Result of search for low velocity exotic particles

MA Xin-Hua; DING Lin-Kai; GUO Ya-Nan; HE Zuo-Xiu; HUO An-Xiang; JING Cai-Liu; KUANG Hao-Huai; MA Yu-Qian; QING Cheng-Rui; SHEN Chang-Quan; YU Zhong-Qiang; ZHANG Chao; ZHU Qing-Qi

doi:10.1088/1674-1137/33/8/001

Chinese Physics C> 2009, Vol. 33> Issue(8) : 603-608 DOI: 10.1088/1674-1137/33/8/001

Result of search for low velocity exotic particles

Abstract
HTML
Reference
Related

PDF

Abstract：
The L3+C experiment, taking advantage of the L3 muon magnetic spectrometer, measured the spatial tracks of charged cosmic ray particles to obtain rigidity as well as velocity. One possible low velocity exotic particle is observed. The existing uncertainties are discussed, and the flux upper limit of the low velocity exotic particles from this observation is deduced based on the assumption of a null observation. The result is 6.2×10^－10 cm^－2﹒s^－1﹒sr^－1 at 90% confidence level in the velocity range from 0.04c to 0.5c.

References

[1]

. Witten E. Phys. Rev. D, 1984, 30: 2722. Farhi E, Ja e R L. Phys. Rev. D, 1984, 30: 23793. Rujula A De, Glashow S L. Nature, 1984, 312: 7344. 't Hooft G. Nucl. Phys. B, 1974, 79: 2765. Polyakov A M. JETP Lett., 1974, 20: 1946. King S F, Sha O N. Phys. Lett. B, 1998, 422: 1357. Bakari D et al. 2000, Preprint hep-ex/00040198. CHEN H et al. Phys. Rep., 1997, 282: 19. The MACRO Collaboration. Eur. Phys. J. C, 2002, 25:511-52210. Anderson D et al. Bulletin of the Seismological Society of America, 2003, 93(6): 236311. Price P B et al. Phys. Rev. Lett., 1975, 35: 48712. Price P B et al. Phys. Rev. D, 1978, 18: 138213. Ichimura M et al. Nuovo Cimento A, 1993, 106: 84314. Saito T et al. Phys. Rev. Lett., 1990, 65: 209415. Kasuya M et al. Phys. Rev. D, 1993, 47: 215316. Miyamura O et al. 1995, Preprint astro-ph/950409117. Capdeville J N et al. Nuovo Cimento C, 1996, 19: 62318. Banerjee S et al. J. Phys. G, 1999, 25: L1519. MA X. (L3+C Collaboration). J. Phys. G: Nucl. Part.Phys., 2006, 32: S57520. Adriani O et al. Nuclear Instruments and Methods in Physics Research A, 2002, 488: 20921. Achard P et al. (L3 Collaboration). Phys. Lett. B, 2004,598: 15-3222. LI Ti-Pei. Mathematical Treatment of Exmeriments. Bei-jing: Science Press, 1980. 34-36 (in Chinese)

