Test of lepton universality with Λ b 0 → pK − ℓ + ℓ − decays
Journal of High Energy Physics Springer 2020:5 (2020) 40
Authors:
R Aaij, C Abellán Beteta, T Ackernley, B Adeva, M Adinolfi, H Afsharnia, CA Aidala, S Aiola, Z Ajaltouni, S Akar, P Albicocco, J Albrecht, F Alessio, M Alexander, A Alfonso Albero, G Alkhazov, P Alvarez Cartelle, AA Alves, S Amato, Y Amhis, L An, L Anderlini, G Andreassi, M AndreottiAbstract:
The ratio of branching fractions of the decays Λb0 → pK−e+e− and Λb0 → pK−μ+μ−, RpK−1, is measured for the first time using proton-proton collision data corresponding to an integrated luminosity of 4.7 fb−1 recorded with the LHCb experiment at center-of-mass energies of 7, 8 and 13 TeV. In the dilepton mass-squared range 0.1 < q2< 6.0 GeV2/c4 and the pK− mass range m(pK−) < 2600 MeV/c2, the ratio of branching fractions is measured to be RpK−1=1.17−0.16+0.18±0.07, where the first uncertainty is statistical and the second systematic. This is the first test of lepton universality with b baryons and the first observation of the decay Λb0 → pK−e+e−.First measurements of χcJ→Σ-Σ¯+(J=0,1,2) decays
Physical Review D American Physical Society (APS) 101:9 (2020) 092002
Authors:
M Ablikim, MN Achasov, P Adlarson, S Ahmed, M Albrecht, A Amoroso, Q An, Anita, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, K Begzsuren, JV Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, A Bortone, I Boyko, RA Briere, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, JF Chang, WL Chang, G Chelkov, DY Chen, G Chen, HS Chen, ML Chen, SJ Chen, XR Chen, YB Chen, W Cheng, G Cibinetto, F Cossio, XF Cui, HL Dai, JP Dai, XC Dai, A Dbeyssi, RB de Boer, D Dedovich, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, Y Ding, C Dong, J Dong, LY Dong, MY Dong, SX Du, J Fang, SS Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, M Fritsch, CD Fu, Y Fu, XL Gao, Y Gao, Y Gao, YG Gao, I Garzia, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, M Greco, LM Gu, MH Gu, S Gu, YT Gu, CY Guan, AQ Guo, LB Guo, RP Guo, YP Guo, YP Guo, A Guskov, S Han, TT Han, TZ Han, XQ Hao, FA Harris, KL He, FH Heinsius, T Held, YK Heng, M Himmelreich, T Holtmann, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, LQ Huang, XT Huang, Z Huang, N Huesken, T Hussain, W Ikegami Andersson, W Imoehl, M Irshad, S Jaeger, S Janchiv, Q Ji, QP Ji, XB Ji, XL Ji, HB Jiang, XS Jiang, XY Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, M Kavatsyuk, BC Ke, IK Keshk, A Khoukaz, P Kiese, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, MG Kurth, W Kühn, JJ Lane, JS Lange, P Larin, L Lavezzi, H Leithoff, M Lellmann, T Lenz, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, HB Li, HJ Li, JL Li, JQ Li, Ke Li, LK Li, Lei Li, PL Li, PR Li, SY Li, WD Li, WG Li, XH Li, XL