LHCb

Research group

Sub department

About

Measurement of the branching fraction of the doubly Cabibbo-suppressed decay D0→K+π-π0 and search for D0→K+π-π0π0

Physical Review D American Physical Society (APS) 105:11 (2022) 112001

Authors:

M Ablikim, MN Achasov, P Adlarson, M Albrecht, R Aliberti, A Amoroso, MR An, Q An, XH Bai, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, V Batozskaya, D Becker, K Begzsuren, N Berger, M Bertani, D Bettoni, F Bianchi, J Bloms, 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 Chelkov, C Chen, G Chen, HS Chen, ML Chen, SJ Chen, T Chen, XR Chen, XT Chen, YB Chen, ZJ Chen, WS Cheng, G Cibinetto, 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, Y Ding, J Dong, LY Dong, MY Dong, X Dong, SX Du, P Egorov, YL Fan, J Fang, SS Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, JH Feng, K Fischer, M Fritsch, CD 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, M Greco, LM Gu, MH Gu, YT Gu, CY Guan, AQ Guo, LB Guo, RP Guo, YP Guo, A Guskov, TT Han, WY Han, XQ Hao, FA Harris, KK He, KL He, FH Heinsius, CH Heinz, YK Heng, C Herold, M Himmelreich, T Holtmann, GY Hou, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, KX Huang, LQ Huang, LQ Huang, XT Huang, YP Huang, Z Huang, T Hussain, N Hüsken, W Imoehl, M Irshad, J Jackson, S Jaeger, S Janchiv, Q Ji, QP Ji, XB Ji, XL Ji, YY Ji, ZK Jia, HB Jiang, SS Jiang, XS Jiang, Y Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, MQ Jing, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, BC Ke, IK Keshk, A Khoukaz, P Kiese, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, W Kühn, JJ Lane, JS Lange, P Larin, A Lavania, L Lavezzi, ZH Lei, H Leithoff, M Lellmann, T Lenz, C Li, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, H Li, H Li, HB Li, HJ Li, HN Li, JQ Li, JS Li, JW Li, Ke Li, LJ Li, LK Li, Lei Li, MH Li, PR Li, SX Li, SY Li, T Li, WD Li, WG Li, XH Li, XL Li, Xiaoyu Li, H Liang, H Liang, H Liang, YF Liang, YT Liang, GR Liao, LZ Liao, J Libby, A Limphirat, CX Lin, DX Lin, T Lin, BJ Liu, CX Liu, D Liu, FH Liu, Fang Liu, Feng Liu, GM Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JL 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, 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 L., L L., M M., Q M., R Q., R T., X Y., Y 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, H Miao, TJ Min, RE Mitchell, XH Mo, N Yu Muchnoi, H Muramatsu, S Nakhoul, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, Y Niu, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, A Pathak, M Pelizaeus, HP Peng, K Peters, JL Ping, RG Ping, S Plura, S Pogodin, R Poling, V Prasad, H Qi, HR Qi, M Qi, TY Qi, S Qian, WB Qian, Z Qian, CF Qiao, JJ Qin, LQ Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, SQ Qu, KH Rashid, K Ravindran, CF Redmer, KJ Ren, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, HS Sang, A Sarantsev, Y Schelhaas, C Schnier, K Schoenning, M Scodeggio, KY Shan, W Shan, XY Shan, JF Shangguan, LG Shao, M Shao, CP Shen, HF Shen, XY Shen, BA Shi, HC Shi, RS Shi, X Shi, XD Shi, JJ Song, WM Song, YX Song, S Sosio, S Spataro, F Stieler, KX Su, PP Su, YJ Su, GX Sun, H Sun, HK Sun, JF Sun, L Sun, SS Sun, T Sun, WY Sun, X Sun, YJ Sun, YZ Sun, ZT Sun, YH Tan, YX Tan, CJ Tang, GY Tang, J Tang, LY Tao, QT Tao, JX Teng, V Thoren, WH Tian, Y Tian, I Uman, B Wang, BL Wang, CW Wang, DY Wang, F Wang, HJ Wang, HP Wang, K Wang, LL Wang, M Wang, MZ Wang, Meng Wang, S Wang, S Wang, T Wang, TJ Wang, W Wang, WH Wang, WP Wang, X Wang, XF Wang, XL Wang, YD Wang, YF Wang, YH Wang, YQ Wang, Z Wang, ZY Wang, Ziyi Wang, DH Wei, F Weidner, SP Wen, DJ White, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, JF Wu, LH Wu, LJ Wu, X Wu, XH Wu, Y Wu, Z Wu, L Xia, T Xiang, GY Xiao, H 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, XP Xu, YC Xu, ZP Xu, F Yan, L Yan, WB Yan, WC Yan, HJ Yang, HL Yang, HX Yang, L Yang, SL Yang, YX Yang, Yifan Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, JS Yu, T Yu, CZ Yuan, L Yuan, SC Yuan, XQ Yuan, Y Yuan, ZY Yuan, CX Yue, AA Zafar, FR Zeng, X Zeng Zeng, Y Zeng, YH Zhan, AQ Zhang, BL Zhang, BX Zhang, GY Zhang, H Zhang, HH Zhang, HH Zhang, HY Zhang, JL Zhang, JQ Zhang, JW Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, Jiawei Zhang, LM Zhang, LQ Zhang, Lei Zhang, P Zhang, QY Zhang, Shuihan Zhang, Shulei Zhang, XD Zhang, XM Zhang, XY Zhang, XY Zhang, Y Zhang, YT Zhang, YH Zhang, Yan Zhang, Yao Zhang, ZH Zhang, ZY 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, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, YH Zheng, B Zhong, C Zhong, X Zhong, H Zhou, LP Zhou, X Zhou, XK Zhou, XR Zhou, XY Zhou, YZ Zhou, J Zhu, K Zhu, KJ Zhu, LX Zhu, SH Zhu, SQ Zhu, TJ Zhu, WJ Zhu, YC Zhu, ZA Zhu, BS Zou, JH Zou
More details from the publisher
More details

