$Measurement of the branching fraction of the decay J / ψ → p p ¯ η$

Measurement of the branching fraction of the decay J / ψ → p p ¯ η

A high-precision measurement of the branching fraction of the decay J / ψ → p p ¯ η is performed using ( 10 087 ± 44 ) × 10 6 J / ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of the two decays J / ψ → p p ¯ η ( η → γ γ ) and J / ψ → p p ¯ η ( η → π...

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Veröffentlicht in:	Physical review. D 2024-10, Vol.110 (7), Article 072021
Hauptverfasser:	Ablikim, M., Achasov, M. N., Adlarson, P., Afedulidis, O., Ai, X. C., Aliberti, R., Amoroso, A., An, Q., Bai, Y., Bakina, O., Balossino, I., Ban, Y., Bao, H.-R., Batozskaya, V., Begzsuren, K., Berger, N., Berlowski, M., Bertani, M., Bettoni, D., Bianchi, F., Bianco, E., Bortone, A., Boyko, I., Briere, R. A., Brueggemann, A., Cai, H., Cai, X., Calcaterra, A., Cao, G. F., Cao, N., Cetin, S. A., Chang, J. F., Che, G. R., Chelkov, G., Chen, C., Chen, C. H., Chen, Chao, Chen, G., Chen, H. S., Chen, H. Y., Chen, M. L., Chen, S. J., Chen, S. L., Chen, S. M., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Y. Q., Chen, Z. J., Chen, Z. Y., Choi, S. K., Cibinetto, G., Cossio, F., Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, D., Deng, C. Q., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, B., Ding, X. X., Ding, Y., Dong, J., Dong, L. Y., Dong, M. Y., Dong, X., Du, M. C., Du, S. X., Duan, Y. Y., Duan, Z. H., Egorov, P., Fan, Y. H., Fang, J., Fang, S. S., Fang, W. X., Fang, Y., Fang, Y. Q., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Feng, J. H., Feng, Y. T., Fritsch, M., Fu, C. D., Fu, J. L., Fu, Y. W., Gao, H., Gao, X. B., Gao, Y. N.
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creator	Ablikim, M. Achasov, M. N. Adlarson, P. Afedulidis, O. Ai, X. C. Aliberti, R. Amoroso, A. An, Q. Bai, Y. Bakina, O. Balossino, I. Ban, Y. Bao, H.-R. Batozskaya, V. Begzsuren, K. Berger, N. Berlowski, M. Bertani, M. Bettoni, D. Bianchi, F. Bianco, E. Bortone, A. Boyko, I. Briere, R. A. Brueggemann, A. Cai, H. Cai, X. Calcaterra, A. Cao, G. F. Cao, N. Cetin, S. A. Chang, J. F. Che, G. R. Chelkov, G. Chen, C. Chen, C. H. Chen, Chao Chen, G. Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, S. L. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, Z. Y. Choi, S. K. Cibinetto, G. Cossio, F. Cui, J. J. Dai, H. L. Dai, J. P. Dbeyssi, A. de Boer, R. E. Dedovich, D. Deng, C. Q. Deng, Z. Y. Denig, A. Denysenko, I. Destefanis, M. De Mori, F. Ding, B. Ding, X. X. Ding, Y. Ding, Y. Dong, J. Dong, L. Y. Dong, M. Y. Dong, X. Du, M. C. Du, S. X. Duan, Y. Y. Duan, Z. H. Egorov, P. Fan, Y. H. Fang, J. Fang, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, Y. Q. Farinelli, R. Fava, L. Feldbauer, F. Felici, G. Feng, C. Q. Feng, J. H. Feng, Y. T. Fritsch, M. Fu, C. D. Fu, J. L. Fu, Y. W. Gao, H. Gao, X. B. Gao, Y. N.
