Measurement of the pion form factor for M2ππ between 0.1 and 0.85 GeV2 with the KLOE detector

Stefan E. Müller (KLOE collaboration)

doi:10.1088/1674-1137/34/6/013

Chinese Physics C> 2010, Vol. 34> Issue(6) : 686-691 DOI: 10.1088/1674-1137/34/6/013

Measurement of the pion form factor for M²_ππ between 0.1 and 0.85 GeV² with the KLOE detector

Stefan E. Müller (KLOE collaboration)

Institut für Kernphysik, Johannes Gutenberg-Universität, Johann-Joachim-Becher-Weg 45, 55128 Mainz, Germany

Abstract
HTML
Reference
Related

PDF

Abstract：
The KLOE experiment at the φ-factory DAΦNE has measured the pion form factor in the range between 0.12_ππ < 0.85 GeV² using events taken at √s= 1 GeV with a photon emitted at large polar angles in the initial state. This measurement extends the M²_ππ region covered by KLOE ISR measurements of the pion form factor down to the two pion production threshold. The value obtained in this measurement of the dipion contribution to the muon anomalous magnetic moment of Δa_μ^ππ=(478.5±2.0_stat±4.8_syst±2.9_theo)・10^－10 further confirms the discrepancy between the Standard Model evaluation for a_μ and the experimental value measured by the (g-2) collaboration at BNL.

[1]	XIAO Hong , PENG Wen-Xi , WANG Huan-Yu , CUI Xing-Zhu , GUO Dong-Ya . On-orbit calibration of soft X-ray detector on Chang'E-2 satellite. Chinese Physics C, 2015, 39(10): 106002. doi: 10.1088/1674-1137/39/10/106002
[2]	ZHAO Jing , LIU Jia , SHENG Xiang-Dong , HE Hui-Hai , GUO Yi-Qing , HOU Chao , LÜ Hong-Kui . Design and performances of electromagnetic particle detector for LHAASO-KM2A. Chinese Physics C, 2014, 38(3): 036002. doi: 10.1088/1674-1137/38/3/036002
[3]	YUAN Xi , ZHANG Xing , XIE Xu-Fei , CHEN Zhong-Jing , PENG Xing-Yu , FAN Tie-Shuan , CHEN Jin-Xiang , LI Xiang-Qing , YUAN Guo-Liang , YANG Qing-Wei , YANG Jin-Wei . First neutron spectrometry measurement at the HL-2A Tokamak. Chinese Physics C, 2013, 37(12): 126001. doi: 10.1088/1674-1137/37/12/126001
[4]	DONG Ming-Yi , XIU Qing-Lei , LIU Rong-Guang , ZHANG Jian , OUYANG Qun , CHEN Yuan-Bo . Study of 2D interpolating readout for a micro-pattern gaseous detector. Chinese Physics C, 2013, 37(2): 026002. doi: 10.1088/1674-1137/37/2/026002
[5]	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
[6]	YAN Xiao-Song , LIU Rong , LU Xin-Xin , JIANG Li , WEN Zhong-Wei , HAN Zi-Jie . Measurement and analysis of the ²³⁸U(n, 2n) reactionrate in depleted uranium/polyethylene shells. Chinese Physics C, 2012, 36(7): 670-674. doi: 10.1088/1674-1137/36/7/018
[7]	GE Yong-Shuai , WANG Zhi-Gang , YU Bo-Xiang , XIE Yu-Guang , ZHANG Ai-Wu , XUE Zhen , LIU Ying-Biao , GAO Long , NIU Shun-Li , CAI Xiao , FANG Jian , SUN Xi-Lei , NING Fei-Peng , ZHOU Li , HU Tao , , . A novel 2-dimensional cosmic ray position detector based on a CsI(Na) pixel array and an ICCD camera. Chinese Physics C, 2012, 36(11): 1101-1105. doi: 10.1088/1674-1137/36/11/011
[8]	TIAN Li-Chao , TANG Bin , WANG Xiao-Hu , LIU Rong-Guang , ZHANG Jian , CHEN Yuan-Bo , SUN Zhi-Jia , XU Hong , YANG Gui-An , ZHANG Qiang . Developments of a 2D position sensitiveneutron detector. Chinese Physics C, 2012, 36(6): 525-530 . doi: 10.1088/1674-1137/36/6/008
[9]	Henryk Czyz , Agnieszka Grzelinska . Strong and electromagnetic J/ψ and ψ(2S) decays into pion and kaon pairs. Chinese Physics C, 2010, 34(6): 855-859. doi: 10.1088/1674-1137/34/6/039
[10]	E. Tomasi-Gustafsson (on behalf of the PANDA collaboration) . Form factor measurements with PANDA at FAIR. Chinese Physics C, 2010, 34(6): 863-868. doi: 10.1088/1674-1137/34/6/041
[11]	DONG Yu-Bing . Pion charge form factor and constraints from space-time translations. Chinese Physics C, 2010, 34(9): 1342-1345. doi: 10.1088/1674-1137/34/9/038
[12]	for the . Status of KLOE-2. Chinese Physics C, 2010, 34(6): 918-923. doi: 10.1088/1674-1137/34/6/051
[13]	ZHOU Jing , FU Yuan-Yong , ZHOU Shu-Hua , XIA Hai-Hong , LI Cheng-Bo , MENG Qiu-Ying . Measurement of the astrophysical S factor for the low energy ²H(d,γ)⁴He reaction. Chinese Physics C, 2009, 33(5): 350-353. doi: 10.1088/1674-1137/33/5/006
[14]	M. Sudol (for \=PANDA collaboration) . Time-like proton form factor measurement with PANDA. Chinese Physics C, 2009, 33(12): 1244-1248. doi: 10.1088/1674-1137/33/12/031
[15]	CHI Shao-Peng , MO Xiao-Hu , ZHU Yong-Sheng . Measurement of the Integrated Luminosity at s(1/2)=3.650,3.686 GeV for the BES Detector. Chinese Physics C, 2004, 28(11): 1135-1140.
[16]	Li Panlin , Deng Chengfeng , Wang Lilian , Xu Mengjie . Calculation of the Productive Dilepton Spectrum (M≤4GeV/c²) in ²³⁸U+²³⁸U Collisions at E_c,m≈200GeV/u. Chinese Physics C, 1999, 23(7): 693-700.
[17]	Sun Xiangfu , Liu Zhong , Zhou Xiaohong , Lei Xiangguo , Jin Hanjuan , Pan Qiangyan , Zhang Yuhu , Guo Yingxiang , Cheng Xinfeng , Luo Yixiao , Wen Shuxian , Yuan Guanjun , Li Guangsheng , Yang Chunxiang . Measurement of the h_11/2 Band of ¹¹⁷Cs. Chinese Physics C, 1994, 18(S4): 341-344.
[18]	SONG Xiao-Tong , DAI You-Shan . ELECTROMAGNETIC FORM FACTORS OF (0—1/2) ELECTROMAGNETIC BOUND SYSTEM. Chinese Physics C, 1985, 9(3): 371-376.
[19]	COUNTER GROUP , , , , , , , , , , . 2-METER THRESHOLD GAS CERENKOV DETECTOR. Chinese Physics C, 1982, 6(6): 775-777.
[20]	HUANG CHAO-SHANG . THE LARGE MOMENTUM BEHAVIOR OF THE ELECTROMAGNETIC TRANSITION FORM FACTOR F_A₁π(q²) IN QCD. Chinese Physics C, 1982, 6(2): 168-175.