[1]	Yi Jin , Shi-Yuan Li , Yan-Rui Liu , Lu Meng , Zong-Guo Si , Xiao-Feng Zhang . Exotic hadron bound state production at hadron colliders. Chinese Physics C, 2017, 41(8): 083106. doi: 10.1088/1674-1137/41/8/083106
[2]	R. A. Briceño , T. D. Cohen , S. Coito , J. J. Dudek , E. Eichten , C. S. Fischer , M. Fritsch , W. Gradl , A. Jackura , M. Kornicer , G. Krein , R. F. Lebed , F. A. Machado , R. E. Mitchell , C. J. Morningstar , M. Peardon , M. R. Pennington , K. Peters , J. M. Richard , C. P. Shen , M. R. Shepherd , T. Skwarnicki , E. S. Swanson , A. P. Szczepaniak , C. Z. Yuan . Issues and Opportunities in Exotic Hadrons. Chinese Physics C, 2016, 40(4): 042001. doi: 10.1088/1674-1137/40/4/042001
[3]	JIANG Zhi-Jin , MA Ke , ZHANG Hai-Li , CAI Liu-Mei . Pseudorapidity distributions of the produced charged particles in nucleus-nucleus collisions at low energies at the BNL relativisticheavy ion collider. Chinese Physics C, 2014, 38(8): 084103. doi: 10.1088/1674-1137/38/8/084103
[4]	HUANG Rui-Xuan , HE Zhi-Gang , LI Wei-Wei , JIA Qi-Ka . Velocity bunching in travelling wave accelerator with low acceleration gradient. Chinese Physics C, 2014, 38(5): 057004. doi: 10.1088/1674-1137/38/5/057004
[5]	DU Meng-Lin , CHEN Wei , CHEN Xiao-Lin , ZHU Shi-Lin . Possible J^PC = 0^+- exotic states. Chinese Physics C, 2013, 37(3): 033104. doi: 10.1088/1674-1137/37/3/033104
[6]	LI Lin , LI Na , WU Yuan-Fang . Azimuthal distributions of radial momentum and velocity in relativistic heavy ion collisions. Chinese Physics C, 2012, 36(5): 423-428. doi: 10.1088/1674-1137/36/5/007
[7]	YAN Ting-Zhi , LI Shan . Transverse radius dependence for transverse velocity and elliptic flow in intermediate energy HIC. Chinese Physics C, 2011, 35(5): 459-462. doi: 10.1088/1674-1137/35/5/010
[8]	CHU Yan-Jun , HUANG Fang , ZHENG Zhu-Jun . A result on certain coset subalgebras of the βγ-system. Chinese Physics C, 2011, 35(2): 149-152. doi: 10.1088/1674-1137/35/2/008
[9]	Dmitri Diakonov . Exotic pentaquarks as Gamov—Teller resonances. Chinese Physics C, 2010, 34(9): 1298-1302. doi: 10.1088/1674-1137/34/9/028
[10]	WANG Xiang-Gao , HE Ming , SHI Guo-Zhu , LI Chao-Li , WANG Wei , ZHANG Da-Wei , HUANG Chun-Tang , SHEN Hong-Tao , WU Shao-Lei , HE Guo-Zhu , WU Shao-Yong , JIANG Shan . Primary result of ²³⁶U measurement with accelerator mass spectrometry at CIAE. Chinese Physics C, 2010, 34(2): 192-197. doi: 10.1088/1674-1137/34/2/007
[11]	SHEN Cheng-Ping (for the Belle collaboration) . XYZ particles at Belle. Chinese Physics C, 2010, 34(6): 615-620. doi: 10.1088/1674-1137/34/6/001
[12]	SUN Liang (for the BABAR collaboration) . Search for new physics in the B→K^(*)l⁺l^－ decays at BABAR. Chinese Physics C, 2010, 34(9): 1504-1507. doi: 10.1088/1674-1137/34/9/085
[13]	M. Nielsen . New exotic charmonium states. Chinese Physics C, 2010, 34(9): 1157-1162. doi: 10.1088/1674-1137/34/9/002
[14]	LIN Xu-Ling , ZHANG Jian-Bing , LUO Feng , BEI Hua , LU Shan-Liang , YU Tie-Min , DAI Zhi-Min . Preliminary result of bunch length measurement using a modified Michelson interferometer. Chinese Physics C, 2009, 33(10): 901-904. doi: 10.1088/1674-1137/33/10/015
[15]	Andreas Thomas , for the , oa MAMI , and A . Recent result from the A2 real photon facility at MAMI. Chinese Physics C, 2009, 33(12): 1120-1126. doi: 10.1088/1674-1137/33/12/012
[16]	DING Lin-Kai , HE Zuo-Xiu , HUO An-Xiang , JING Cai-Liu , KUANG Hao-Huai , LEI Yu , LI Li , MA Xin-Hua , MA Yu-Qian , QING Cheng-Rui , WANG Rui-Guang , YAO Zhi-Guo , YU Zhong-Qiang , ZHANG Chao , ZHANG Feng , ZHANG Jing , ZHU Qing-Qi . Search for exotic events from the L3+C data. Chinese Physics C, 2009, 33(9): 729-736. doi: 10.1088/1674-1137/33/9/004
[17]	ZHANG Zhen-Xia , LIU Hong-Bang , WU Ning , YU Guo-Wei , SHEN Xiao-Yan , ZHENG Han-Qing . Search for exotic state 1^－+ π₁(1400) at BESⅢ. Chinese Physics C, 2008, 32(11): 857-861. doi: 10.1088/1674-1137/32/11/001
[18]	MA Xu-Bo , FANG Shuang-Shi , ZHU Yu-Can , LU GoNG-Ru , YANG Hong-Xun . Search for Exotic States at BESⅢ. Chinese Physics C, 2005, 29(4): 329-336.
[19]	Shen Yaosong , Ren Zhongzhou . Skyrme-Hartree-Fock Calculation on Exotic Nuclei. Chinese Physics C, 1997, 21(S2): 53-62.
[20]	Yu Hong , Shen Qixing . A New Search for 1^-+ Exotic State. Chinese Physics C, 1992, 16(S1): 33-39.

Access

Get Citation

MA Xin-Hua, DING Lin-Kai, GUO Ya-Nan, HE Zuo-Xiu, HUO An-Xiang, JING Cai-Liu, KUANG Hao-Huai, MA Yu-Qian, QING Cheng-Rui, SHEN Chang-Quan, YU Zhong-Qiang, ZHANG Chao and ZHU Qing-Qi. Result of search for low velocity exotic particles[J]. Chinese Physics C, 2009, 33(8): 603-608. doi: 10.1088/1674-1137/33/8/001

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2008-11-19
Revised: 2009-02-19

Article Metric

Article Views(2926)
PDF Downloads(652)
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

Result of search for low velocity exotic particles

Corresponding author: MA Xin-Hua,

Received Date: 2008-11-19

Accepted Date: 2009-02-19

Available Online: 2009-08-05

Abstract: The L3+C experiment, taking advantage of the L3 muon magnetic spectrometer, measured the spatial tracks of charged cosmic ray particles to obtain rigidity as well as velocity. One possible low velocity exotic particle is observed. The existing uncertainties are discussed, and the flux upper limit of the low velocity exotic particles from this observation is deduced based on the assumption of a null observation. The result is 6.2×10^－10 cm^－2﹒s^－1﹒sr^－1 at 90% confidence level in the velocity range from 0.04c to 0.5c.

HTML

Reference (1)

Result of search for low velocity exotic particles

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article