description	A high-precision measurement of the branching fraction of the decay J / ψ → p p ¯ η is performed using ( 10 087 ± 44 ) × 10 6 J / ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of the two decays J / ψ → p p ¯ η ( η → γ γ ) and J / ψ → p p ¯ η ( η → π + π − π 0 ) are measured individually to be B ( J / ψ → p p ¯ η ( η → γ γ ) ) = ( 1.480 ± 0.001 ± 0.024 ) × 10 − 3 and B ( J / ψ → p p ¯ η ( η → π + π − π 0 ) ) = ( 1.557 ± 0.003 ± 0.038 ) × 10 − 3 , where the first uncertainties are statistical and the second systematic. Both results are compatible within their uncorrelated systematic uncertainties. The combined result is B ( J / ψ → p p ¯ η ) = ( 1.495 ± 0.001 ± 0.023 ) × 10 − 3 , where the first uncertainty is the combined statistical uncertainty and the second one the combined systematic uncertainty of both analyses, incorporating correlations between them. In addition, the p p ¯ threshold region is investigated for a potential threshold enhancement, and no evidence for one is observed.
doi_str_mv	10.1103/PhysRevD.110.072021
format	Article
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N. ; Adlarson, P. ; Afedulidis, O. ; Ai, X. C. ; Aliberti, R. ; Amoroso, A. ; An, Q. ; Bai, Y. ; Bakina, O. ; Balossino, I. ; Ban, Y. ; Bao, H.-R. ; Batozskaya, V. ; Begzsuren, K. ; Berger, N. ; Berlowski, M. ; Bertani, M. ; Bettoni, D. ; Bianchi, F. ; Bianco, E. ; Bortone, A. ; Boyko, I. ; Briere, R. A. ; Brueggemann, A. ; Cai, H. ; Cai, X. ; Calcaterra, A. ; Cao, G. F. ; Cao, N. ; Cetin, S. A. ; Chang, J. F. ; Che, G. R. ; Chelkov, G. ; Chen, C. ; Chen, C. H. ; Chen, Chao ; Chen, G. ; Chen, H. S. ; Chen, H. Y. ; Chen, M. L. ; Chen, S. J. ; Chen, S. L. ; Chen, S. M. ; Chen, T. ; Chen, X. R. ; Chen, X. T. ; Chen, Y. B. ; Chen, Y. Q. ; Chen, Z. J. ; Chen, Z. Y. ; Choi, S. K. ; Cibinetto, G. ; Cossio, F. ; Cui, J. J. ; Dai, H. L. ; Dai, J. P. ; Dbeyssi, A. ; de Boer, R. E. ; Dedovich, D. ; Deng, C. Q. ; Deng, Z. Y. ; Denig, A. ; Denysenko, I. ; Destefanis, M. ; De Mori, F. ; Ding, B. ; Ding, X. X. ; Ding, Y. ; Ding, Y. ; Dong, J. ; Dong, L. Y. ; Dong, M. Y. ; Dong, X. ; Du, M. C. ; Du, S. X. ; Duan, Y. Y. ; Duan, Z. H. ; Egorov, P. ; Fan, Y. H. ; Fang, J. ; Fang, J. ; Fang, S. S. ; Fang, W. X. ; Fang, Y. ; Fang, Y. Q. ; Farinelli, R. ; Fava, L. ; Feldbauer, F. ; Felici, G. ; Feng, C. Q. ; Feng, J. H. ; Feng, Y. T. ; Fritsch, M. ; Fu, C. D. ; Fu, J. L. ; Fu, Y. W. ; Gao, H. ; Gao, X. B. ; Gao, Y. N.</creator><creatorcontrib>Ablikim, M. ; Achasov, M. N. ; Adlarson, P. ; Afedulidis, O. ; Ai, X. C. ; Aliberti, R. ; Amoroso, A. ; An, Q. ; Bai, Y. ; Bakina, O. ; Balossino, I. ; Ban, Y. ; Bao, H.-R. ; Batozskaya, V. ; Begzsuren, K. ; Berger, N. ; Berlowski, M. ; Bertani, M. ; Bettoni, D. ; Bianchi, F. ; Bianco, E. ; Bortone, A. ; Boyko, I. ; Briere, R. A. ; Brueggemann, A. ; Cai, H. ; Cai, X. ; Calcaterra, A. ; Cao, G. F. ; Cao, N. ; Cetin, S. A. ; Chang, J. F. ; Che, G. R. ; Chelkov, G. ; Chen, C. ; Chen, C. H. ; Chen, Chao ; Chen, G. ; Chen, H. S. ; Chen, H. Y. ; Chen, M. L. ; Chen, S. J. ; Chen, S. L. ; Chen, S. M. ; Chen, T. ; Chen, X. R. ; Chen, X. T. ; Chen, Y. B. ; Chen, Y. Q. ; Chen, Z. J. ; Chen, Z. Y. ; Choi, S. K. ; Cibinetto, G. ; Cossio, F. ; Cui, J. J. ; Dai, H. L. ; Dai, J. P. ; Dbeyssi, A. ; de Boer, R. E. ; Dedovich, D. ; Deng, C. Q. ; Deng, Z. Y. ; Denig, A. ; Denysenko, I. ; Destefanis, M. ; De Mori, F. ; Ding, B. ; Ding, X. X. ; Ding, Y. ; Ding, Y. ; Dong, J. ; Dong, L. Y. ; Dong, M. Y. ; Dong, X. ; Du, M. C. ; Du, S. X. ; Duan, Y. Y. ; Duan, Z. H. ; Egorov, P. ; Fan, Y. H. ; Fang, J. ; Fang, J. ; Fang, S. S. ; Fang, W. X. ; Fang, Y. ; Fang, Y. Q. ; Farinelli, R. ; Fava, L. ; Feldbauer, F. ; Felici, G. ; Feng, C. Q. ; Feng, J. H. ; Feng, Y. T. ; Fritsch, M. ; Fu, C. D. ; Fu, J. L. ; Fu, Y. W. ; Gao, H. ; Gao, X. B. ; Gao, Y. N. ; BESIII Collaboration</creatorcontrib><description>A high-precision measurement of the branching fraction of the decay J / ψ → p p ¯ η is performed using ( 10 087 ± 44 ) × 10 6 J / ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of the two decays J / ψ → p p ¯ η ( η → γ γ ) and J / ψ → p p ¯ η ( η → π + π − π 0 ) are measured individually to be B ( J / ψ → p p ¯ η ( η → γ γ ) ) = ( 1.480 ± 0.001 ± 0.024 ) × 10 − 3 and B ( J / ψ → p p ¯ η ( η → π + π − π 0 ) ) = ( 1.557 ± 0.003 ± 0.038 ) × 10 − 3 , where the first uncertainties are statistical and the second systematic. Both results are compatible within their uncorrelated systematic uncertainties. The combined result is B ( J / ψ → p p ¯ η ) = ( 1.495 ± 0.001 ± 0.023 ) × 10 − 3 , where the first uncertainty is the combined statistical uncertainty and the second one the combined systematic uncertainty of both analyses, incorporating correlations between them. In addition, the p p ¯ threshold region is investigated for a potential threshold enhancement, and no evidence for one is observed.</description><identifier>ISSN: 2470-0010</identifier><identifier>EISSN: 2470-0029</identifier><identifier>DOI: 10.1103/PhysRevD.110.072021</identifier><language>eng</language><publisher>United States: American Physical Society</publisher><ispartof>Physical review. D, 2024-10, Vol.110 (7), Article 072021</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c712-75332b9c1214da293f17fb980c0e7ed88f177218b9a6137fe58a5c4b58aa9dbb3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,777,781,882,2863,2864,27905,27906</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/2475452$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Ablikim, M.</creatorcontrib><creatorcontrib>Achasov, M. N.</creatorcontrib><creatorcontrib>Adlarson, P.</creatorcontrib><creatorcontrib>Afedulidis, O.</creatorcontrib><creatorcontrib>Ai, X. C.</creatorcontrib><creatorcontrib>Aliberti, R.</creatorcontrib><creatorcontrib>Amoroso, A.</creatorcontrib><creatorcontrib>An, Q.</creatorcontrib><creatorcontrib>Bai, Y.</creatorcontrib><creatorcontrib>Bakina, O.</creatorcontrib><creatorcontrib>Balossino, I.</creatorcontrib><creatorcontrib>Ban, Y.</creatorcontrib><creatorcontrib>Bao, H.-R.</creatorcontrib><creatorcontrib>Batozskaya, V.</creatorcontrib><creatorcontrib>Begzsuren, K.</creatorcontrib><creatorcontrib>Berger, N.