On the nature of &chi;c2(2P) two-gluon decay

N. N. Achasov; Xian-Wei Kang

doi:10.1088/1674-1137/41/12/123102

Chinese Physics C> 2017, Vol. 41> Issue(12) : 123102 DOI: 10.1088/1674-1137/41/12/123102

On the nature of χ_c2(2P) two-gluon decay

N. N. Achasov ² ,
Xian-Wei Kang ^1,3,,

1.
Laboratory of Theoretical Physics, Sobolev Institute for Mathematics, 630090, Novosibirsk
2.
College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
3.
Institute of Physics, Academia Sinica, 115 Taipei

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Abstract：
We expect that BR(χ_c2(2P)→ gluongluon)≥ 2% if the Particle Data Group as well as the BaBar and Belle collaborations have correctly identified the state. In reality, this branching ratio corresponds to the one for χ_c2(2P) decaying into light hadrons. We also discuss the detection possibilities of these decays.
- charmonium ,
- branching ratio ,
- two-gluon decay mode

References

[1]	S. Uehara et al (Belle Callaboration), Phys. Rev. Lett., 99:082003(2006)
[2]	C. Patrignani et al (Particle Data Group), Chin. Phys. C, 40:100001(2016) and 2017 update
[3]	B. Aubert et al (BABAR Callaboration), Phys. Rev. D, 81:092003(2010)
[4]	P. del Amo Sanchez et al (BaBar Collaboration), Phys. Rev. D, 84:012004(2011)
[5]	J. P. Lees et al (BaBar Collaboration), Phys. Rev. D, 86:092005(2012)
[6]	S. Uehara et al (Belle Collaboration), PTEP, 2013(12):123C01(2013)
[7]	V. A. Novikov, L. B. Okun, M. A. Shifman, A. I. Vainshtein, M. B. Voloshin and V. I. Zakharov, Phys. Rept., 41:1(1978)
[8]	W. Kwong, P. B. Mackenzie, R. Rosenfeld, and J. L. Rosner, Phys. Rev. D, 37:3210(1988)
[9]	P. P. D'Souza, M. Bhat, A. P. Monteiro, and K. B. Vijaya Kumar, arXiv:1703.10413[hep-ph]

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N. N. Achasov and Xian-Wei Kang. On the nature of χ_c2(2P) two-gluon decay[J]. Chinese Physics C, 2017, 41(12): 123102. doi: 10.1088/1674-1137/41/12/123102

N. N. Achasov and Xian-Wei Kang. On the nature of χ_c2(2P) two-gluon decay[J]. Chinese Physics C, 2017, 41(12): 123102. doi: 10.1088/1674-1137/41/12/123102 shu

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Received: 2017-08-10

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N.N. Achasov was supported in part by RFBR, (16-02-00065), and by Presidium of the Russian Academy of Sciences, Project (0314-2015-0011), XWK's work is supported by MOST, Taiwan, (104-2112-M-001-022)

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沈阳化工大学材料科学与工程学院沈阳 110142

On the nature of χ_c2(2P) two-gluon decay

N. N. Achasov ^2,
Xian-Wei Kang ^1,3,,

Corresponding author: Xian-Wei Kang,

1. Laboratory of Theoretical Physics, Sobolev Institute for Mathematics, 630090, Novosibirsk
2. College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875
3. Institute of Physics, Academia Sinica, 115 Taipei

Received Date: 2017-08-10
Available Online: 2017-12-05

Fund Project: N.N. Achasov was supported in part by RFBR, (16-02-00065), and by Presidium of the Russian Academy of Sciences, Project (0314-2015-0011), XWK's work is supported by MOST, Taiwan, (104-2112-M-001-022)

Abstract: We expect that BR(χ_c2(2P)→ gluongluon)≥ 2% if the Particle Data Group as well as the BaBar and Belle collaborations have correctly identified the state. In reality, this branching ratio corresponds to the one for χ_c2(2P) decaying into light hadrons. We also discuss the detection possibilities of these decays.