Recent results on hadron spectroscopy from BES

  • The BES-Ⅲ Detector is a very versatile multipurpose device located at the Institute of High Energy Physics (IHEP) in Beijing, China. Concerning the physics program it ties stringently up to the past BES and BES-Ⅱ experiments. Since start of the data taking in the middle of 2008 the accumulated dataset of 200・
    106 J/ψ events and 100・106 ψ′ events already exceeds the world data on these resonances. In addition to studies of the charmonium systems the data offers great opportunity for investigations in the light hadron sector. In detail it will be reported about the confirmation of the enhancement in pp invariant mass in radiative J/ψ decays, the search for decays Y(2175)→ K*0K*0, observation of a charged κ± in K±π0 and observation of a new excited baryon N*(2065) decaying to pπ0 and charged conjugate. The first result is based on data taken by BES-Ⅱ and BES-Ⅲ, the latter three on data collected by BES-Ⅱ only.

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  • [1] . Danilov M, Mizuk R. hep-ex/0704.3531v22. BAI J Z et al (BES collaboration). Nucl. Instr. and Meth.A, 2001, 458: 6273. BES-0 collaboration. The Preliminary Design Report ofthe BES-0 Detector. Report No. IHEP-BEPC/-SB-134. BAI J Z et al (BES collaboration). Phys. Rev. Lett., 2003,91: 0220015. Fermi E, YANG C N. Phys. Rev., 1949, 17396. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2007, 99: 0118027. AblikimM et al (BES collaboration). Eur. Phys. J. C, 2008,53: 158. Athar S B et al (CLEO-c collaboration). Phys. Rev. D,2006, 73: 0320019. Aubert B et al (BABAR collaboration). Phys. Rev. D 2006,74: 09110310. Aubert B et al (BABAR collaboration). Phys. Rev. D,2007, 76: 01200811. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2008, 100: 10200312. Aubert B et al (BABAR collaboration). Phys. Rev. Lett.,2005, 95: 14200113. YUAN C Z et al (Belle collaboration). Phys. Rev. Lett.,2007, 99: 18200414. ZHU S L. Phys. Lett. B, 2005, 625: 21215. Close F E, Page P R. Phys. Lett. B, 2005, 628: 21516. Kou E, Pene O. Phys. Lett. B, 2005, 631: 16417. Llanes-Estrada F J, Phys. Rev. D, 2005, 72: 03150318. Maiani L et al. Phys. Rev. D, 2005, 72: 03150219. DING G J, YAN M L. Phys. Lett. B, 2007, 650: 39020. DING G J, YAN M L. Phys. Lett. B, 2007, 657: 4921. WANG Z G. Nucl. Phys. A, 2007, 791: 10622. DING G J, YAN M L. Phys. Lett. B, 2007, 650: 39023. Ablikim M et al (BES collaboration). hep-ex/0909.208724. Tornqvist N A. Proc. Workshop at Yukawa Institute, Kyoto.KEK Proceedings 2000-4, ed. S. Ishida et al. 22425. Aitala E M et al (E791 collaboration). Phys. Rev. Lett.,2001, 86: 77026. BAI J Z et al (BES collaboration). High Energy Phys. Nucl.Phys., 2004, 28: 215 (in Chinese)27. Ablikim M et al (BES collaboration). Phys. Lett. B, 2004,598: 14928. Ablikim M et al (BES collaboration). Phys. Lett. B, 2006,633: 68129. van Beveren E et al. Z. Phys. C, 1986, 30: 65130. Bediaga I (E791 collaboration). hep-ex/0208039v131. Link J M et al (FOCUS collaboration). hep-ex/0510053v132. Kopp S et al (CLEO collaboration). Phys. Rev. D, 2001,63: 09200133. Cawl eld C et al (CLEO collaboration). Phys. Rev. D,2006,74: 03110834. Aubert B et al (BABAR collaboration). Phys. Rev. D,2007, 76: 01110235. ZHENG H Q et al. Nucl. Phys. A, 2004, 733: 23536. Cawl eld C et al (CLEO collaboration). Phys. Rev. D,2006, 74: 03110837. Ablikim M et al (BES collaboration). Phys. Rev. Lett.,2006, 97: 06200138. Ablikim M et al (BES collaboration). hep-ex/0905.1562v439. Amsler C et al (Particle Data Group). Phys. Lett. B, 2008,667: 1
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Klaus Götzen (on behalf of the BES-Ⅲ collaboration). Recent results on hadron spectroscopy from BES[J]. Chinese Physics C, 2010, 34(6): 638-643. doi: 10.1088/1674-1137/34/6/005
Klaus Götzen (on behalf of the BES-Ⅲ collaboration). Recent results on hadron spectroscopy from BES[J]. Chinese Physics C, 2010, 34(6): 638-643.  doi: 10.1088/1674-1137/34/6/005 shu
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Received: 2010-01-25
Revised: 1900-01-01
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Recent results on hadron spectroscopy from BES

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The BES-Ⅲ Detector is a very versatile multipurpose device located at the Institute of High Energy Physics (IHEP) in Beijing, China. Concerning the physics program it ties stringently up to the past BES and BES-Ⅱ experiments. Since start of the data taking in the middle of 2008 the accumulated dataset of 200・
106 J/ψ events and 100・106 ψ′ events already exceeds the world data on these resonances. In addition to studies of the charmonium systems the data offers great opportunity for investigations in the light hadron sector. In detail it will be reported about the confirmation of the enhancement in pp invariant mass in radiative J/ψ decays, the search for decays Y(2175)→ K*0K*0, observation of a charged κ± in K±π0 and observation of a new excited baryon N*(2065) decaying to pπ0 and charged conjugate. The first result is based on data taken by BES-Ⅱ and BES-Ⅲ, the latter three on data collected by BES-Ⅱ only.

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