</creatorcontrib><creatorcontrib>Berlowski, M.</creatorcontrib><creatorcontrib>Bertani, M.</creatorcontrib><creatorcontrib>Bettoni, D.</creatorcontrib><creatorcontrib>Bianchi, F.</creatorcontrib><creatorcontrib>Bianco, E.</creatorcontrib><creatorcontrib>Bortone, A.</creatorcontrib><creatorcontrib>Boyko, I.</creatorcontrib><creatorcontrib>Briere, R. A.</creatorcontrib><creatorcontrib>Brueggemann, A.</creatorcontrib><creatorcontrib>Cai, H.</creatorcontrib><creatorcontrib>Cai, X.</creatorcontrib><creatorcontrib>Calcaterra, A.</creatorcontrib><creatorcontrib>Cao, G. F.</creatorcontrib><creatorcontrib>Cao, N.</creatorcontrib><creatorcontrib>Cetin, S. A.</creatorcontrib><creatorcontrib>Chang, J. F.</creatorcontrib><creatorcontrib>Che, G. R.</creatorcontrib><creatorcontrib>Chelkov, G.</creatorcontrib><creatorcontrib>Chen, C.</creatorcontrib><creatorcontrib>Chen, C. H.</creatorcontrib><creatorcontrib>Chen, Chao</creatorcontrib><creatorcontrib>Chen, G.</creatorcontrib><creatorcontrib>Chen, H. S.</creatorcontrib><creatorcontrib>Chen, H. Y.</creatorcontrib><creatorcontrib>Chen, M. L.</creatorcontrib><creatorcontrib>Chen, S. J.</creatorcontrib><creatorcontrib>Chen, S. L.</creatorcontrib><creatorcontrib>Chen, S. M.</creatorcontrib><creatorcontrib>Chen, T.</creatorcontrib><creatorcontrib>Chen, X. R.</creatorcontrib><creatorcontrib>Chen, X. 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X.</creatorcontrib><creatorcontrib>Ding, Y.</creatorcontrib><creatorcontrib>Ding, Y.</creatorcontrib><creatorcontrib>Dong, J.</creatorcontrib><creatorcontrib>Dong, L. Y.</creatorcontrib><creatorcontrib>Dong, M. Y.</creatorcontrib><creatorcontrib>Dong, X.</creatorcontrib><creatorcontrib>Du, M. C.</creatorcontrib><creatorcontrib>Du, S. X.</creatorcontrib><creatorcontrib>Duan, Y. Y.</creatorcontrib><creatorcontrib>Duan, Z. H.</creatorcontrib><creatorcontrib>Egorov, P.</creatorcontrib><creatorcontrib>Fan, Y. H.</creatorcontrib><creatorcontrib>Fang, J.</creatorcontrib><creatorcontrib>Fang, J.</creatorcontrib><creatorcontrib>Fang, S. S.</creatorcontrib><creatorcontrib>Fang, W. X.</creatorcontrib><creatorcontrib>Fang, Y.</creatorcontrib><creatorcontrib>Fang, Y. Q.</creatorcontrib><creatorcontrib>Farinelli, R.</creatorcontrib><creatorcontrib>Fava, L.</creatorcontrib><creatorcontrib>Feldbauer, F.</creatorcontrib><creatorcontrib>Felici, G.</creatorcontrib><creatorcontrib>Feng, C. Q.</creatorcontrib><creatorcontrib>Feng, J. H.</creatorcontrib><creatorcontrib>Feng, Y. T.</creatorcontrib><creatorcontrib>Fritsch, M.</creatorcontrib><creatorcontrib>Fu, C. D.</creatorcontrib><creatorcontrib>Fu, J. L.</creatorcontrib><creatorcontrib>Fu, Y. W.</creatorcontrib><creatorcontrib>Gao, H.</creatorcontrib><creatorcontrib>Gao, X. B.</creatorcontrib><creatorcontrib>Gao, Y. N.