Observation of the Decay X(3872)→π^{0}χ_{c1}(1P)

M Ablikim¹, M N Achasov², S Ahmed³, M Albrecht⁴, M Alekseev^{5

6}, A Amoroso^{5

6}, F F An¹, Q An^{7

8}, Y Bai⁹, O Bakina¹⁰, R Baldini Ferroli¹¹, Y Ban¹², K Begzsuren¹³, J V Bennett¹⁴, N Berger¹⁵, M Bertani¹¹, D Bettoni¹¹, F Bianchi^{5

6}, J Bloms¹⁶, I Boyko¹⁰, R A Briere¹⁴, H Cai¹⁷, X Cai^{1

7}, A Calcaterra¹¹, G F Cao^{1

18}, N Cao^{1

18}, S A Cetin¹⁹, J Chai⁶, J F Chang^{1

7}, W L Chang^{1

18}, G Chelkov¹⁰, D Y Chen²⁰, G Chen¹, H S Chen^{1

18}, J C Chen¹, M L Chen^{1

7}, S J Chen²¹, