, 2003,67: 015203; Prog. Part. Nucl. Phys., 1994, 33: 4774. LIN H W et al. these proceedings, arXiv:0810.5141 [hep-lat]; Phys. Rev. D, 2009, 79: 1145055. Braun V M et al. Phys. Rev. D, 2006, 74: 074501; Phys.Rev. D, 2006, 73: 094019; Phys. Rev. D, 2002, 65: 0740116. Ichie H, Bornyakov V, Steuer T, Schierholz G. hep-lat/0212024 (2002)7. Ungaro M et al. Phys. Rev. Lett., 2006, 97: 1120038. Aznauryan I G. Phys. Rev. C, 2003, 67: 0152099. Joo K et al. Phys. Rev. Lett., 2002, 88: 12200110. Gothe R W. Proceedings of NSTAR 2002, World Scienti c,200311. Frolov V V et al. Phys. Rev. Lett., 1999, 82: 4512. Mertz C et al. Phys. Rev. Lett., 2001, 86: 296313. Beck R et al. Phys. Rev. C, 2000, 61: 03520414. Laveissiere G et al. Phys. Rev. C, 2004, 69: 04520315. Joo K et al. Phys. Rev. C, 2004, 70: 04220116. Kelly J J et al. Phys. Rev. Lett., 2005, 95: 10200117. Egiyan H et al. Phys. Rev. C, 2006, 73: 02520418. Arndt R A et al. nucl-th/9708006 (1997); Phys. Rev. C,2002, 66: 05521319. Barker I S, Donnachie A, Storrow J K. Nucl. Phys. B, 1975,9520. Bowman P O et al. Phys. Lett. D, 2002, 66: 014505;arXiv:hep-lat/0209129 (2002)21. Bhagwat M S et al. arXiv:nucl-th/0304003 (2003)22. Iida H et al. Nucl. Phys. Proc., 2005, Suppl. 14123. Diakonov D, Petrov V. Phys. Lett. B, 1984, 147: 35124. Preliminary JLab Results. Park K, Aznauryan I. Private Communication, 200825. Tiator L et al. These proceedings, Eur. Phys. J. A, 2007,34: 387; Nucl. Phys. A, 1999, 645: 14526. Preliminary JLab Results, Mokeev V, Private Communica-tion, 200927. Ablikim M et al. Phys. Rev. Lett., 2009, 97: 06200128. Aznauryan I et al. arXiv:nucl-ex/0804.0447 (2008)29. Park K et al. Phys. Rev. C, 2008, 77: 01520830. Aznauryan I G et al. Phys. Rev. C, 2005, 71: 01520131. Joo K et al. Phys. Rev. Lett., 2002, 88: 122001; Joo K etal. Phys. Rev. C, 2003, 68: 032201; Joo K et al. Phys. Rev.C, 2003, 70: 042201; Egiyan H et al. Phys. Rev. C, 2006,73: 02520432. Aznauryan I G et al. Phys. Rev. C, 2005, 72: 04520133. Eidelman S et al. Phys. Lett. B, 2004, 592: 134. Capstick S, Keister B D. Phys. Rev. D, 1995, 51: 359835. Weber H J. Phys. Rev. C, 1990, 41: 278336. Cardelli F et al. Phys. Lett. B, 1997, 397: 1337. Julia-Diaz B. Phys. Rev. C, 2004, 69: 03521238. Aznauryan I G et al. Phys. Rev. C, 2007, 76: 02521239. Cano F, Gonzalez P. Phys. Lett. B, 1998, 43140. LI Z, Burkert V. Phys. Rev. D, 1992, 46: 7041. Mastsuyama A et al. Physics Reports, 2007, 43942. Lee T-S H et al. Theory Support for the Excited Baryon Program at the JLab 12 GeV Upgrade, arXiv:0907.1901v2[nucl-th] (2009); Julia-Diaz B et al. these proceedings43. Ripani M et al. Phys. Rev. Lett., 2003, 91: 02200244. Bellis M et al. Proceedings of NSTAR2004, World Scien-ti c, 200445. Battaglieri M et al. Phys. Rev. Lett., 2001, 87: 17200246. Strauch S et al. Phys. Rev. Lett., 2005, 95: 16200347. Fedotov G et al. CLAS Analysis Note, June 200648. Thoma U. Int. J. Mod. Phys. A, 2005, 20: 28049. WU C et al. Eur. Phys. J A, 2005, 23:31750. Assa ri Y et al. Phys. Rev. Lett., 2003, 90: 22200151. Ahrens J et al. Phys. Lett. B, 2005, 624: 17352. Kotulla M et al. Phys. Lett. B, 2004, 578: 6353. Langgartner W et al. Phys. Rev. Lett., 2001, 87: 05200154. Harter F et al. Phys. Lett. B, 1997, 401: 22955. Braghieri A et al. Phys. Lett. B, 1995, 36356. Burkert V, Lee T-S H. Int. J. Mod. Phys. E, 2004, 13; andnucl-ex/040702057. Capstick S, Roberts W. Prog. Part. Nucl. Phys., 2000, 45:s24158. Mokeev V et al. Proceedings of NSTAR2007, Springer,2008, or arXiv:0710.5616v2 [hep-ex] (2007)59. Mokeev V et al. arXiv:hep-ph/0512164; Phys. of Atom.Nucl., 2003, 66; Phys. of Atom. Nucl., 2001, 6460. Preliminary JLab Results, Mokeev V. Private Communication, 200861. Aznauryan I G. Phys. Rev. C, 2003, 68: 065204; Phys.Rev. C, 2003, 67: 015209

