Pseudoscalar mixing in J/ψ and ψ(2S) decay

  • Based on the branching fractions of J/ψ(ψ(2S))→VP from different collaborations, pseudoscalar mixing is extensively discussed with a well established phenomenological model. The mixing angle is determined to be -14° by fitting to the new world average if only quark content is considered. After taking into account the gluonic content in η and η′ simultaneously, the investigation shows that η favors only consisting of light quarks, while the gluonic content of η′ is Zη′2=0.30±0.24.

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  • [1] Nakamura K et al.(Particle Data Group).J.Phys.G,2010,37:075021[2] Donoghue J F,Golowich E,Holstein B R.Dynamics of the Standard Model.New York:Cambridge Univ.Press,1992[3] Coffman D et al.(MarkIII collaboration).Phys.Rev.D,1988,38:2695-2705[4] Jousset Jet al.(DM2 collaboration).Phys.Rev.D,1990,41:1389-1400[5] Bramon A and Scadron D.Phys.Lett.B,1990,234:346-348[6] Bramon A et al.Phys.Lett.B,1997,403:339-343; Bramon A et al.Euro.Phys.J.C,1999,7:271-278[7] Feldmann T.Int.J.Mod.Phys.A,2000,15:159-207[8] BAI J Z et al.(BES collaboration).Phys.Rev.D,2004,70:012005[9] Ablikim M et al.(BES collaboration).Phys.Rev.D,2005,71:032003[10] Ablikim M et al.(BES collaboration).Phys.Rev.D,2006,73:052007[11] Ablikim Met al.(BES collaboration).Phys.Rev.D,2004,70:112003[12] Ablikim Met al.(BES collaboration).Phys.Rev.D,2004,70:112007[13] Ablikim M et al.(BES collaboration).Phys.Lett.B,2005,614:37-43[14] Ablikim M et al.(BES collaboration).Phys.Lett.B,2005,619:247-254[15] Aubert B et al.(BABAR collaboration).Phys.Rev.D,2004,70:072004[16] Aubert Bet al.(BABAR collaboration).Phys.Rev.D,2006,73:052003[17] Aubert Bet al.(BABAR collaboration).Phys.Rev.D,2007,76:092005[18] Aubert B et al.(BABAR collaboration).Phys.Rev.D,2008,77:092002[19] Adam N E et al.(CLEO collaboration).Phys.Rev.Lett.,2005,94:012005[20] Barnett R M et al.(Particle Data Group).Phys.Rev.D,1996,54:1-708[21] Escribano R.Acta Phys.Polon.Supp.,2009,2:71-79[22] ZHAO Q,LI G,CHANG C H.Phys.Lett.B,2007,645:173-179; LI G,ZHAO Q,CHANG C H.J.Phys.G,2008,35:055002[23] Escribano R.AIP.Conf.Proc.,2008,1030:368-373[24] Thomas C E.JHEP,2007,0710:026; Escribano R.Nucl.Phys.Proc.Suppl.,2008,181-182:226-230[25] Haber H E,Perrier J.Phys.Rev.D,1985,32:2961-2970;Seiden A et al.Phys.Rev.D,1988,38:824-836[26] Escribano R,Nadal J.JHEP,2007,0705:006[27] Asner D M et al.Int.J.Mod.Phys.A Supp.,2009,24:1-794
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WEI Dai-Hui and YANG Yong-Xu. Pseudoscalar mixing in J/ψ and ψ(2S) decay[J]. Chinese Physics C, 2010, 34(12): 1785-1790. doi: 10.1088/1674-1137/34/12/002
WEI Dai-Hui and YANG Yong-Xu. Pseudoscalar mixing in J/ψ and ψ(2S) decay[J]. Chinese Physics C, 2010, 34(12): 1785-1790.  doi: 10.1088/1674-1137/34/12/002 shu
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Received: 2010-07-23
Revised: 2010-08-17
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Pseudoscalar mixing in J/ψ and ψ(2S) decay

    Corresponding author: WEI Dai-Hui,

Abstract: 

Based on the branching fractions of J/ψ(ψ(2S))→VP from different collaborations, pseudoscalar mixing is extensively discussed with a well established phenomenological model. The mixing angle is determined to be -14° by fitting to the new world average if only quark content is considered. After taking into account the gluonic content in η and η′ simultaneously, the investigation shows that η favors only consisting of light quarks, while the gluonic content of η′ is Zη′2=0.30±0.24.

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