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Study of e + e - → Σ 0 Σ ¯ 0 and Σ + Σ ¯ - by initial state radiation method at Belle

Gong, G. (ORCID:0000000171921833)·Li, L. K. (ORCID:0000000273661307)·Zhang, Y. (ORCID:0000000337806676)·Yan, W. (ORCID:0000000307130871)·Adachi, I. (ORCID:0000000322870173)·Aihara, H. (ORCID:0000000219075964)·Al Said, S. (ORCID:0000000248953869)·Asner, D. M. (ORCID:0000000215865790)·Atmacan, H. (ORCID:000000032435501X)·Aushev, T. (ORCID:0000000263477055)·Ayad, R. (ORCID:0000000334669290)·Babu, V. (ORCID:0000000304196912)·Banerjee, Sw (ORCID:0000000188522409)·Behera, P. (ORCID:0000000215272266)·Belous, K. (ORCID:0000000300142589)·Bennett, J. (ORCID:0000000254402668)·Bessner, M. (ORCID:0000000317760439)·Bhuyan, B. (ORCID:0000000162543594)·Bilka, T. (ORCID:0000000314496986)·Biswas, D. (ORCID:0000000275433471)·Bobrov, A. (ORCID:0000000157358386)·Bodrov, D. (ORCID:0000000152794787)·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)·Chen, Y. (ORCID:0000000220571076)·Cheon, B. G. (ORCID:0000000288034429)·Chilikin, K. (ORCID:0000000176202053)·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)·Das, S. (ORCID:000000016857966X)·De Nardo, G. (ORCID:0000000220479675)·De Pietro, G. (ORCID:000000018442107X)·Dhamija, R. (ORCID:0000000170523163)·Di Capua, F. (ORCID:0000000190765936)·Doležal, Z. (ORCID:0000000256623675)·Dong, T. V. (ORCID:0000000330431939)·Epifanov, D. (ORCID:0000000186562693)·Ferber, T. (ORCID:0000000268490427)·Ferlewicz, D. (ORCID:0000000243741234)·Fulsom, B. G. (ORCID:0000000258629739)·Garg, R. (ORCID:0000000274064707)·Gaur, V. (ORCID:0000000288806134)·Garmash, A. (ORCID:0000000325991405)·Giri, A. (ORCID:0000000288950128)·Goldenzweig, P. (ORCID:000000018785847X)·Golob, B. (ORCID:0000000196325616)·Graziani, E. (ORCID:0000000186025652)·Gudkova, K. (ORCID:0000000258583187)·Halder, S. (ORCID:000000026280494X)·Hayasaka, K. (ORCID:000000026347433X)·Hayashii, H. (ORCID:0000000251385903)·Hedges, M. T. (ORCID:0000000165041872)·Hou, W. -S. (ORCID:0000000242605118)·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)·Jacobs, W. W. (ORCID:0000000299966336)·Jang, E. -J. (ORCID:0000000219359887)·Jia, S. (ORCID:0000000181768545)·Jin, Y. (ORCID:0000000273230830)·Joo, K. K. (ORCID:0000000255150087)·Kaliyar, A. B. (ORCID:000000022211619X)·Kang, K. H. (ORCID:0000000268160751)·Kawasaki, T. (ORCID:0000000240895238)·Kiesling, C. (ORCID:000000022209535X)·Kim, C. H. (ORCID:0000000257437698)·Kim, D. Y. (ORCID:0000000181259070)·Kim, Y. -K. (ORCID:0000000296958103)·Kinoshita, K. (ORCID:0000000171754182)·Kodyš, P. (ORCID:0000000286442349)·Korobov, A. (ORCID:0000000159598172)·Korpar, S. (ORCID:0000000309710968)·Kovalenko, E. (ORCID:0000000180841931)·Križan, P. (ORCID:0000000249677675)·Krokovny, P. (ORCID:0000000212364667)·Kumar, R. (ORCID:0000000262772626)·Kumara, K. (ORCID:0000000315725365)·Kwon, Y. -J. (ORCID:0000000194485691)·Lam, T. (ORCID:0000000191286806)·Lange, J. S. (ORCID:0000000302340474)·Lee, S. C. (ORCID:0000000298351006)·Lewis, P. (ORCID:000000025991622X)·Li, C. H. (ORCID:0000000232404523)·Li, Y. (ORCID:0000000244136247)·Li, Y. B. (ORCID:0000000299092851)
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Abstract

The processes e + ⁢e - →Σ 0 ⁢$\overline{Σ}$ 0 and e + ⁢e - →Σ + ⁢$\overline{Σ}$ - are studied using initial-state-radiation events in a sample of 980 fb -1 collected with the Belle detector at the KEKB asymmetric-energy e + ⁢e - collider. The cross sections from the mass threshold to 3 GeV/c 2 and the effective form factors of Σ 0 and Σ + are measured. In the charmonium region, we observe the decays J/ψ →Σ 0 ⁢$\overline{Σ}$ 0 and J/ψ →Σ + ⁢$\overline{Σ}$ - and determine the respective branching fractions.

