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Measurement of the $e^+e^- \to \Lambda\bar\Sigma^0 + c.c.$ cross sections at $\sqrt{s}$ from 2.3094 to 3.0800 GeV

Year: 2023
Type: preprint
Abstract: The Born cross sections and effective form factors of the process $e^+e^-\to\Lambda\bar\Sigma^0 + c.c.$ are measured at 14 center-of-mass energy points from 2.3094 to 3.0800 GeV, based on data corresponding to an integrated luminosity of $(478.5 \pm 4.8)\ \text{pb}^{-1}$ collected with the BESIII detector. A non-zero Born cross section is observed at the center-of-mass energy of 2.3094 GeV with a statistical significance of more than five standard deviations, and the cross sections at other energies are obtained with improved precision compared to earlier measurements from the BaBar Collaboration. The Born cross-section lineshape is described better by a shape with a plateau near the threshold than by a pQCD motivated functional form. NUMERICAL VALUES HAVE BEEN DIGITISED FROM THE PAPER.
DOI: 10.17182/hepdata.177477
Authors: BESIII Collaboration, Ablikim, M., Achasov, M. N., Adlarson, P., Ai, X. C., Aliberti, R., Amoroso, A., An, M. R., An, Q., Bai, Y., Bakina, O., Balossino, I., Ban, Y., Batozskaya, V., Begzsuren, K., Berger, N., Berlowski, M., Bertani, M., Bettoni, D., Bianchi, F., Bianco, E., Bloms, J., 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., Chang, T. T., Chang, W. L., Che, G. R., Chelkov, G., Chen, C., Chen, Chao, Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, S. M., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Y. Q., Chen, Z. J., Cheng, W. S., Choi, S. K., Chu, X., Cibinetto, G., Coen, S. C., Cossio, F., Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, D., 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, S. X., Duan, Z. H., Egorov, P., Fan, Y. L., Fang, J., Fang, S. S., Fang, W. X., Fang, Y., Farinelli, R., Fava, L., Feldbauer, F., Felici, G., Feng, C. Q., Feng, J. H., Fischer, K, Fritsch, M., Fritzsch, C., Fu, C. D., Fu, J. L., Fu, Y. W., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, S., Garzia, I., Ge, P. T., Ge, Z. W., Geng, C., Gersabeck, E. M., Gilman, A, Goetzen, K., Gong, L., Gong, W. X., Gradl, W., Gramigna, S., Greco, M., Gu, M. H., Gu, Y. T., Guan, C. Y, Guan, Z. L., Guo, A. Q., Guo, L. B., Guo, M. J., Guo, R. P., Guo, Y. P., Guskov, A., H., X. T., Han, T. T., Han, W. Y., Hao, X. Q., Harris, F. A., He, K. K., He, K. L., Heinsius, F. H. H., Heinz, C. H., Heng, Y. K., Herold, C., Holtmann, T., Hong, P. C., Hou, G. Y., Hou, Y. R., Hou, Z. L., Hu, H. M., Hu, J. F., Hu, T., Hu, Y., Huang, G. S., Huang, K. X., Huang, L. Q., Huang, X. T., Huang, Y. P., Hussain, T., Hüsken, N, Imoehl, W., Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Jeong, J. H., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Ji, Y. 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Language: English
Open Access status: green
Funders: U.S. Department of Energy, Strong, European Commission, National Research Foundation, Deutsche Forschungsgemeinschaft, National Natural Science Foundation of China, Chinese Academy of Sciences, National Research Foundation of Korea, Vetenskapsrådet, University of Science and Technology of China, Istituto Nazionale di Fisica Nucleare, CAS Center for Excellence in Particle Physics, Shanghai Key Laboratory for Particle Physics and Cosmology, Institute of High Energy Physics
Awards: G1364587400, BEPCII/BESIII重粲结构精细扫描和QCD实验研究, G1612394202, G1652990914, G1857410302, G1907155555, G1985211653, BESIII上正反超子对关联产生及其衰变的实验研究, G2084762544, G222768804, G2356664819, G2367247157, G2628562399, G2777307501, G2986027706, G3150670375, BESIII上胶球的寻找和轻介子谱的研究, G3534486373, G3790219004, G3800312211, G434337789, G4799279977, G4883783264, BESIII实验类粲偶素的寻找和研究, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EMPHASIS ON MAPPING GLUONIC EXCITATIONS)..., G5840487836, G5926705778, Hochpräzisionsmessung des PionFormfaktors bei BESIII eine Verbesserung der hadronischen VakuumpolarisationsKorrektur zu (g2) des Myons, G6040273958, G6119985531, G6120316000, 北京谱仪III上Ds衰变的实验研究, G6324317254, G6371861488, 北京正负电子对撞机BESIII实验上粲重子Λc研究, G6654425054, G6746531785, G6845169765, G6927153966, G7301034409, Search for the scalar glueball in a coupled channel amplitude analysis of J/psi decays with the BESIII experiment, 北京谱仪III上奇异介子和奇异夸克偶素的实验研究, G8158558910, G8171898834, G8292866527, G8396383697, G8558816334, G868043634, Suche nach seltsamen VierQuarkZuständen im CharmoniumSektor an BESIII, G8756921898, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EXPHASIS ON MAPPING GLUONIC EXCITATIONS) USING PION AND PHOTON PROBES, G8776819963, G8944097419, G904559116, G945438540, G965723986, G983105509
OpenAlex ID: W4385681792
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