Search for the baryonic decay $ D_{s}^{*+} \to \ p \bar{n} $

BESIII Collaboration; M. Ablikim; M. N. Achasov; P. Adlarson; X. C. Ai; C. S. Akondi; R. Aliberti; A. Amoroso; Q. An; Y. H. An; M. S. Anderson; Y. Bai; O. Bakina; H. R. Bao; X. L. Bao; M. Barbagiovanni; V. Batozskaya; K. Begzsuren; N. Berger; M. Berlowski; M. B. Bertani; D. Bettoni; F. Bianchi; E. Bianco; A. Bortone; I. Boyko; R. A. Briere; A. Brueggemann; D. Cabiati; H. Cai; M. H. Cai; X. Cai; A. Calcaterra; G. F. Cao; N. Cao; S. A. Cetin; X. Y. Chai; J. F. Chang; T. T. Chang; G. R. Che; Y. Z. Che; C. H. Chen; Chao Chen; G. Chen; H. S. Chen; H. Y. Chen; M. L. Chen; S. J. Chen; S. M. Chen; T. Chen; W. Chen; X. R. Chen; X. T. Chen; X. Y. Chen; Y. B. Chen; Y. Q. Chen; Z. K. Chen; J. Cheng; L. N. Cheng; S. K. Choi; X. Chu; G. Cibinetto; F. Cossio; J. Cottee-Meldrum; H. L. Dai; J. P. Dai; X. C. Dai; A. Dbeyssi; R. E. de Boer; D. Dedovich; C. Q. Deng; Z. Y. Deng; A. Denig; I. Denisenko; M. Destefanis; F. De Mori; E. Di Fiore; X. X. Ding; Y. Ding; Y. X. Ding; J. Dong; L. Y. Dong; M. Y. Dong; X. Dong; Z. J. Dong; M. C. Du; S. X. Du; Shaoxu Du; X. L. Du; Y. Q. Du; Y. Y. Duan; Z. H. Duan; P. Egorov; G. F. Fan; J. J. Fan; Y. H. Fan; J. Fang; Jin Fang; S. S. Fang; W. X. Fang

arXiv · 2609.02033

Search for the baryonic decay $ D_{s}^{*+} \to \ p \bar{n} $

BESIII Collaboration·M. Ablikim·M. N. Achasov·P. Adlarson·X. C. Ai·C. S. Akondi·R. Aliberti·A. Amoroso·Q. An·Y. H. An·M. S. Anderson·Y. Bai·O. Bakina·H. R. Bao·X. L. Bao·M. Barbagiovanni·V. Batozskaya·K. Begzsuren·N. Berger·M. Berlowski·M. B. Bertani·D. Bettoni·F. Bianchi·E. Bianco·A. Bortone·I. Boyko·R. A. Briere·A. Brueggemann·D. Cabiati·H. Cai·M. H. Cai·X. Cai·A. Calcaterra·G. F. Cao·N. Cao·S. A. Cetin·X. Y. Chai·J. F. Chang·T. T. Chang·G. R. Che·Y. Z. Che·C. H. Chen·Chao Chen·G. Chen·H. S. Chen·H. Y. Chen·M. L. Chen·S. J. Chen·S. M. Chen·T. Chen·W. Chen·X. R. Chen·X. T. Chen·X. Y. Chen·Y. B. Chen·Y. Q. Chen·Z. K. Chen·J. Cheng·L. N. Cheng·S. K. Choi·X. Chu·G. Cibinetto·F. Cossio·J. Cottee-Meldrum·H. L. Dai·J. P. Dai·X. C. Dai·A. Dbeyssi·R. E. de Boer·D. Dedovich·C. Q. Deng·Z. Y. Deng·A. Denig·I. Denisenko·M. Destefanis·F. De Mori·E. Di Fiore·X. X. Ding·Y. Ding·Y. X. Ding·J. Dong·L. Y. Dong·M. Y. Dong·X. Dong·Z. J. Dong·M. C. Du·S. X. Du·Shaoxu Du·X. L. Du·Y. Q. Du·Y. Y. Duan·Z. H. Duan·P. Egorov·G. F. Fan·J. J. Fan·Y. H. Fan·J. Fang·Jin Fang·S. S. Fang·W. X. Fang

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Abstract

The first search for the baryonic decay $ D_{s}^{*+} \to \ p \bar{n} $ is performed using $e^+e^-$ collision data taken at center-of-mass energies between 4.128 and 4.226 GeV, collected by the BESIII experiment and corresponding to an integrated luminosity of 7.33 fb$^{-1}$. No significant signal is observed, and an upper limit on the branching fraction is set to be $1.3\times 10^{-4}$ at the $90\%$ confidence level.

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BESIII Collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, C. S. Akondi, R. Aliberti, A. Amoroso, Q. An, Y. H. An, M. S. Anderson, Y. Bai, O. Bakina, H. R. Bao, X. L. Bao, M. Barbagiovanni, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. B. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, D. Cabiati, H. Cai, M. H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, X. Y. Chai, J. F. Chang, T. T. Chang, G. R. Che, Y. Z. Che, C. H. Chen, Chao Chen, G. Chen, H. S. Chen, H. Y. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, W. Chen, X. R. Chen, X. T. Chen, X. Y. Chen, Y. B. Chen, Y. Q. Chen, Z. K. Chen, J. Cheng, L. N. Cheng, S. K. Choi, X. Chu, G. Cibinetto, F. Cossio, J. Cottee-Meldrum, H. L. Dai, J. P. Dai, X. C. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, C. Q. Deng, Z. Y. Deng, A. Denig, I. Denisenko, M. Destefanis, F. De Mori, E. Di Fiore, X. X. Ding, Y. Ding, Y. X. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, Z. J. Dong, M. C. Du, S. X. Du, Shaoxu Du, X. L. Du, Y. Q. Du, Y. Y. Duan, Z. H. Duan, P. Egorov, G. F. Fan, J. J. Fan, Y. H. Fan, J. Fang, Jin Fang, S. S. Fang, W. X. Fang. 2026-09-02. Search for the baryonic decay $ D_{s}^{*+} \to \ p \bar{n} $. https://arxiv.org/abs/2609.02033

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