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Study of e + e - → η Φ via initial state radiation at Belle

Zhu, W. J. (ORCID:0000000326180436)·Gao, B. S. (ORCID:0000000281430330)·Wang, X. L. (ORCID:0000000158051255)·Adachi, I. (ORCID:0000000322870173)·Aihara, H. (ORCID:0000000219075964)·Asner, D. M. (ORCID:0000000215865790)·Atmacan, H. (ORCID:000000032435501X)·Aushev, T. (ORCID:0000000263477055)·Babu, V. (ORCID:0000000304196912)·Bahinipati, S. (ORCID:0000000237445332)·Behera, P. (ORCID:0000000215272266)·Belous, K. (ORCID:0000000300142589)·Bennett, J. (ORCID:0000000254402668)·Bessner, M. (ORCID:0000000317760439)·Bhardwaj, V. (ORCID:0000000188578621)·Bilka, T. (ORCID:0000000314496986)·Bodrov, D. (ORCID:0000000152794787)·Bonvicini, G. (ORCID:0000000348617918)·Borah, J. (ORCID:0000000329901913)·Bozek, A. (ORCID:0000000259151319)·Bračko, M. (ORCID:0000000224950524)·Branchini, P. (ORCID:0000000222709673)·Browder, T. E. (ORCID:0000000173579007)·Budano, A. (ORCID:0000000208561131)·Campajola, M. (ORCID:0000000325187134)·Červenkov, D. (ORCID:000000021865741X)·Chang, M. -C. (ORCID:0000000286506058)·Chen, A. (ORCID:0000000285449274)·Cheon, B. G. (ORCID:0000000288034429)·Chilikin, K. (ORCID:0000000176202053)·Cho, H. E. (ORCID:0000000270083759)·Cho, K. (ORCID:0000000317057399)·Cho, S. -J. (ORCID:0000000216735664)·Choi, S. -K. (ORCID:0000000327478277)·Choi, Y. (ORCID:0000000334997948)·Choudhury, S. (ORCID:0000000198410216)·Cinabro, D. (ORCID:0000000173476585)·De Pietro, G. (ORCID:000000018442107X)·Dhamija, R. (ORCID:0000000170523163)·Di Capua, F. (ORCID:0000000190765936)·Dingfelder, J. (ORCID:0000000157672121)·Doležal, Z. (ORCID:0000000256623675)·Dong, T. V. (ORCID:0000000330431939)·Epifanov, D. (ORCID:0000000186562693)·Ferlewicz, D. (ORCID:0000000243741234)·Fulsom, B. G. (ORCID:0000000258629739)·Gaur, V. (ORCID:0000000288806134)·Garmash, A. (ORCID:0000000325991405)·Giri, A. (ORCID:0000000288950128)·Goldenzweig, P. (ORCID:000000018785847X)·Graziani, E. (ORCID:0000000186025652)·Gu, T. (ORCID:0000000214706536)·Gudkova, K. (ORCID:0000000258583187)·Hadjivasiliou, C. (ORCID:0000000222340001)·Halder, S. (ORCID:000000026280494X)·Hara, T. (ORCID:0000000243210417)·Hayasaka, K. (ORCID:000000026347433X)·Hayashii, H. (ORCID:0000000251385903)·Hsu, C. -L. (ORCID:000000021641430X)·Inami, K. (ORCID:0000000327657072)·Ipsita, N. (ORCID:0000000229273366)·Ishikawa, A. (ORCID:0000000235615633)·Itoh, R. (ORCID:0000000315900266)·Iwasaki, M. (ORCID:0000000294027559)·Iwasaki, Y. (ORCID:0000000172612557)·Jacobs, W. W. (ORCID:0000000299966336)·Jang, E. -J. (ORCID:0000000219359887)·Ji, Q. P. (ORCID:0000000329632565)·Jia, S. (ORCID:0000000181768545)·Jin, Y. (ORCID:0000000273230830)·Joo, K. K. (ORCID:0000000255150087)·Kang, K. H. (ORCID:0000000268160751)·Kiesling, C. (ORCID:000000022209535X)·Kim, C. H. (ORCID:0000000257437698)·Kim, D. Y. (ORCID:0000000181259070)·Kim, K. -H. (ORCID:0000000246591112)·Kim, Y. -K. (ORCID:0000000296958103)·Kinoshita, K. (ORCID:0000000171754182)·Kodyš, P. (ORCID:0000000286442349)·Konno, T. (ORCID:0000000324878080)·Korobov, A. (ORCID:0000000159598172)·Korpar, S. (ORCID:0000000309710968)·Kovalenko, E. (ORCID:0000000180841931)·Križan, P. (ORCID:0000000249677675)·Krokovny, P. (ORCID:0000000212364667)·Kumar, M. (ORCID:0000000266279708)·Kumar, R. (ORCID:0000000262772626)·Kumara, K. (ORCID:0000000315725365)·Kuzmin, A. (ORCID:0000000270115044)·Kwon, Y. -J. (ORCID:0000000194485691)·Lalwani, K. (ORCID:000000027294396X)·Lam, T. (ORCID:0000000191286806)·Laurenza, M. (ORCID:0000000274006013)·Lee, S. C. (ORCID:0000000298351006)·Li, J. (ORCID:0000000155205394)·Li, L. K. (ORCID:0000000273661307)·Li, Y. (ORCID:0000000244136247)·Li Gioi, L. (ORCID:0000000320245649)·Libby, J. (ORCID:0000000212193247)·Lieret, K. (ORCID:0000000327927511)
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Abstract