Li, ZB Li, ZY Li, H Liang, H Liang, YF Liang, YT Liang, LZ Liao, J Libby, CX Lin, B Liu, BJ Liu, CX Liu, D Liu, DY Liu, FH Liu, Fang Liu, Feng Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, Q Liu, SB Liu, Shuai Liu, T Liu, X Liu, YB Liu, ZA Liu, ZQ Liu, YF Long, XC Lou, HJ Lu, JD Lu, JG Lu, XL Lu, Y Lu, YP Lu, CL Luo, MX Luo, PW Luo, T Luo, XL Luo, S Lusso, XR Lyu, F C., H L., L L., M M., Q M., R Q., R T., X N., X X., X Y., Y M., FE Maas, M Maggiora, S Maldaner, S Malde, QA Malik, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, TJ Min, RE Mitchell, XH Mo, YJ Mo, N Yu Muchnoi, H Muramatsu, S Nakhoul, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, P Patteri, M Pelizaeus, HP Peng, K Peters, J Pettersson, JL Ping, RG Ping, A Pitka, R Poling, V Prasad, H Qi, HR Qi, M Qi, TY Qi, S Qian, W-B Qian, Z Qian, CF Qiao, LQ Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, KH Rashid, K Ravindran, CF Redmer, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, M Rump, A Sarantsev, M Savrié, Y Schelhaas, C Schnier, K Schoenning, DC Shan, W Shan, XY Shan, M Shao, CP Shen, PX Shen, XY Shen, HC Shi, RS Shi, X Shi, XD Shi, JJ Song, QQ Song, WM Song, YX Song, S Sosio, S Spataro, FF Sui, GX Sun, JF Sun, L Sun, SS Sun, T Sun, WY Sun, YJ Sun, YK Sun, YZ Sun, ZT Sun, YH Tan, YX Tan, CJ Tang, GY Tang, J Tang, V Thoren, B Tsednee, I Uman, B Wang, BL Wang, CW Wang, DY Wang, HP Wang, K Wang, LL Wang, M Wang, MZ Wang, Meng Wang, WH Wang, WP Wang, X Wang, XF Wang, XL Wang, Y Wang, Y Wang, YD Wang, YF Wang, YQ Wang, Z Wang, ZY Wang, Ziyi Wang, Zongyuan Wang, T Weber, DH Wei, P Weidenkaff, F Weidner, SP Wen, DJ White, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, JF Wu, LH Wu, LJ Wu, X Wu, Z Wu, L Xia, H Xiao, SY Xiao, YJ Xiao, ZJ Xiao, XH Xie, YG Xie, YH Xie, TY Xing, XA Xiong, GF Xu, JJ Xu, QJ Xu, W Xu, XP Xu, L Yan, L Yan, WB Yan, WC Yan, Xu Yan, HJ Yang, HX Yang, L Yang, RX Yang, SL Yang, YH Yang, YX Yang, Yifan Yang, Zhi Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, CZ Yuan, W Yuan, XQ Yuan, Y Yuan, ZY Yuan, CX Yue, A Yuncu, AA Zafar, Y Zeng, BX Zhang, Guangyi Zhang, HH Zhang, HY Zhang, JL Zhang, JQ Zhang, JW Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, Jiawei Zhang, L Zhang, Lei Zhang, S Zhang, SF Zhang, TJ Zhang, XY Zhang, Y Zhang, YH Zhang, YT Zhang, Yan Zhang, Yao Zhang, Yi Zhang, ZH Zhang, ZY Zhang, G Zhao, J Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, Q Zhao, SJ Zhao, YB Zhao, YX Zhao Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, Y Zheng, YH Zheng, B Zhong, C Zhong, LP Zhou, Q Zhou, X Zhou, XK Zhou, XR Zhou, AN Zhu, J Zhu, K Zhu, KJ Zhu, SH Zhu, WJ Zhu, XL Zhu, YC Zhu, ZA Zhu, BS Zou, JH ZouStudy of e + e − → D + D − π + π − at center-of-mass energies from 4.36 to 4.60GeV