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Gong, G. (ORCID:0000000171921833), Li, L. K. (ORCID:0000000273661307), Zhang, Y. (ORCID:0000000337806676), Yan, W. (ORCID:0000000307130871), Adachi, I. (ORCID:0000000322870173), Aihara, H. (ORCID:0000000219075964), Al Said, S. (ORCID:0000000248953869), Asner, D. M. (ORCID:0000000215865790), Atmacan, H. (ORCID:000000032435501X), Aushev, T. (ORCID:0000000263477055), Ayad, R. (ORCID:0000000334669290), Babu, V. (ORCID:0000000304196912), Banerjee, Sw (ORCID:0000000188522409), Behera, P. (ORCID:0000000215272266), Belous, K. (ORCID:0000000300142589), Bennett, J. (ORCID:0000000254402668), Bessner, M. (ORCID:0000000317760439), Bhuyan, B. (ORCID:0000000162543594), Bilka, T. (ORCID:0000000314496986), Biswas, D. (ORCID:0000000275433471), Bobrov, A. (ORCID:0000000157358386), Bodrov, D. (ORCID:0000000152794787), 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), Chen, Y. (ORCID:0000000220571076), Cheon, B. G. (ORCID:0000000288034429), Chilikin, K. (ORCID:0000000176202053), 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), Das, S. (ORCID:000000016857966X), De Nardo, G. (ORCID:0000000220479675), De Pietro, G. (ORCID:000000018442107X), Dhamija, R. (ORCID:0000000170523163), Di Capua, F. (ORCID:0000000190765936), Doležal, Z. (ORCID:0000000256623675), Dong, T. V. (ORCID:0000000330431939), Epifanov, D. (ORCID:0000000186562693), Ferber, T. (ORCID:0000000268490427), Ferlewicz, D. (ORCID:0000000243741234), Fulsom, B. G. (ORCID:0000000258629739), Garg, R. (ORCID:0000000274064707), Gaur, V. (ORCID:0000000288806134), Garmash, A. (ORCID:0000000325991405), Giri, A. (ORCID:0000000288950128), Goldenzweig, P. (ORCID:000000018785847X), Golob, B. (ORCID:0000000196325616), Graziani, E. (ORCID:0000000186025652), Gudkova, K. (ORCID:0000000258583187), Halder, S. (ORCID:000000026280494X), Hayasaka, K. (ORCID:000000026347433X), Hayashii, H. (ORCID:0000000251385903), Hedges, M. T. (ORCID:0000000165041872), Hou, W. -S. (ORCID:0000000242605118), 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), Jacobs, W. W. (ORCID:0000000299966336), Jang, E. -J. (ORCID:0000000219359887), Jia, S. (ORCID:0000000181768545), Jin, Y. (ORCID:0000000273230830), Joo, K. K. (ORCID:0000000255150087), Kaliyar, A. B. (ORCID:000000022211619X), Kang, K. H. (ORCID:0000000268160751), Kawasaki, T. (ORCID:0000000240895238), Kiesling, C. (ORCID:000000022209535X), Kim, C. H. (ORCID:0000000257437698), Kim, D. Y. (ORCID:0000000181259070), Kim, Y. -K. (ORCID:0000000296958103), Kinoshita, K. (ORCID:0000000171754182), Kodyš, P. (ORCID:0000000286442349), Korobov, A. (ORCID:0000000159598172), Korpar, S. (ORCID:0000000309710968), Kovalenko, E. (ORCID:0000000180841931), Križan, P. (ORCID:0000000249677675), Krokovny, P. (ORCID:0000000212364667), Kumar, R. (ORCID:0000000262772626), Kumara, K. (ORCID:0000000315725365), Kwon, Y. -J. (ORCID:0000000194485691), Lam, T. (ORCID:0000000191286806), Lange, J. S. (ORCID:0000000302340474), Lee, S. C. (ORCID:0000000298351006), Lewis, P. (ORCID:000000025991622X), Li, C. H. (ORCID:0000000232404523), Li, Y. (ORCID:0000000244136247), Li, Y. B. (ORCID:0000000299092851). 2023-04-28. Study of e + e - → Σ 0 Σ ¯ 0 and Σ + Σ ¯ - by initial state radiation method at Belle. https://doi.org/10.1103/physrevd.107.072008

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