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First measurements of the absolute branching fraction of Λc(2625)+→Λc+π+π- and upper limit on Λc(2595)+→Λc+π+π-

Physical Review D American Physical Society (APS) 109:11 (2024) 112007

Authors:

M Ablikim, MN Achasov, P Adlarson, XC Ai, R Aliberti, A Amoroso, MR An, Q An, Y Bai, O Bakina, I Balossino, Y Ban, H-R Bao, V Batozskaya, K Begzsuren, N Berger, M Berlowski, M Bertani, D Bettoni, F Bianchi, E Bianco, A Bortone, I Boyko, RA Briere, A Brueggemann, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, JF Chang, WL Chang, G R., G Chelkov, C Chen, Chao Chen, G Chen, HS Chen, ML Chen, SJ Chen, SL Chen, SM Chen, T Chen, XR Chen, XT Chen, YB Chen, YQ Chen, ZJ Chen, SK Choi, X Chu, G Cibinetto, SC Coen, F Cossio, JJ Cui, HL Dai, JP Dai, A Dbeyssi, RE de Boer, D Dedovich, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, B Ding, XX Ding, Y Ding, Y Ding, J Dong, LY Dong, MY Dong, X Dong, MC Du, SX Du, ZH Duan, P Egorov, YH Fan, J Fang, SS Fang, WX Fang, Y Fang, YQ Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, JH Feng, YT Feng, K Fischer, M Fritsch, CD Fu, JL Fu, YW Fu, H Gao, YN Gao, Yang Gao, S Garbolino, I Garzia, PT Ge, ZW Ge, C Geng, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, S Gramigna, M Greco, MH Gu, YT Gu, CY Guan, ZL Guan, AQ Guo, LB Guo, MJ Guo, RP Guo, YP Guo, A Guskov, J Gutierrez, KL Han, TT Han, WY Han, XQ Hao, FA Harris, KK He, KL He, FHH Heinsius, CH Heinz, YK Heng, C Herold, T Holtmann, PC Hong, GY Hou, XT Hou, YR Hou, ZL Hou, BY Hu, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, KX Huang, LQ Huang, XT Huang, YP Huang, T Hussain, N Hüsken, N in der Wiesche, M Irshad, J Jackson, S Jaeger, S Janchiv, JH Jeong, Q Ji, QP Ji, XB Ji, XL Ji, YY Ji, XQ Jia, ZK Jia, HB Jiang, PC Jiang, SS Jiang, TJ Jiang, XS Jiang, Y Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, MQ Jing, XM Jing, T Johansson, X K., S Kabana, N Kalantar-Nayestanaki, XL Kang, XS Kang, M Kavatsyuk, BC Ke, V Khachatryan, A Khoukaz, R Kiuchi, OB Kolcu, B Kopf, M Kuessner, A Kupsc, W Kühn, JJ Lane, P Larin, L Lavezzi, TT Lei, ZH Lei, H Leithoff, M Lellmann, T Lenz, C Li, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, H Li, HB Li, HJ Li, HN Li, Hui Li, JR Li, JS Li, JW Li, Ke Li, LJ Li, LK Li, Lei Li, MH Li, PR Li, QX Li, SX Li, T Li, WD Li, WG Li, XH Li, XL Li, Xiaoyu Li, YG Li, ZJ Li, ZX Li, C Liang, H Liang, H Liang, YF Liang, YT Liang, GR Liao, LZ Liao, YP Liao, J Libby, A Limphirat, DX Lin, T Lin, BJ Liu, BX Liu, C Liu, CX Liu, FH Liu, Fang Liu, Feng Liu, GM Liu, H Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, LC Liu, Lu Liu, MH Liu, PL Liu, Q Liu, SB Liu, T Liu, WK Liu, WM Liu, X Liu, Y Liu, Y Liu, YB Liu, ZA Liu, ZQ Liu, XC Lou, FX Lu, HJ Lu, JG Lu, XL Lu, Y Lu, YP Lu, ZH Lu, CL Luo, MX Luo, T Luo, XL Luo, XR Lyu, YF Lyu, F C., H Ma, H L., J L., L L., M M., Q M., R Q., X Y., Y Ma, Y M., FE Maas, M Maggiora, S Malde, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, H Miao, TJ Min, RE Mitchell, XH Mo, B Moses, N Yu Muchnoi, J Muskalla, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, QL Niu, WD Niu, Y Niu, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, YP Pei, M Pelizaeus, HP Peng, YY Peng, K Peters, JL Ping, RG Ping, S Plura, V Prasad, FZ Qi, H Qi, HR Qi, M Qi, TY Qi, S Qian, WB Qian, CF Qiao, JJ Qin, LQ Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, CF Redmer, KJ Ren, A Rivetti, M Rolo, G Rong, Ch Rosner, SN Ruan, N Salone, A Sarantsev, Y Schelhaas, K Schoenning, M Scodeggio, KY Shan, W Shan, XY Shan, JF Shangguan, LG Shao, M Shao, CP Shen, HF Shen, WH Shen, XY Shen, BA Shi, HC Shi, JL Shi, JY Shi, QQ Shi, RS Shi, X Shi, JJ Song, TZ Song, WM Song, YJ Song, S Sosio, S Spataro, F Stieler, YJ Su, GB Sun, GX Sun, H Sun, HK Sun, JF Sun, K Sun, L Sun, SS Sun, T Sun, WY Sun, Y Sun, YJ Sun, YZ Sun, ZT Sun, YX Tan, CJ Tang, GY Tang, J Tang, YA Tang, LY Tao, QT Tao, M Tat, JX Teng, V Thoren, WH Tian, WH Tian, Y Tian, ZF Tian, I Uman, Y Wan, SJ Wang, B Wang, BL Wang, Bo Wang, CW Wang, DY Wang, F Wang, HJ Wang, JP Wang, K Wang, LL Wang, M Wang, Meng Wang, NY Wang, S Wang, S Wang, T Wang, TJ Wang, W Wang, W Wang, WP Wang, X Wang, XF Wang, XJ Wang, XL Wang, Y Wang, YD Wang, YF Wang, YL Wang, YN Wang, YQ Wang, Yaqian Wang, Yi Wang, Z Wang, ZL Wang, ZY Wang, Ziyi Wang, D Wei, DH Wei, F Weidner, SP Wen, CW Wenzel, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, C Wu, JF Wu, LH Wu, LJ Wu, X Wu, XH Wu, Y Wu, YH Wu, YJ Wu, Z Wu, L Xia, XM Xian, T Xiang, D Xiao, GY Xiao, SY Xiao, YL Xiao, ZJ Xiao, C Xie, XH Xie, Y Xie, YG Xie, YH Xie, ZP Xie, TY Xing, CF Xu, CJ Xu, GF Xu, HY Xu, QJ Xu, QN Xu, W Xu, WL Xu, XP Xu, YC Xu, ZP Xu, ZS Xu, F Yan, L Yan, WB Yan, WC Yan, XQ Yan, HJ Yang, HL Yang, HX Yang, Tao Yang, Y Yang, YF Yang, YX Yang, Yifan Yang, ZW Yang, ZP Yao, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, XD Yu, CZ Yuan, L Yuan, SC Yuan, Y Yuan, ZY Yuan, CX Yue, AA Zafar, FR Zeng, SH Zeng, X Zeng, Y Zeng, YJ Zeng, XY Zhai, YC Zhai, YH Zhan, AQ Zhang, BL Zhang, BX Zhang, DH Zhang, GY Zhang, H Zhang, HC Zhang, HH Zhang, HH Zhang, HQ Zhang, HY Zhang, J Zhang, J Zhang, JJ Zhang, JL Zhang, JQ Zhang, JW Zhang, JX Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, LM Zhang, LQ Zhang, Lei Zhang, P Zhang, QY Zhang, Shuihan Zhang, Shulei Zhang, XD Zhang, XM Zhang, XY Zhang, Y Zhang, Y Zhang, YT Zhang, YH Zhang, Yan Zhang, Yao Zhang, ZD Zhang, ZH Zhang, ZL Zhang, ZY Zhang, ZY Zhang, G Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, RP Zhao, SJ Zhao, YB Zhao, YX Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, WJ Zheng, YH Zheng, B Zhong, X Zhong, H Zhou, LP Zhou, X Zhou, XK Zhou, XR Zhou, XY Zhou, YZ Zhou, J Zhu, K Zhu, KJ Zhu, L Zhu, LX Zhu, SH Zhu, SQ Zhu, TJ Zhu, WJ Zhu, YC Zhu, ZA Zhu, JH Zou, J Zu
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Search for e+e-→K+K-ψ(3770) at center-of-mass energies from 4.84 to 4.95 GeV