</creatorcontrib><creatorcontrib>BESIII Collaboration</creatorcontrib><title>Measurement of the branching fraction of the decay J / ψ → p p ¯ η</title><title>Physical review. D</title><description>A high-precision measurement of the branching fraction of the decay J / ψ → p p ¯ η is performed using ( 10 087 ± 44 ) × 10 6 J / ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of the two decays J / ψ → p p ¯ η ( η → γ γ ) and J / ψ → p p ¯ η ( η → π + π − π 0 ) are measured individually to be B ( J / ψ → p p ¯ η ( η → γ γ ) ) = ( 1.480 ± 0.001 ± 0.024 ) × 10 − 3 and B ( J / ψ → p p ¯ η ( η → π + π − π 0 ) ) = ( 1.557 ± 0.003 ± 0.038 ) × 10 − 3 , where the first uncertainties are statistical and the second systematic. Both results are compatible within their uncorrelated systematic uncertainties. The combined result is B ( J / ψ → p p ¯ η ) = ( 1.495 ± 0.001 ± 0.023 ) × 10 − 3 , where the first uncertainty is the combined statistical uncertainty and the second one the combined systematic uncertainty of both analyses, incorporating correlations between them. In addition, the p p ¯ threshold region is investigated for a potential threshold enhancement, and no evidence for one is observed.</description><issn>2470-0010</issn><issn>2470-0029</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNo9kMFKAzEQhoMoWGqfwEvwvu1MsttsjlK1VSqK9B6SbOKu2N2SrEJfQDz7Ih69-wD6Dj6JW2plDv__MT8D8xNyjDBEBD66Ldfxzj2fbWgIggHDPdJjqYAEgMn9f49wSAYxPkBnxyAFYo9Mr52OT8EtXd3SxtO2dNQEXduyqu-pD9q2VVPvNoWzek2v6Ih-v9Kflze66ubznX59HJEDrx-jG_xpnywuzheTWTK_mV5OTueJFcgSkXHOjLTIMC00k9yj8EbmYMEJV-R5x4JhbqQeIxfeZbnObGo60bIwhvfJyfZsE9tKRVu1zpa2qWtnW9W9maUZ60J8G7KhiTE4r1ahWuqwVghqU5naVbYhta2M_wI4ZGDm</recordid><startdate>20241029</startdate><enddate>20241029</enddate><creator>Ablikim, M.</creator><creator>Achasov, M. N.</creator><creator>Adlarson, P.</creator><creator>Afedulidis, O.</creator><creator>Ai, X. 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X.</creator><creator>Ding, Y.</creator><creator>Ding, Y.</creator><creator>Dong, J.</creator><creator>Dong, L. Y.</creator><creator>Dong, M. Y.</creator><creator>Dong, X.</creator><creator>Du, M. C.</creator><creator>Du, S. X.</creator><creator>Duan, Y. Y.</creator><creator>Duan, Z. H.</creator><creator>Egorov, P.</creator><creator>Fan, Y. H.</creator><creator>Fang, J.</creator><creator>Fang, J.</creator><creator>Fang, S. S.</creator><creator>Fang, W. X.</creator><creator>Fang, Y.</creator><creator>Fang, Y. Q.</creator><creator>Farinelli, R.</creator><creator>Fava, L.</creator><creator>Feldbauer, F.</creator><creator>Felici, G.</creator><creator>Feng, C. Q.</creator><creator>Feng, J. H.</creator><creator>Feng, Y. T.</creator><creator>Fritsch, M.</creator><creator>Fu, C. D.</creator><creator>Fu, J. L.</creator><creator>Fu, Y. W.</creator><creator>Gao, H.</creator><creator>Gao, X. B.</creator><creator>Gao, Y. N.</creator><general>American Physical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20241029</creationdate><title>Measurement of the branching fraction of the decay J / ψ → p p ¯ η</title><author>Ablikim, M. ; Achasov, M. N. ; Adlarson, P. ; Afedulidis, O. ; Ai, X. C. ; Aliberti, R. ; Amoroso, A. ; An, Q. ; Bai, Y. ; Bakina, O. ; Balossino, I. ; Ban, Y. ; Bao, H.