Access

Get Citation

Stefan E. Müller (KLOE collaboration). Measurement of the pion form factor for M²_ππ between 0.1 and 0.85 GeV² with the KLOE detector[J]. Chinese Physics C, 2010, 34(6): 686-691. doi: 10.1088/1674-1137/34/6/013

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2010-01-25
Revised: 1900-01-01

Article Metric

Article Views(2508)
PDF Downloads(426)
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

Measurement of the pion form factor for M²_ππ between 0.1 and 0.85 GeV² with the KLOE detector

Institut für Kernphysik, Johannes Gutenberg-Universität, Johann-Joachim-Becher-Weg 45, 55128 Mainz, Germany

Received Date: 2010-01-25

Accepted Date: 1900-01-01

Available Online: 2010-06-05

Abstract:

The KLOE experiment at the φ-factory DAΦNE has measured the pion form factor in the range between 0.12_ππ < 0.85 GeV² using events taken at √s= 1 GeV with a photon emitted at large polar angles in the initial state. This measurement extends the M²_ππ region covered by KLOE ISR measurements of the pion form factor down to the two pion production threshold. The value obtained in this measurement of the dipion contribution to the muon anomalous magnetic moment of Δa_μ^ππ=(478.5±2.0_stat±4.8_syst±2.9_theo)・10^－10 further confirms the discrepancy between the Standard Model evaluation for a_μ and the experimental value measured by the (g-2) collaboration at BNL.

Measurement of the pion form factor for M²_ππ between 0.1 and 0.85 GeV² with the KLOE detector

Abstract：

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article

Measurement of the pion form factor for M²_ππ between 0.1 and 0.85 GeV² with the KLOE detector

HTML

目录