Physical Review D American Physical Society (APS) 109:11 (2024) 112019

Authors:

M Ablikim, MN Achasov, P Adlarson, O Afedulidis, XC Ai, R Aliberti, A Amoroso, Q An, Y Bai, O Bakina, I Balossino, Y Ban, H-R Bao, V Batozskaya, K Begzsuren, N Berger, M Berlowski, M Bertani, D Bettoni, F Bianchi, E Bianco, A Bortone, I Boyko, RA Briere, A Brueggemann, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, JF Chang, WL Chang, G R., G Chelkov, C Chen, CH Chen, Chao Chen, G Chen, HS Chen, ML Chen, SJ Chen, SL Chen, SM Chen, T Chen, XR Chen, XT Chen, YB Chen, YQ Chen, ZJ Chen, ZY Chen, SK Choi, X Chu, G Cibinetto, F Cossio, JJ Cui, HL Dai, JP Dai, A Dbeyssi, RE de Boer, D Dedovich, CQ Deng, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, B Ding, XX Ding, Y Ding, Y Ding, J Dong, LY Dong, MY Dong, X Dong, MC Du, SX Du, ZH Duan, P Egorov, YH Fan, J Fang, J Fang, SS Fang, WX Fang, Y Fang, YQ Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, JH Feng, YT Feng, K Fischer, M Fritsch, CD Fu, JL Fu, YW Fu, H Gao, YN Gao, Yang Gao, S Garbolino, I Garzia, L Ge, PT Ge, ZW Ge, C Geng, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, S Gramigna, M Greco, MH Gu, YT Gu, CY Guan, ZL Guan, AQ Guo, LB Guo, MJ Guo, RP Guo, YP Guo, A Guskov, J Gutierrez, KL Han, TT Han, XQ Hao, FA Harris, KK He, KL He, FH Heinsius, CH Heinz, YK Heng, C Herold, T Holtmann, PC Hong, GY Hou, XT Hou, YR Hou, ZL Hou, BY Hu, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, KX Huang, LQ Huang, XT Huang, YP Huang, T Hussain, F Hölzken, N Hüsken, N in der Wiesche, M Irshad, J Jackson, S Janchiv, JH Jeong, Q Ji, QP Ji, W Ji, XB Ji, XL Ji, YY Ji, XQ Jia, ZK Jia, D Jiang, HB Jiang, PC Jiang, SS Jiang, TJ Jiang, XS Jiang, Y Jiang, JB Jiao, JK Jiao, Z Jiao, S Jin, Y Jin, MQ Jing, XM Jing, T Johansson, S Kabana, N Kalantar-Nayestanaki, XL Kang, XS Kang, M Kavatsyuk, BC Ke, V Khachatryan, A Khoukaz, R Kiuchi, OB Kolcu, B Kopf, M Kuessner, X Kui, N Kumar, A Kupsc, W Kühn, JJ Lane, P Larin, L Lavezzi, TT Lei, ZH Lei, H Leithoff, M Lellmann, T Lenz, C Li, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, H Li, HB Li, HJ Li, HN Li, Hui Li, JR Li, JS Li, Ke Li, LJ Li, LK Li, Lei Li, MH Li, PR Li, QM Li, QX Li, R Li, SX Li, T Li, WD Li, WG Li, X Li, XH Li, XL Li, Xiaoyu Li, YG Li, ZJ Li, ZX Li, C Liang, H Liang, H Liang, YF Liang, YT Liang, GR Liao, LZ Liao, YP Liao, J Libby, A Limphirat, DX Lin, T Lin, BJ Liu, BX Liu, C Liu, CX Liu, FH Liu, Fang Liu, Feng Liu, GM Liu, H Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, LC Liu, Lu Liu, MH Liu, PL Liu, Q Liu, SB Liu, T Liu, WK Liu, WM Liu, X Liu, X Liu, Y Liu, Y Liu, YB Liu, ZA Liu, ZD Liu, ZQ Liu, XC Lou, FX Lu, HJ Lu, JG Lu, XL Lu, Y Lu, YP Lu, ZH Lu, CL Luo, MX Luo, T Luo, XL Luo, XR Lyu, YF Lyu, F C., H Ma, H L., J L., L L., M M., Q M., R Q., X T., X Y., Y Ma, Y M., FE Maas, M Maggiora, S Malde, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, H Miao, TJ Min, RE Mitchell, XH Mo, B Moses, N