Using 980 fb -1 of data collected on and around the (n = 1, 2, 3, 4, 5) resonances with the Belle detector at the KEKB collider, we measure the cross section of e + ⁢e - → η⁢Φ from threshold to 3.95 GeV via initial state radiation. There are clear Φ⁡(1680) and J/ψ signals but no significant Φ⁡(2170) signal in the ηΦ final state. The branching fraction $\mathscr{B}$⁡[J/ψ →η⁢Φ] is measured to be (7.2 ±0.8 ±0.5) ×10 -4 . The resonant parameters of Φ⁡(1680) are determined to be m Φ(1680) = (1696±8±10) MeV/c 2 (statistical and systematic errors, respectively), Γ Φ⁡(1680) =(175±13±16) MeV and, depending on the possible presence of predominantly constructive or destructive interference between Φ⁡(1680) and continuum production, Γ$^{e^+e^-}_{Φ⁡(1680)}$·$\mathscr{B}$⁡[Φ⁡(1680)→ηΦ] and $\mathscr{B}$⁡[Φ(1680)→η⁢Φ] are determined to be (75 ±10 ±11) eV and (25±12±2)% or (207±16±20) eV and (23 ±10 ±2)%, respectively. The upper limit for Γ$^{e^+e^-}_{Φ⁡(2170)}$·$\mathscr{B}$⁡[Φ⁡(2170) → ηΦ] is determined to be either 0.17 or 18.6 eV at the 90% confidence level.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDSHadronic decaysMultiquark bound statesQuark modelTotal cross sections

