Evidence for X(3872)→J/ψπ+π− produced in single-tag two-photon interactions

Belle Collaboration,; Teramoto, Y.; Uehara, S.; Masuda, M.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D.M.; Atmacan, H.; Aushev, T.; Ayad, R.; Babu, V.; Behera, P.; Beleño, C.; Bennett, J.; Bhardwaj, V.; Bhuyan, B.; Bilka, T.; Biswal, J.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T.E.; Campajola, M.; Červenkov, D.; Chang, M.-C.; Chang, P.; Chekelian, V.; Chen, A.; Cheon, B.G.; Chilikin, K.; Cho, K.; Cho, S.-J.; Choi, S.-K.; Choi, Y.; Choudhury, S.; Cinabro, D.; Cunliffe, S.; De Nardo, G.; Di Capua, F.; Doležal, Z.; Dong, T.V.; Eidelman, S.; Ferber, T.; Fulsom, B.G.; Garg, R.; Gaur, V.; Gabyshev, N.; Garmash, A.; Giri, A.; Goldenzweig, P.; Greenwald, D.; Hadjivasiliou, C.; Hara, T.; Hartbrich, O.; Hayasaka, K.; Hayashii, H.; Hedges, M.T.; Hernandez Villanueva, M.; Hou, W.-S.; Hsu, C.-L.; Iijima, T.; Inami, K.; Inguglia, G.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Jacobs, W.W.; Jang, E.-J.; Jia, S.; Jin, Y.; Joo, C.W.; Joo, K.K.; Kahn, J.; Kaliyar, A.B.; Kang, K.H.; Karyan, G.; Kato, Y.; Kawasaki, T.; Kichimi, H.; Kiesling, C.; Kim, B.H.; Kim, D.Y.; Kim, S.H.; Kim, Y.-K.; Kimmel, T.D.; Kinoshita, K.; Kodyš, P.; Korpar, S.; Kotchetkov, D.; Križan, P.; Kroeger, R.; Krokovny, P.; Kuhr, T.; Kulasiri, R.; Kumar, R.; Kumara, K.; Kuzmin, A.; Lalwani, Y.-J.Kwon K.; Lange, J.S.; Lee, I.S.; Lee, S.C.; Lewis, P.; Li, L.K.; Li, Y.B.; Li Gioi, L.; Libby, J.; Lieret, K.; Liptak, Z.; Liventsev, D.; Luo, T.; MacQueen, C.; Matsuda, T.; Matvienko, D.; Merola, M.; Miyabayashi, K.; Miyata, H.; Mohanty, G.B.; Mohanty, S.; Moon, T.J.; Mori, T.; Mrvar, M.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Natochii, A.; Nayak, M.; Nisar, N.K.; Nishida, S.; Ogawa, K.; Ogawa, S.; Ono, H.; Onuki, Y.; Pakhlov, P.; Pakhlova, G.; Pardi, S.; Park, H.; Park, S.-H.; Patra, S.; Paul, S.; Pedlar, T.K.; Pestotnik, R.; Piilonen, L.E.; Podobnik, T.; Popov, V.; Prencipe, E.; Prim, M.T.; Ritter, M.; Rostomyan, A.; Rout, N.; Russo, G.; Sahoo, D.; Sakai, Y.; Sandilya, S.; Sangal, A.; Santelj, L.; Sanuki, T.; Savinov, V.; Schnell, G.; Schueler, J.; Schwanda, C.; Seino, Y.; Senyo, K.; Sevior, M.E.; Shapkin, M.; Shebalin, V.; Shiu, J.-G.; Singh, J.B.; Solovieva, E.; Starič, M.; Stottler, Z.S.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Sutcliffe, W.; Takizawa, M.; Tamponi, U.; Tenchini, F.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Usov, Y.; Van Tonder, R.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Waheed, E.; Wang, C.H.; Wang, E.; Wang, M.-Z.; Wang, P.; Wang, X.L.; Watanabe, M.; Won, E.; Xu, X.; Yabsley, B.D.; Yang, S.B.; Ye, H.; Yelton, J.; Yin, J.H.; Zhang, Z.P.; Zhilich, V.; Zhukova, V.; Zhulanov, V.

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Evidence for X(3872)→J/ψπ+π− produced in single-tag two-photon interactions

Belle Collaboration, Teramoto, Y., Uehara, S., Masuda, M., Adachi, I., Aihara, H., et al. (2021). Evidence for X(3872)→J/ψπ+π− produced in single-tag two-photon interactions. Physical Review Letters, 126, 122001. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2020-380.