Observation of the double Dalitz decay η′→e+e-e+e-

Physical Review D American Physical Society (APS) 105:11 (2022) 112010

Authors:

M Ablikim, MN Achasov, P Adlarson, M Albrecht, R Aliberti, A Amoroso, MR An, Q An, XH Bai, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, V Batozskaya, D Becker, K Begzsuren, N Berger, M Bertani, D Bettoni, F Bianchi, J Bloms, 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 Chelkov, C Chen, Chao Chen, G Chen, HS Chen, ML Chen, SJ Chen, SM Chen, T Chen, XR Chen, XT Chen, YB Chen, ZJ Chen, WS Cheng, SK Choi, X Chu, G Cibinetto, 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, Y Ding, J Dong, LY Dong, MY Dong, X Dong, SX Du, P Egorov, YL Fan, J Fang, SS Fang, WX Fang, Y Fang, R Farinelli, L Fava, F Feldbauer, G Felici, CQ Feng, JH Feng, K Fischer, M Fritsch, C Fritzsch, CD 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, M Greco, LM Gu, MH Gu, YT Gu, CY Guan, AQ Guo, LB Guo, RP Guo, YP Guo, A Guskov, TT Han, WY Han, XQ Hao, FA Harris, KK He, KL He, FH Heinsius, CH Heinz, YK Heng, C Herold, M Himmelreich, GY Hou, YR Hou, ZL Hou, HM Hu, JF Hu, T Hu, Y Hu, GS Huang, KX Huang, LQ Huang, XT Huang, YP Huang, Z Huang, T Hussain, N Hüsken, W Imoehl, M Irshad, J Jackson, S Jaeger, S Janchiv, E Jang, JH Jeong, Q Ji, QP Ji, XB Ji, XL Ji, YY Ji, ZK Jia, HB Jiang, SS Jiang, XS Jiang, Y Jiang, JB Jiao, Z Jiao, S Jin, Y Jin, MQ Jing, T Johansson, N Kalantar-Nayestanaki, XS Kang, R Kappert, M Kavatsyuk, BC Ke, IK Keshk, A Khoukaz, R Kiuchi, R Kliemt, L Koch, OB Kolcu, B Kopf, M Kuemmel, M Kuessner, A Kupsc, W Kühn, JJ Lane, JS Lange, P Larin, A Lavania, L Lavezzi, ZH Lei, H Leithoff, M Lellmann, T Lenz, C Li, C Li, CH Li, Cheng Li, DM Li, F Li, G Li, H Li, H Li, HB Li, HJ Li, HN Li, JQ Li, JS Li, JW Li, Ke Li, LJ Li, LK Li, Lei Li, MH Li, PR Li, SX Li, SY Li, T Li, WD Li, WG Li, XH Li, XL Li, Xiaoyu Li, YG Li, ZX Li, H Liang, H Liang, H Liang, YF Liang, YT Liang, GR Liao, LZ Liao, J Libby, A Limphirat, CX Lin, DX Lin, T Lin, BJ Liu, CX Liu, D Liu, FH Liu, Fang Liu, Feng Liu, GM Liu, H Liu, HB Liu, HM Liu, Huanhuan Liu, Huihui Liu, JB Liu, JL Liu, JY Liu, K Liu, KY Liu, Ke Liu, L Liu, Lu Liu, MH Liu, PL Liu, Q Liu, SB Liu, T Liu, WK Liu, WM Liu, X 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 L., L L., M M., Q M., R Q., R T., X Y., Y Ma, FE Maas, M Maggiora, S Maldaner, S Malde, QA Malik, A Mangoni, YJ Mao, ZP Mao, S Marcello, ZX Meng, G Mezzadri, H Miao, TJ Min, RE Mitchell, XH Mo, N Yu Muchnoi, Y Nefedov, F Nerling, IB Nikolaev, Z Ning, S Nisar, Y Niu, SL Olsen, Q Ouyang, S Pacetti, X Pan, Y Pan, A Pathak, M Pelizaeus, HP Peng, K Peters, JL Ping, RG Ping, S Plura, S Pogodin, V Prasad, FZ Qi, H Qi, HR Qi, M Qi, TY Qi, S Qian, WB Qian, Z Qian, CF Qiao, JJ Qin, LQ Qin, XP Qin, XS Qin, ZH Qin, JF Qiu, SQ Qu, SQ Qu, KH Rashid, CF Redmer, KJ Ren, A Rivetti, V Rodin, M Rolo, G Rong, Ch Rosner, SN Ruan, HS Sang, A Sarantsev, Y Schelhaas, C Schnier, K Schoenning, M Scodeggio, KY Shan, W Shan, XY Shan, JF Shangguan, LG Shao, M Shao, CP Shen, HF Shen, XY Shen, BA Shi, HC Shi, JY Shi, QQ Shi, RS Shi, X Shi, XD Shi, JJ Song, WM Song, YX Song, S Sosio, S Spataro, F Stieler, KX Su, PP Su, YJ Su, GX Sun, H Sun, HK Sun, JF Sun, L Sun, SS Sun, T Sun, WY Sun, X Sun, YJ Sun, YZ Sun, ZT Sun, YH Tan, YX Tan, CJ Tang, GY Tang, J Tang, LY Tao, QT Tao, M Tat, JX Teng, V Thoren, WH Tian, Y Tian, I Uman, B Wang, BL Wang, CW Wang, DY Wang, F Wang, HJ Wang, HP Wang, K Wang, LL Wang, M Wang, MZ Wang, Meng Wang, S Wang, S Wang, T Wang, TJ Wang, W Wang, WH Wang, WP Wang, X Wang, XF Wang, XL Wang, Y Wang, YD Wang, YF Wang, YH Wang, YQ Wang, Yaqian Wang, Z Wang, ZY Wang, Ziyi Wang, DH Wei, F Weidner, SP Wen, DJ White, U Wiedner, G Wilkinson, M Wolke, L Wollenberg, JF Wu, LH Wu, LJ Wu, X Wu, XH Wu, Y Wu, YJ Wu, Z Wu, L Xia, T Xiang, D Xiao, GY Xiao, H 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, XP Xu, YC Xu, ZP Xu, F Yan, L Yan, WB Yan, WC Yan, HJ Yang, HL Yang, HX Yang, L Yang, SL Yang, Tao Yang, YF Yang, YX Yang, Yifan Yang, M Ye, MH Ye, JH Yin, ZY You, BX Yu, CX Yu, G Yu, T Yu, XD Yu, CZ Yuan, L Yuan, SC Yuan, XQ Yuan, Y Yuan, ZY Yuan, CX Yue, AA Zafar, FR Zeng, X Zeng Zeng, Y Zeng, YH Zhan, AQ Zhang, BL Zhang, BX Zhang, DH Zhang, GY Zhang, H Zhang, HH Zhang, HH Zhang, HY Zhang, JL Zhang, JQ Zhang, JW Zhang, JX Zhang, JY Zhang, JZ Zhang, Jianyu Zhang, Jiawei Zhang, LM Zhang, LQ Zhang, Lei Zhang, P Zhang, QY Zhang, Shuihan Zhang, Shulei Zhang, XD Zhang, XM Zhang, XY Zhang, XY Zhang, Y Zhang, YT Zhang, YH Zhang, Yan Zhang, Yao Zhang, ZH Zhang, ZY 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, ZG Zhao, A Zhemchugov, B Zheng, JP Zheng, YH Zheng, B Zhong, C Zhong, X Zhong, H Zhou, LP Zhou, X Zhou, XK Zhou, XR Zhou, XY Zhou, YZ Zhou, J Zhu, K Zhu, KJ Zhu, LX Zhu, SH Zhu, SQ Zhu, TJ Zhu, WJ Zhu, YC Zhu, ZA Zhu, BS Zou, JH Zou
More details from the publisher
More details