Physics Letters B Elsevier 804 (2020) 135395
Authors:
BESIII Collaboration, M Ablikim, MN Achasov, P Adlarson, S Ahmed, M Albrecht, M Alekseev, A Amoroso, FF An, Q An, Y Bai, O Bakina, R Baldini Ferroli, I Balossino Balossino, Y Ban, K Begzsuren, JV Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, I Boyko, RA Briere, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, J Chai, JF Chang, WL Chang, G Chelkov, DY Chen, G Chen, HS Chen, JC Chen, ML Chen, SJ Chen, YB Chen, W Cheng, G Cibinetto, F Cossio, XF Cui, HL Dai, JP Dai, XC Dai, A Dbeyssi, D Dedovich, ZY Deng, A Denig, I Denysenko, M Destefanis, F De Mori, Y Ding, C Dong, J Dong, LY Dong, MY Dong, ZL Dou, SX Du, JZ Fan, J Fang, SS Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, M Fritsch, CD Fu, Y Fu, Q Gao, XL Gao, Y Gao, Y Gao, YG Gao, Z Gao, B Garillon, I Garzia, EM Gersabeck, A Gilman, K Goetzen, L Gong, WX Gong, W Gradl, M Greco, LM Gu, MH Gu, S Gu, YT Gu, AQ Guo, LB Guo, RP Guo, YP Guo, A Guskov, S Han, XQ Hao, FA Harris, KL He, FH Heinsius, T Held, YK Heng, M Himmelreich, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, JS Huang, XT Huang, XZ Huang, N Huesken, T Hussain, W Ikegami Andersson, W Imoehl, M Irshad, Q Ji, QP Ji, XB Ji, XL Ji, HL Jiang, XS Jiang, XY Jiang, JB Jiao, Z Jiao, DP Jin, S Jin, Y Jin, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, M Kavatsyuk, BC Ke, IK Keshk, A Khoukaz, P Kiese, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, M Kurth, MG Kurth, W Kühn, JS Lange, P Larin, L Lavezzi, H Leithoff, T Lenz, C Li, Cheng Li, DM Li, F Li, FY Li, G Li, HB Li, HJ Li, JC Li, JW Li, Ke Li, LK Li, Lei Li, PL Li, PR Li, QY Li, WD Li, WG Li, XH Li, XL Li, XN Li, XQ Li, ZB Li, ZY Li, H Liang, H Liang, YF Liang, YT Liang, GR Liao, LZ Liao, J Libby, CX Lin, DX Lin, YJ Lin, B Liu, BJ Liu, CX Liu, D Liu, DY Liu, FH Liu, Fang Liu, Feng Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JY Liu, KY Liu, Ke Liu, LD Liu, LY Liu, Q Liu, SB Liu, T Liu, X Liu, XY Liu, YB Liu, ZA Liu, Zhiqing Liu, YF Long, XC Lou, HJ Lu, JD Lu, JG Lu, Y Lu, YP Lu, CL Luo, MX Luo, PW Luo, T Luo, XL Luo, S Lusso, XR Lyu, FC Ma, HL Ma, LL Ma, MM Ma, QM Ma, XN Ma, XX Ma, XY Ma, YM Ma, FE Maas, M Maggiora, S Maldaner, S Malde, QA Malik, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, JG Messchendorp, G Mezzadri, J Min, TJ Min, RE Mitchell, XH Mo, YJ Mo, C Morales Morales, N Yu Muchnoi, H Muramatsu, A Mustafa, S Nakhoul, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, SL Niu, SL Olsen, Q Ouyang, S Pacetti, Y Pan, M Papenbrock, P Patteri, M Pelizaeus, HP Peng, K Peters, J Pettersson, JL Ping, RG Ping, A Pitka, R Poling, V Prasad, M Qi, TY Qi, S Qian, CF Qiao, N Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, KH Rashid, CF Redmer, M Richter, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, M