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Evidence for X (3872) →j/ψ π+ π-Produced in Single-Tag Two-Photon Interactions
- Teramoto, Y.;
- Uehara, S.;
- Masuda, M.;
- Adachi, I.;
- Aihara, H.;
- ... Kim, Doris Yangsoo;
- 외 204명
WEB OF SCIENCE
18SCOPUS
24초록
We report the first evidence for X(3872) production in two-photon interactions by tagging either the electron or the positron in the final state, exploring the highly virtual photon region. The search is performed in e+e-→e+e-J/ψ π+ π-, using 825 fb-1 of data collected by the Belle detector operated at the KEKB e+e-collider. We observe three X(3872) candidates, where the expected background is 0.11±0.10 events, with a significance of 3.2σ. We obtain an estimated value for γB(X(3872)→J/ψ π+ π-) assuming the Q2 dependence predicted by a cc meson model, where-Q2 is the invariant mass squared of the virtual photon. No X(3915)→J/ψ π+ π-candidates are found. © 2021 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the https://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.
키워드
- 제목
- Evidence for X (3872) →j/ψ π+ π-Produced in Single-Tag Two-Photon Interactions
- 저자
- 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.; Belenõ, 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, Doris Yangsoo; 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.; Kwon, Y.-J.; Lalwani, 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.; (Belle Collaboration)
- 발행일
- 2021-03-23
- 유형
- Article
- 권
- 126
- 호
- 12
- 언어
- ENG
- 출판사
- American Physical Society
- 발행국가
- 미국
- ISSN
- E 1079-7114
P 0031-9007