-R. ; Batozskaya, V. ; Begzsuren, K. ; Berger, N. ; Berlowski, M. ; Bertani, M. ; Bettoni, D. ; Bianchi, F. ; Bianco, E. ; Bortone, A. ; Boyko, I. ; Briere, R. A. ; Brueggemann, A. ; Cai, H. ; Cai, X. ; Calcaterra, A. ; Cao, G. F. ; Cao, N. ; Cetin, S. A. ; Chang, J. F. ; Che, G. R. ; Chelkov, G. ; Chen, C. ; Chen, C. H. ; Chen, Chao ; Chen, G. ; Chen, H. S. ; Chen, H. Y. ; Chen, M. L. ; Chen, S. J. ; Chen, S. L. ; Chen, S. M. ; Chen, T. ; Chen, X. R. ; Chen, X. T. ; Chen, Y. B. ; Chen, Y. Q. ; Chen, Z. J. ; Chen, Z. Y. ; Choi, S. K. ; Cibinetto, G. ; Cossio, F. ; Cui, J. J. ; Dai, H. L. ; Dai, J. P. ; Dbeyssi, A. ; de Boer, R. E. ; Dedovich, D. ; Deng, C. Q. ; Deng, Z. Y. ; Denig, A. ; Denysenko, I. ; Destefanis, M. ; De Mori, F. ; Ding, B. ; Ding, X. X. ; Ding, Y. ; Ding, Y. ; Dong, J. ; Dong, L. Y. ; Dong, M. Y. ; Dong, X. ; Du, M. C. ; Du, S. X. ; Duan, Y. Y. ; Duan, Z. H. ; Egorov, P. ; Fan, Y. H. ; Fang, J. ; Fang, J. ; Fang, S. S. ; Fang, W. X. ; Fang, Y. ; Fang, Y. Q. ; Farinelli, R. ; Fava, L. ; Feldbauer, F. ; Felici, G. ; Feng, C. Q. ; Feng, J. H. ; Feng, Y. T. ; Fritsch, M. ; Fu, C. D. ; Fu, J. L. ; Fu, Y. W. ; Gao, H. ; Gao, X. B. ; Gao, Y. N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c712-75332b9c1214da293f17fb980c0e7ed88f177218b9a6137fe58a5c4b58aa9dbb3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ablikim, M.</creatorcontrib><creatorcontrib>Achasov, M. N.</creatorcontrib><creatorcontrib>Adlarson, P.</creatorcontrib><creatorcontrib>Afedulidis, O.</creatorcontrib><creatorcontrib>Ai, X. C.</creatorcontrib><creatorcontrib>Aliberti, R.</creatorcontrib><creatorcontrib>Amoroso, A.</creatorcontrib><creatorcontrib>An, Q.</creatorcontrib><creatorcontrib>Bai, Y.</creatorcontrib><creatorcontrib>Bakina, O.</creatorcontrib><creatorcontrib>Balossino, I.</creatorcontrib><creatorcontrib>Ban, Y.</creatorcontrib><creatorcontrib>Bao, H.-R.</creatorcontrib><creatorcontrib>Batozskaya, V.</creatorcontrib><creatorcontrib>Begzsuren, K.</creatorcontrib><creatorcontrib>Berger, N.</creatorcontrib><creatorcontrib>Berlowski, M.</creatorcontrib><creatorcontrib>Bertani, M.</creatorcontrib><creatorcontrib>Bettoni, D.</creatorcontrib><creatorcontrib>Bianchi, F.</creatorcontrib><creatorcontrib>Bianco, E.</creatorcontrib><creatorcontrib>Bortone, A.</creatorcontrib><creatorcontrib>Boyko, I.</creatorcontrib><creatorcontrib>Briere, R. A.</creatorcontrib><creatorcontrib>Brueggemann, A.</creatorcontrib><creatorcontrib>Cai, H.</creatorcontrib><creatorcontrib>Cai, X.</creatorcontrib><creatorcontrib>Calcaterra, A.</creatorcontrib><creatorcontrib>Cao, G. F.</creatorcontrib><creatorcontrib>Cao, N.</creatorcontrib><creatorcontrib>Cetin, S. A.</creatorcontrib><creatorcontrib>Chang, J. F.</creatorcontrib><creatorcontrib>Che, G. R.</creatorcontrib><creatorcontrib>Chelkov, G.</creatorcontrib><creatorcontrib>Chen, C.</creatorcontrib><creatorcontrib>Chen, C. H.</creatorcontrib><creatorcontrib>Chen, Chao</creatorcontrib><creatorcontrib>Chen, G.</creatorcontrib><creatorcontrib>Chen, H. S.</creatorcontrib><creatorcontrib>Chen, H. Y.</creatorcontrib><creatorcontrib>Chen, M. L.</creatorcontrib><creatorcontrib>Chen, S. J.</creatorcontrib><creatorcontrib>Chen, S. L.</creatorcontrib><creatorcontrib>Chen, S. M.</creatorcontrib><creatorcontrib>Chen, T.