Rump, A Sarantsev, M Savrié, K Schoenning, W Shan, XY Shan, M Shao, CP Shen, PX Shen, XY Shen, HY Sheng, X Shi, XD Shi, JJ Song, QQ Song, XY Song, S Sosio, C Sowa, S Spataro, FF Sui, GX Sun, JF Sun, L Sun, SS Sun, XH Sun, YJ Sun, YK Sun, YZ Sun, ZJ Sun, ZT Sun, YT Tan, CJ Tang, GY Tang, X Tang, V Thoren, B Tsednee, I Uman, B Wang, BL Wang, CW Wang, DY Wang, HH Wang, K Wang, LL Wang, LS Wang, M Wang, MZ Wang, Meng Wang, PL Wang, RM Wang, WP Wang, X Wang, XF Wang, XL Wang, Y Wang, Y Wang, YF Wang, Z Wang, ZG Wang, ZY Wang, Zongyuan Wang, T Weber, DH Wei, P Weidenkaff, HW Wen, SP Wen, U Wiedner, G Wilkinson, M Wolke, LH Wu, LJ Wu, Z Wu, L Xia, Y Xia, SY Xiao, YJ Xiao, ZJ Xiao, YG Xie, YH Xie, TY Xing, XA Xiong, QL Xiu, GF Xu, JJ Xu, L Xu, QJ Xu, W Xu, XP Xu, F Yan, L Yan, WB Yan, WC Yan, YH Yan, HJ Yang, HX Yang, L Yang, RX Yang, SL Yang, YH Yang, YX Yang, Yifan Yang, ZQ Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, JS Yu, CZ Yuan, XQ Yuan, Y Yuan, A Yuncu, AA Zafar, Y Zeng, BX Zhang, BY Zhang, CC Zhang, DH Zhang, HH Zhang, HY Zhang, J Zhang, JL Zhang, JQ Zhang, JW Zhang, JY Zhang, JZ Zhang, K Zhang, L Zhang, SF Zhang, TJ Zhang, XY Zhang, Y Zhang, YH Zhang, YT Zhang, Yang Zhang, Yao Zhang, Yi Zhang, Yu Zhang, ZH Zhang, ZP Zhang, ZY Zhang, G Zhao, JW Zhao, JY Zhao, JZ Zhao, Lei Zhao, Ling Zhao, MG Zhao, Q Zhao, SJ Zhao, TC Zhao, YB Zhao, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, Y Zheng, YH Zheng, B Zhong, L Zhou, LP Zhou, Q Zhou, X Zhou, XK Zhou, XR Zhou, Xiaoyu Zhou, Xu Zhou, AN Zhu, J Zhu, J Zhu, K Zhu, KJ Zhu, SH Zhu, WJ Zhu, XL Zhu, YC Zhu, YS Zhu, ZA Zhu, J Zhuang, BS Zou, JH ZouFuture Physics Programme of BESIII *
Chinese Physics C IOP Publishing 44:4 (2020) 040001-040001
Authors:
M Ablikim, MN Achasov, P Adlarson, S Ahmed, M Albrecht, M Alekseev, A Amoroso, FF An, Q An, Y Bai, O Bakina, R Baldini Ferroli, Y Ban, K Begzsuren, JV Bennett, N Berger, M Bertani, D Bettoni, F Bianchi, J Biernat, J Bloms, I Boyko, RA Briere, L Calibbi, H Cai, X Cai, A Calcaterra, GF Cao, N Cao, SA Cetin, J Chai, JF Chang, WL Chang, J Charles, G Chelkov, None Chen, G Chen, HS Chen, JC Chen, ML Chen, SJ Chen, YB Chen, HY Cheng, W Cheng, G Cibinetto, F Cossio, XF Cui, HL Dai, JP Dai, XC DaiAbstract:
Exotic physics typically encompasses two categories of exotic particles: ``dark" particles beyond the standard model and exotic hadrons within the extended standard model. We present a summary of the recent results on exotic particles at BESIII, which could play a crucial role in the study of exotic physics.Comment: contribution to the 2024 Electroweak session of the 58th Rencontres de MorionMeasurement of |Vcb| with Bs0→Ds(*)-μ+νμ decays
Physical Review D American Physical Society (APS) 101:7 (2020) 072004