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Item Permalink: https://hdl.handle.net/21.11116/0000-000A-1A74-7 Version Permalink: https://hdl.handle.net/21.11116/0000-000A-1A75-6

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Belle Collaboration¹, Author
Teramoto, Y.¹, Author
Uehara, S.¹, Author
Masuda, M.¹, Author
Adachi, I.¹, Author
Aihara, H.¹, Author
Al Said, S.¹, Author
Asner, D.M.¹, Author
Atmacan, H.¹, Author
Aushev, T.¹, Author
Ayad, R.¹, Author
Babu, V.¹, Author
Behera, P.¹, Author
Beleño, C.¹, Author
Bennett, J.¹, Author
Bhardwaj, V.¹, Author
Bhuyan, B.¹, Author
Bilka, T.¹, Author
Biswal, J.¹, Author
Bonvicini, G.¹, Author
Bozek, A.¹, AuthorBračko, M.¹, AuthorBrowder, T.E.¹, AuthorCampajola, M.¹, AuthorČervenkov, D.¹, AuthorChang, M.-C.¹, AuthorChang, P.¹, AuthorChekelian, V.¹, AuthorChen, A.¹, AuthorCheon, B.G.¹, AuthorChilikin, K.¹, AuthorCho, K.¹, AuthorCho, S.-J.¹, AuthorChoi, S.-K.¹, AuthorChoi, Y.¹, AuthorChoudhury, S.¹, AuthorCinabro, D.¹, AuthorCunliffe, S.¹, AuthorDe Nardo, G.¹, AuthorDi Capua, F.¹, AuthorDoležal, Z.¹, AuthorDong, T.V.¹, AuthorEidelman, S.¹, AuthorFerber, T.¹, AuthorFulsom, B.G.¹, AuthorGarg, R.¹, AuthorGaur, V.¹, AuthorGabyshev, N.¹, AuthorGarmash, A.¹, AuthorGiri, A.¹, AuthorGoldenzweig, P.¹, AuthorGreenwald, D.¹, AuthorHadjivasiliou, C.¹, AuthorHara, T.¹, AuthorHartbrich, O.¹, AuthorHayasaka, K.¹, AuthorHayashii, H.¹, AuthorHedges, M.T.¹, AuthorHernandez Villanueva, M.¹, AuthorHou, W.-S.¹, AuthorHsu, C.-L.¹, AuthorIijima, T.¹, AuthorInami, K.¹, AuthorInguglia, G.¹, AuthorIshikawa, A.¹, AuthorItoh, R.¹, AuthorIwasaki, M.¹, AuthorIwasaki, Y.¹, AuthorJacobs, W.W.¹, AuthorJang, E.-J.¹, AuthorJia, S.¹, AuthorJin, Y.¹, AuthorJoo, C.W.¹, AuthorJoo, K.K.¹, AuthorKahn, J.¹, AuthorKaliyar, A.B.¹, AuthorKang, K.H.¹, AuthorKaryan, G.¹, AuthorKato, Y.¹, AuthorKawasaki, T.¹, AuthorKichimi, H.¹, AuthorKiesling, C.¹, AuthorKim, B.H.¹, AuthorKim, D.Y.¹, AuthorKim, S.H.¹, AuthorKim, Y.-K.¹, AuthorKimmel, T.D.¹, AuthorKinoshita, K.¹, AuthorKodyš, P.¹, AuthorKorpar, S.¹, AuthorKotchetkov, D.¹, AuthorKrižan, P.¹, AuthorKroeger, R.¹, AuthorKrokovny, P.¹, AuthorKuhr, T.¹, AuthorKulasiri, R.¹, AuthorKumar, R.¹, AuthorKumara, K.¹, AuthorKuzmin, A.¹, AuthorLalwani, Y.-J.Kwon K.¹, AuthorLange, J.S.¹, AuthorLee, I.S.¹, AuthorLee, S.C.¹, AuthorLewis, P.¹, AuthorLi, L.K.¹, AuthorLi, Y.B.¹, AuthorLi Gioi, L.¹, AuthorLibby, J.¹, AuthorLieret, K.¹, AuthorLiptak, Z.¹, AuthorLiventsev, D.¹, AuthorLuo, T.¹, AuthorMacQueen, C.¹, AuthorMatsuda, T.¹, AuthorMatvienko, D.¹, AuthorMerola, M.¹, AuthorMiyabayashi, K.¹, AuthorMiyata, H.¹, AuthorMohanty, G.B.¹, AuthorMohanty, S.¹, AuthorMoon, T.J.¹, AuthorMori, T.¹, AuthorMrvar, M.¹, AuthorMussa, R.¹, AuthorNakano, E.¹, AuthorNakao, M.¹, AuthorNakazawa, H.¹, AuthorNatkaniec, Z.¹, AuthorNatochii, A.¹, AuthorNayak, M.¹, AuthorNisar, N.K.¹, AuthorNishida, S.¹, AuthorOgawa, K.¹, AuthorOgawa, S.¹, AuthorOno, H.¹, AuthorOnuki, Y.¹, AuthorPakhlov, P.¹, AuthorPakhlova, G.¹, AuthorPardi, S.¹, AuthorPark, H.¹, AuthorPark, S.-H.¹, AuthorPatra, S.¹, AuthorPaul, S.¹, AuthorPedlar, T.K.¹, AuthorPestotnik, R.¹, AuthorPiilonen, L.E.¹, AuthorPodobnik, T.¹, AuthorPopov, V.¹, AuthorPrencipe, E.¹, AuthorPrim, M.T.¹, AuthorRitter, M.¹, AuthorRostomyan, A.¹, AuthorRout, N.¹, AuthorRusso, G.¹, AuthorSahoo, D.¹, AuthorSakai, Y.¹, AuthorSandilya, S.¹, AuthorSangal, A.¹, AuthorSantelj, L.¹, AuthorSanuki, T.¹, AuthorSavinov, V.¹, AuthorSchnell, G.¹, AuthorSchueler, J.¹, AuthorSchwanda, C.¹, AuthorSeino, Y.¹, AuthorSenyo, K.¹, AuthorSevior, M.E.¹, AuthorShapkin, M.¹, AuthorShebalin, V.¹, AuthorShiu, J.-G.¹, AuthorSingh, J.B.¹, AuthorSolovieva, E.¹, AuthorStarič, M.¹, AuthorStottler, Z.S.¹, AuthorSumihama, M.¹, AuthorSumisawa, K.¹, AuthorSumiyoshi, T.¹, AuthorSutcliffe, W.¹, AuthorTakizawa, M.¹, AuthorTamponi, U.¹, AuthorTenchini, F.¹, AuthorUchida, M.¹, AuthorUglov, T.¹, AuthorUnno, Y.¹, AuthorUno, S.¹, AuthorUrquijo, P.¹, AuthorUsov, Y.¹, AuthorVan Tonder, R.¹, AuthorVarner, G.¹, AuthorVinokurova, A.¹, AuthorVorobyev, V.¹, AuthorWaheed, E.¹, AuthorWang, C.H.¹, AuthorWang, E.¹, AuthorWang, M.-Z.¹, AuthorWang, P.¹, AuthorWang, X.L.¹, AuthorWatanabe, M.¹, AuthorWon, E.¹, AuthorXu, X.¹, AuthorYabsley, B.D.¹, AuthorYang, S.B.¹, AuthorYe, H.¹, AuthorYelton, J.¹, AuthorYin, J.H.¹, AuthorZhang, Z.P.¹, AuthorZhilich, V.¹, AuthorZhukova, V.¹, AuthorZhulanov, V.¹, Author more..