Yu Muchnoi, J Muskalla, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, QL Niu, WD Niu, Y Niu, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, YP Pei, M Pelizaeus, HP Peng, YY Peng, K Peters, JL Ping, RG Ping, S Plura, V Prasad, FZ Qi, H Qi, HR Qi, M Qi, TY Qi, S Qian, WB Qian, CF Qiao, XK Qiao, JJ Qin, LQ Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, ZH Qu, CF Redmer, KJ Ren, A Rivetti, M Rolo, G Rong, Ch Rosner, SN Ruan, N Salone, A Sarantsev, Y Schelhaas, K Schoenning, M Scodeggio, KY Shan, W Shan, XY Shan, ZJ Shang, JF Shangguan, LG Shao, M Shao, CP Shen, HF Shen, WH Shen, XY Shen, BA Shi, HC Shi, JL Shi, JY Shi, QQ Shi, RS Shi, SY Shi, X Shi, JJ Song, TZ Song, WM Song, YJ Song, YX Song, S Sosio, S Spataro, F Stieler, YJ Su, GB Sun, GX Sun, H Sun, HK Sun, JF Sun, K Sun, L Sun, SS Sun, T Sun, WY Sun, Y Sun, YJ Sun, YZ Sun, ZQ Sun, ZT Sun, CJ Tang, GY Tang, J Tang, YA Tang, LY Tao, QT Tao, M Tat, JX Teng, V Thoren, WH Tian, Y Tian, ZF Tian, I Uman, Y Wan, SJ Wang, B Wang, BL Wang, Bo Wang, DY Wang, F Wang, HJ Wang, JP Wang, K Wang, LL Wang, M Wang, Meng Wang, NY Wang, S Wang, S Wang, T Wang, TJ Wang, W Wang, W Wang, WP Wang, X Wang, XF Wang, XJ Wang, XL Wang, XN Wang, Y Wang, YD Wang, YF Wang, YL Wang, YN Wang, YQ Wang, Yaqian Wang, Yi Wang, Z Wang, ZL Wang, ZY Wang, Ziyi Wang, D Wei, DH Wei, F Weidner, SP Wen, YR Wen, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, C Wu, JF Wu, LH Wu, LJ Wu, X Wu, XH Wu, Y Wu, YH Wu, YJ Wu, Z Wu, L Xia, XM Xian, BH Xiang, T Xiang, D Xiao, GY Xiao, SY Xiao, YL Xiao, ZJ Xiao, C Xie, XH Xie, Y Xie, YG Xie, YH Xie, ZP Xie, TY Xing, CF Xu, CJ Xu, GF Xu, HY Xu, QJ Xu, QN Xu, W Xu, WL Xu, XP Xu, YC Xu, ZP Xu, ZS Xu, F Yan, L Yan, WB Yan, WC Yan, XQ Yan, HJ Yang, HL Yang, HX Yang, Tao Yang, Y Yang, YF Yang, YX Yang, Yifan Yang, ZW Yang, ZP Yao, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, XD Yu, YC Yu, CZ Yuan, J Yuan, L Yuan, SC Yuan, Y Yuan, ZY Yuan, CX Yue, AA Zafar, FR Zeng, SH Zeng, X Zeng, Y Zeng, YJ Zeng, YJ Zeng, XY Zhai, YC Zhai, YH Zhan, AQ Zhang, BL Zhang, BX Zhang, DH Zhang, GY Zhang, H Zhang, HC Zhang, HH Zhang, HH Zhang, HQ Zhang, HY Zhang, J Zhang, J Zhang, JJ Zhang, JL Zhang, JQ Zhang, JW Zhang, JX Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, LM Zhang, Lei Zhang, P Zhang, QY Zhang, RY Zhang, Shuihan Zhang, Shulei Zhang, XD Zhang, XM Zhang, XY Zhang, Y Zhang, YT Zhang, YH Zhang, YM Zhang, Yan Zhang, Yao Zhang, ZD Zhang, ZH Zhang, ZL Zhang, ZY Zhang, ZY Zhang, G Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, RP Zhao, SJ Zhao, YB Zhao, YX Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, WJ Zheng, YH Zheng, B Zhong, X Zhong, H Zhou, JY Zhou, LP Zhou, X Zhou, XK Zhou, XR Zhou, XY Zhou, YZ Zhou, J Zhu, K Zhu, KJ Zhu, L Zhu, LX Zhu, SH Zhu, SQ Zhu, TJ Zhu, WJ Zhu, YC Zhu, ZA Zhu, JH Zou, J Zu
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Measurement of absolute branching fractions of D s + hadronic decays