</creatorcontrib><creatorcontrib>Chen, X. R.</creatorcontrib><creatorcontrib>Chen, X. T.</creatorcontrib><creatorcontrib>Chen, Y. B.</creatorcontrib><creatorcontrib>Chen, Y. Q.</creatorcontrib><creatorcontrib>Chen, Z. J.</creatorcontrib><creatorcontrib>Chen, Z. Y.</creatorcontrib><creatorcontrib>Choi, S. K.</creatorcontrib><creatorcontrib>Cibinetto, G.</creatorcontrib><creatorcontrib>Cossio, F.</creatorcontrib><creatorcontrib>Cui, J. J.</creatorcontrib><creatorcontrib>Dai, H. L.</creatorcontrib><creatorcontrib>Dai, J. P.</creatorcontrib><creatorcontrib>Dbeyssi, A.</creatorcontrib><creatorcontrib>de Boer, R. E.</creatorcontrib><creatorcontrib>Dedovich, D.</creatorcontrib><creatorcontrib>Deng, C. Q.</creatorcontrib><creatorcontrib>Deng, Z. Y.</creatorcontrib><creatorcontrib>Denig, A.</creatorcontrib><creatorcontrib>Denysenko, I.</creatorcontrib><creatorcontrib>Destefanis, M.</creatorcontrib><creatorcontrib>De Mori, F.</creatorcontrib><creatorcontrib>Ding, B.</creatorcontrib><creatorcontrib>Ding, X. X.</creatorcontrib><creatorcontrib>Ding, Y.</creatorcontrib><creatorcontrib>Ding, Y.</creatorcontrib><creatorcontrib>Dong, J.</creatorcontrib><creatorcontrib>Dong, L. Y.</creatorcontrib><creatorcontrib>Dong, M. Y.</creatorcontrib><creatorcontrib>Dong, X.</creatorcontrib><creatorcontrib>Du, M. C.</creatorcontrib><creatorcontrib>Du, S. X.</creatorcontrib><creatorcontrib>Duan, Y. Y.</creatorcontrib><creatorcontrib>Duan, Z. H.</creatorcontrib><creatorcontrib>Egorov, P.</creatorcontrib><creatorcontrib>Fan, Y. H.</creatorcontrib><creatorcontrib>Fang, J.</creatorcontrib><creatorcontrib>Fang, J.</creatorcontrib><creatorcontrib>Fang, S. S.</creatorcontrib><creatorcontrib>Fang, W. X.</creatorcontrib><creatorcontrib>Fang, Y.</creatorcontrib><creatorcontrib>Fang, Y. Q.</creatorcontrib><creatorcontrib>Farinelli, R.</creatorcontrib><creatorcontrib>Fava, L.</creatorcontrib><creatorcontrib>Feldbauer, F.</creatorcontrib><creatorcontrib>Felici, G.</creatorcontrib><creatorcontrib>Feng, C. Q.</creatorcontrib><creatorcontrib>Feng, J. H.</creatorcontrib><creatorcontrib>Feng, Y. T.</creatorcontrib><creatorcontrib>Fritsch, M.</creatorcontrib><creatorcontrib>Fu, C. D.</creatorcontrib><creatorcontrib>Fu, J. L.</creatorcontrib><creatorcontrib>Fu, Y. W.</creatorcontrib><creatorcontrib>Gao, H.</creatorcontrib><creatorcontrib>Gao, X. B.</creatorcontrib><creatorcontrib>Gao, Y. N.</creatorcontrib><creatorcontrib>BESIII Collaboration</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Physical review. D</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ablikim, M.</au><au>Achasov, M. N.</au><au>Adlarson, P.</au><au>Afedulidis, O.</au><au>Ai, X. C.</au><au>Aliberti, R.</au><au>Amoroso, A.</au><au>An, Q.</au><au>Bai, Y.</au><au>Bakina, O.</au><au>Balossino, I.</au><au>Ban, Y.</au><au>Bao, H.-R.</au><au>Batozskaya, V.</au><au>Begzsuren, K.</au><au>Berger, N.</au><au>Berlowski, M.</au><au>Bertani, M.</au><au>Bettoni, D.</au><au>Bianchi, F.</au><au>Bianco, E.</au><au>Bortone, A.</au><au>Boyko, I.</au><au>Briere, R. A.</au><au>Brueggemann, A.</au><au>Cai, H.</au><au>Cai, X.</au><au>Calcaterra, A.