CKM, mixing and CP violation results at LHCb

Particles and Nuclei International Conference 2021 (PANIC2021) Sissa Medialab (2022)

Abstract:

We review the most precise tests of the CKM model of flavour physics performed by the LHCb collaboration during 2021. These include world best measurements of both time-dependent and time-independent CP violation in charm decays, the first observation of a nonzero mass difference of the neutral charm-meson eigenstates, and the most precise determination to date of the mass difference between the B0s eigenstates. A new simultaneous combination of measurements of the CKM angle γ and of charm decays allows to improve the precision on the decay-width difference of the neutral charm-meson eigenstates by a factor of 2 with respect to the combination of charm results only.
More details from the publisher
Details from ORA
More details

Cross section measurements of the e+e− → D*+D*− and e+e− → D*+D− processes at center-of-mass energies from 4.085 to 4.600 GeV

Journal of High Energy Physics Springer 2022:5 (2022) 155

Authors:

M Ablikim, MN Achasov, P Adlarson, M Albrecht, R Aliberti, A Amoroso, MR An, Q An, XH Bai, Y Bai, O Bakina, R Baldini Ferroli, I Balossino, Y Ban, V Batozskaya, D Becker, K Begzsuren, N Berger, M Bertani, D Bettoni, F Bianchi, J Bloms, 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 Chelkov, C Chen, G Chen, HS Chen, ML Chen, SJ Chen, T Chen, XR Chen, XT Chen, YB Chen, ZJ Chen, WS Cheng, X Chu, G Cibinetto, F Cossio, JJ Cui

Abstract:

Two related searches for phenomena beyond the standard model (BSM) are performed using events with hadronic jets and significant transverse momentum imbalance. The results are based on a sample of proton–proton collisions at a center-of-mass energy of 13TeV, collected by the CMS experiment at the LHC in 2016–2018 and corresponding to an integrated luminosity of 137fb⁻¹. The first search is inclusive, based on signal regions defined by the hadronic energy in the event, the jet multiplicity, the number of jets identified as originating from bottom quarks, and the value of the kinematic variable M_(T2) for events with at least two jets. For events with exactly one jet, the transverse momentum of the jet is used instead. The second search looks in addition for disappearing tracks produced by BSM long-lived charged particles that decay within the volume of the tracking detector. No excess event yield is observed above the predicted standard model background. This is used to constrain a range of BSM models that predict the following: the pair production of gluinos and squarks in the context of supersymmetry models conserving R-parity, with or without intermediate long-lived charginos produced in the decay chain; the resonant production of a colored scalar state decaying to a massive Dirac fermion and a quark; or the pair production of scalar and vector leptoquarks each decaying to a neutrino and a top, bottom, or light-flavor quark. In most of the cases, the results obtained are the most stringent constraints to date
More details from the publisher
Details from ORA
More details

Measurement of the $Z$ boson production cross-section in proton-lead collisions at $\sqrt{s_\mathrm{NN}}=8.16\,\mathrm{TeV}$

ArXiv 2205.10213 (2022)
Details from ArXiV