Journal of High Energy Physics Springer 2024:5 (2024) 335

Authors:

M Ablikim, MN Achasov, P Adlarson, O Afedulidis, XC Ai, R Aliberti, A Amoroso, Q An, Y Bai, O Bakina, I Balossino, Y Ban, H-R Bao, V Batozskaya, K Begzsuren, N Berger, M Berlowski, M Bertani, D Bettoni, F Bianchi, E Bianco, A Bortone, I Boyko, RA Briere

Abstract:

Using e+e− collision data collected at the BESIII detector at center-of-mass energies between 4.128 and 4.226 GeV, corresponding to an integrated luminosity of 7.33 fb−1, we determine the absolute branching fractions of fifteen hadronic Ds+ decays with a double-tag technique. In particular, we make precise measurements of the branching fractions BDs+→K+K−π+=5.49±0.04±0.07%, BDs+→KS0K+=1.50±0.01±0.01% and BDs+→K+K−π+π0=5.50±0.05±0.11%, where the first uncertainties are statistical and the second ones are systematic. The CP asymmetries in these decays are also measured and all are found to be compatible with zero.
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Measurements of the branching fraction ratio B ϕ → μ + μ − / B ϕ → e + e − with charm meson decays

Journal of High Energy Physics Springer 2024:5 (2024) 293

Authors:

R Aaij, ASW Abdelmotteleb, C Abellan Beteta, F Abudinén, T Ackernley, B Adeva, M Adinolfi, P Adlarson, C Agapopoulou, CA Aidala, Z Ajaltouni, S Akar, K Akiba, P Albicocco, J Albrecht, F Alessio, M Alexander, A Alfonso Albero, Z Aliouche, P Alvarez Cartelle, R Amalric, S Amato, JL Amey, Y Amhis, D Bacher

Abstract:

Measurements of the branching fraction ratio Bϕ→μ+μ−/Bϕ→e+e− with Ds+→π+ϕ and D+→ π+ϕ decays, denoted Rϕπs and Rϕπd, are presented. The analysis is performed using a dataset corresponding to an integrated luminosity of 5.4 fb−1 of pp collision data collected with the LHCb experiment. The branching fractions are normalised with respect to the B+ → K+J/ψ(→ e+e−) and B+ → K+J/ψ(→ μ+μ−) decay modes. The combination of the results yieldsRϕπ=1.022±0.012stat±0.048syst. The result is compatible with previous measurements of the ϕ → ℓ+ℓ− branching fractions and predictions based on the Standard Model.
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Measurement of associated J/ψ - ψ (2 S ) production cross-section in pp collisions at s = 13 TeV

Journal of High Energy Physics Springer 2024:5 (2024) 259

Authors:

R Aaij, ASW Abdelmotteleb, C Abellan Beteta, F Abudinén, T Ackernley, B Adeva, M Adinolfi, P Adlarson, H Afsharnia, C Agapopoulou, CA Aidala, Z Ajaltouni, S Akar, K Akiba, P Albicocco, J Albrecht, F Alessio, M Alexander, A Alfonso Albero, Z Aliouche, P Alvarez Cartelle, R Amalric, S Amato, JL Amey, D Bacher

Abstract:

The cross-section of associated J/ψ-ψ(2S) production in proton-proton collisions at a centre-of-mass energy of s = 13 TeV is measured using a data sample corresponding to an integrated luminosity of 4.2 fb−1, collected by the LHCb experiment. The measurement is performed for both J/ψ and ψ(2S) mesons having transverse momentum pT< 14 GeV/c and rapidity 2.0 < y < 4.5, assuming negligible polarisation of the J/ψ and ψ(2S) mesons. The production cross-section is measured to be 4.5 ± 0.7 ± 0.3 nb, where the first uncertainty is statistical and the second systematic. The differential cross-sections are measured as functions of several kinematic variables of the J/ψ-ψ(2S) candidates. The results are combined with a measurement of J/ψ-J/ψ production, giving a cross-section ratio between J/ψ-ψ(2S) and J/ψ-J/ψ production of 0.274 ± 0.044 ± 0.008, where the first uncertainty is statistical and the second systematic.
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