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1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650

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Free keywords: Belle

Abstract: We report the first evidence for $X(3872)$ production in two-photon interactions by tagging either the electron or the position in the final state, exploring the highly virtual photon region. The search is performed in $e^+e^- \rightarrow e^+e^-J/\psi\pi^+\pi^-$, using 825 fb$^{-1}$ of data collected by the Belle detector operated at the KEKB $e^+e^-$ collider. We observe three $X(3872)$ candidates with an expected background of $0.11\pm 0.10$ events, with a significance of 3.2$\sigma$. We obtain an estimated value for $\tilde{\Gamma}_{\gamma\gamma}{\cal B}(X(3872)\rightarrow J/\psi\pi^+\pi^-$) assuming the $Q^2$ dependence predicted by a $c\bar{c}$ meson model, where $-Q^2$ is the invariant mass-squared of the virtual photon. No $X(3915)\rightarrow J/\psi\pi^+\pi^-$ candidates are found.

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Dates: Date issued: 2021

Publication Status: Issued

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Identifiers: Other: MPP-2020-380
URI: https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2020-380
arXiv: arxiv:2007.05696
URI: https://inspirehep.net/literature?q=find%20eprint%202007.05696

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Title: Physical Review Letters

Abbreviation : Phys.Rev.Lett.

Source Genre: Journal

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Pages: - Volume / Issue: 126 Sequence Number: - Start / End Page: 122001 Identifier: -