</au><au>Cao, G. F.</au><au>Cao, N.</au><au>Cetin, S. A.</au><au>Chang, J. F.</au><au>Che, G. R.</au><au>Chelkov, G.</au><au>Chen, C.</au><au>Chen, C. H.</au><au>Chen, Chao</au><au>Chen, G.</au><au>Chen, H. S.</au><au>Chen, H. Y.</au><au>Chen, M. L.</au><au>Chen, S. J.</au><au>Chen, S. L.</au><au>Chen, S. M.</au><au>Chen, T.</au><au>Chen, X. R.</au><au>Chen, X. T.</au><au>Chen, Y. B.</au><au>Chen, Y. Q.</au><au>Chen, Z. J.</au><au>Chen, Z. Y.</au><au>Choi, S. K.</au><au>Cibinetto, G.</au><au>Cossio, F.</au><au>Cui, J. J.</au><au>Dai, H. L.</au><au>Dai, J. P.</au><au>Dbeyssi, A.</au><au>de Boer, R. E.</au><au>Dedovich, D.</au><au>Deng, C. Q.</au><au>Deng, Z. Y.</au><au>Denig, A.</au><au>Denysenko, I.</au><au>Destefanis, M.</au><au>De Mori, F.</au><au>Ding, B.</au><au>Ding, X. X.</au><au>Ding, Y.</au><au>Ding, Y.</au><au>Dong, J.</au><au>Dong, L. Y.</au><au>Dong, M. Y.</au><au>Dong, X.</au><au>Du, M. C.</au><au>Du, S. X.</au><au>Duan, Y. Y.</au><au>Duan, Z. H.</au><au>Egorov, P.</au><au>Fan, Y. H.</au><au>Fang, J.</au><au>Fang, J.</au><au>Fang, S. S.</au><au>Fang, W. X.</au><au>Fang, Y.</au><au>Fang, Y. Q.</au><au>Farinelli, R.</au><au>Fava, L.</au><au>Feldbauer, F.</au><au>Felici, G.</au><au>Feng, C. Q.</au><au>Feng, J. H.</au><au>Feng, Y. T.</au><au>Fritsch, M.</au><au>Fu, C. D.</au><au>Fu, J. L.</au><au>Fu, Y. W.</au><au>Gao, H.</au><au>Gao, X. B.</au><au>Gao, Y. N.</au><aucorp>BESIII Collaboration</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurement of the branching fraction of the decay J / ψ → p p ¯ η</atitle><jtitle>Physical review. D</jtitle><date>2024-10-29</date><risdate>2024</risdate><volume>110</volume><issue>7</issue><artnum>072021</artnum><issn>2470-0010</issn><eissn>2470-0029</eissn><abstract>A high-precision measurement of the branching fraction of the decay J / ψ → p p ¯ η is performed using ( 10 087 ± 44 ) × 10 6 J / ψ events recorded by the BESIII detector at the BEPCII storage ring. The branching fractions of the two decays J / ψ → p p ¯ η ( η → γ γ ) and J / ψ → p p ¯ η ( η → π + π − π 0 ) are measured individually to be B ( J / ψ → p p ¯ η ( η → γ γ ) ) = ( 1.480 ± 0.001 ± 0.024 ) × 10 − 3 and B ( J / ψ → p p ¯ η ( η → π + π − π 0 ) ) = ( 1.557 ± 0.003 ± 0.038 ) × 10 − 3 , where the first uncertainties are statistical and the second systematic. Both results are compatible within their uncorrelated systematic uncertainties. The combined result is B ( J / ψ → p p ¯ η ) = ( 1.495 ± 0.001 ± 0.023 ) × 10 − 3 , where the first uncertainty is the combined statistical uncertainty and the second one the combined systematic uncertainty of both analyses, incorporating correlations between them. In addition, the p p ¯ threshold region is investigated for a potential threshold enhancement, and no evidence for one is observed.</abstract><cop>United States</cop><pub>American Physical Society</pub><doi>10.1103/PhysRevD.110.072021</doi></addata></record>
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title	Measurement of the branching fraction of the decay J / ψ → p p ¯ η
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