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BibTeXRIS

Zhu, W. J. (ORCID:0000000326180436), Gao, B. S. (ORCID:0000000281430330), Wang, X. L. (ORCID:0000000158051255), Adachi, I. (ORCID:0000000322870173), Aihara, H. (ORCID:0000000219075964), Asner, D. M. (ORCID:0000000215865790), Atmacan, H. (ORCID:000000032435501X), Aushev, T. (ORCID:0000000263477055), Babu, V. (ORCID:0000000304196912), Bahinipati, S. (ORCID:0000000237445332), Behera, P. (ORCID:0000000215272266), Belous, K. (ORCID:0000000300142589), Bennett, J. (ORCID:0000000254402668), Bessner, M. (ORCID:0000000317760439), Bhardwaj, V. (ORCID:0000000188578621), Bilka, T. (ORCID:0000000314496986), Bodrov, D. (ORCID:0000000152794787), Bonvicini, G. (ORCID:0000000348617918), Borah, J. (ORCID:0000000329901913), Bozek, A. (ORCID:0000000259151319), Bračko, M. (ORCID:0000000224950524), Branchini, P. (ORCID:0000000222709673), Browder, T. E. (ORCID:0000000173579007), Budano, A. (ORCID:0000000208561131), Campajola, M. (ORCID:0000000325187134), Červenkov, D. (ORCID:000000021865741X), Chang, M. -C. (ORCID:0000000286506058), Chen, A. (ORCID:0000000285449274), Cheon, B. G. (ORCID:0000000288034429), Chilikin, K. (ORCID:0000000176202053), Cho, H. E. (ORCID:0000000270083759), Cho, K. (ORCID:0000000317057399), Cho, S. -J. (ORCID:0000000216735664), Choi, S. -K. (ORCID:0000000327478277), Choi, Y. (ORCID:0000000334997948), Choudhury, S. (ORCID:0000000198410216), Cinabro, D. (ORCID:0000000173476585), De Pietro, G. (ORCID:000000018442107X), Dhamija, R. (ORCID:0000000170523163), Di Capua, F. (ORCID:0000000190765936), Dingfelder, J. (ORCID:0000000157672121), Doležal, Z. (ORCID:0000000256623675), Dong, T. V. (ORCID:0000000330431939), Epifanov, D. (ORCID:0000000186562693), Ferlewicz, D. (ORCID:0000000243741234), Fulsom, B. G. (ORCID:0000000258629739), Gaur, V. (ORCID:0000000288806134), Garmash, A. (ORCID:0000000325991405), Giri, A. (ORCID:0000000288950128), Goldenzweig, P. (ORCID:000000018785847X), Graziani, E. (ORCID:0000000186025652), Gu, T. (ORCID:0000000214706536), Gudkova, K. (ORCID:0000000258583187), Hadjivasiliou, C. (ORCID:0000000222340001), Halder, S. (ORCID:000000026280494X), Hara, T. (ORCID:0000000243210417), Hayasaka, K. (ORCID:000000026347433X), Hayashii, H. (ORCID:0000000251385903), Hsu, C. -L. (ORCID:000000021641430X), Inami, K. (ORCID:0000000327657072), Ipsita, N. (ORCID:0000000229273366), Ishikawa, A. (ORCID:0000000235615633), Itoh, R. (ORCID:0000000315900266), Iwasaki, M. (ORCID:0000000294027559), Iwasaki, Y. (ORCID:0000000172612557), Jacobs, W. W. (ORCID:0000000299966336), Jang, E. -J. (ORCID:0000000219359887), Ji, Q. P. (ORCID:0000000329632565), Jia, S. (ORCID:0000000181768545), Jin, Y. (ORCID:0000000273230830), Joo, K. K. (ORCID:0000000255150087), Kang, K. H. (ORCID:0000000268160751), Kiesling, C. (ORCID:000000022209535X), Kim, C. H. (ORCID:0000000257437698), Kim, D. Y. (ORCID:0000000181259070), Kim, K. -H. (ORCID:0000000246591112), Kim, Y. -K. (ORCID:0000000296958103), Kinoshita, K. (ORCID:0000000171754182), Kodyš, P. (ORCID:0000000286442349), Konno, T. (ORCID:0000000324878080), Korobov, A. (ORCID:0000000159598172), Korpar, S. (ORCID:0000000309710968), Kovalenko, E. (ORCID:0000000180841931), Križan, P. (ORCID:0000000249677675), Krokovny, P. (ORCID:0000000212364667), Kumar, M. (ORCID:0000000266279708), Kumar, R. (ORCID:0000000262772626), Kumara, K. (ORCID:0000000315725365), Kuzmin, A. (ORCID:0000000270115044), Kwon, Y. -J. (ORCID:0000000194485691), Lalwani, K. (ORCID:000000027294396X), Lam, T. (ORCID:0000000191286806), Laurenza, M. (ORCID:0000000274006013), Lee, S. C. (ORCID:0000000298351006), Li, J. (ORCID:0000000155205394), Li, L. K. (ORCID:0000000273661307), Li, Y. (ORCID:0000000244136247), Li Gioi, L. (ORCID:0000000320245649), Libby, J. (ORCID:0000000212193247), Lieret, K. (ORCID:0000000327927511). 2023-01-27. Study of e + e - → η Φ via initial state radiation at Belle. https://doi.org/10.1103/physrevd.107.012006

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