[1]	Liang-Liang Liu , Chao Wang , Xin-Heng Guo . Electromagnetic form factors of Λ_c in the space-like momentum region. Chinese Physics C, 2018, 42(10): 103106. doi: 10.1088/1674-1137/42/10/103106
[2]	Guo-Liang Yu , Zhi-Gang Wang , Zhen-Yu Li . Analysis of the strong coupling form factors of ∑_bNB and∑_cND in QCD sum rules. Chinese Physics C, 2017, 41(8): 083104. doi: 10.1088/1674-1137/41/8/083104
[3]	Fangcheng He , Ping Wang . Dirac and Pauli form factors of nucleons using nonlocal chiral effective Lagrangian. Chinese Physics C, 2017, 41(11): 114106. doi: 10.1088/1674-1137/41/11/114106
[4]	Jian Liu , Jinjuan Zhang , Chang Xu , Zhongzhou Ren . Nuclear longitudinal form factors for axially deformed charge distributions expanded by nonorthogonal basis functions. Chinese Physics C, 2017, 41(5): 054101. doi: 10.1088/1674-1137/41/5/054101
[5]	Han Guo , Zi-Ping Zhang . A method for measuring D^* electromagnetic form factors in e⁺ e^- annihilation. Chinese Physics C, 2017, 41(9): 093001. doi: 10.1088/1674-1137/41/9/093001
[6]	Bao-dong Sun , Yu-bing Dong . Deuteron electromagnetic form factors with the light-front approach. Chinese Physics C, 2017, 41(1): 013102. doi: 10.1088/1674-1137/41/1/013102
[7]	LUAN Yi-Long , CHEN Xiao-Lin , DENG Wei-Zhen . Meson electro-magnetic form factors in an extended Nambu-Jona-Lasinio model including heavy quark flavors. Chinese Physics C, 2015, 39(11): 113103. doi: 10.1088/1674-1137/39/11/113103
[8]	WU Qing , ZHOU Li-Juan , XIANG Qian-Fei , MA Wei-Xing . Multiquark cluster form factors in the relativistic harmonic oscillator model. Chinese Physics C, 2015, 39(1): 013102. doi: 10.1088/1674-1137/39/1/013102
[9]	LIANG Cui-Ying , DONG Yu-Bing . Deuteron form factors in a phenomenological approach. Chinese Physics C, 2015, 39(10): 104104. doi: 10.1088/1674-1137/39/10/104104
[10]	LIANG Cui-Ying , DONG Yu-Bing , LIANG Wei-Hong . Deuteron electromagnetic form factors in transverse plane with a phenomenological Lagrangian approach. Chinese Physics C, 2014, 38(7): 074104. doi: 10.1088/1674-1137/38/7/074104
[11]	WU Xing-Gang , HUANG Tao , ZHONG Tao . Information on the pion distribution amplitude from the pion-photon transition form factor with the Belle and BABAR data. Chinese Physics C, 2013, 37(6): 063105. doi: 10.1088/1674-1137/37/6/063105
[12]	JIN Dan , YANG Ya-Dong . Space- and time-like kaon electromagnetic form factors in perturbative QCD. Chinese Physics C, 2012, 36(10): 941-946. doi: 10.1088/1674-1137/36/10/004
[13]	ZHOU Hai-Qing . Two-photon-exchange contribution to proton form factors in both space-like and time-like regions. Chinese Physics C, 2010, 34(6): 869-873. doi: 10.1088/1674-1137/34/6/042
[14]	DONG Yu-Bing . An estimate of two-photon exchange effect on deuteron electromagnetic form factors. Chinese Physics C, 2010, 34(9): 1346-1349. doi: 10.1088/1674-1137/34/9/039
[15]	Baldini Ferroli . BABAR measurement of baryon time-like form factors via initial state radiation. Chinese Physics C, 2010, 34(6): 860-862. doi: 10.1088/1674-1137/34/6/040
[16]	V. P. Druzhinin . Measurements of the γγ^→π⁰ and γγ^→η_c transition form factors at BABAR. Chinese Physics C, 2010, 34(6): 816-821. doi: 10.1088/1674-1137/34/6/033
[17]	S. Pacetti¹ , 2 . Nucleon form factors: the space-time connection. Chinese Physics C, 2010, 34(6): 874-876.
[18]	Hiroyuki Kamano . Study of excited nucleon states at EBAC: status and plans. Chinese Physics C, 2009, 33(12): 1077-1084. doi: 10.1088/1674-1137/33/12/006
[19]	A. J. Buchmann . Excited nucleon electromagnetic form factors from broken spin-flavor symmetry. Chinese Physics C, 2009, 33(12): 1257-1260. doi: 10.1088/1674-1137/33/12/034
[20]	任中洲 , . Influences of the change of neutron number on the charge form factors of Ca and Ni isotopes. Chinese Physics C, 2008, 32(S2): 93-98.

Access

Get Citation

R. W. Gothe. Nucleon transition form factors at JLab: status and outlook[J]. Chinese Physics C, 2009, 33(12): 1216-1221. doi: 10.1088/1674-1137/33/12/026

R. W. Gothe. Nucleon transition form factors at JLab: status and outlook[J]. Chinese Physics C, 2009, 33(12): 1216-1221. doi: 10.1088/1674-1137/33/12/026 shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2009-08-07
Revised: 1900-01-01

Article Metric

Article Views(2581)
PDF Downloads(561)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Nucleon transition form factors at JLab: status and outlook

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Nucleon transition form factors at JLab: status and outlook

Corresponding author: R. W. Gothe,

HTML

目录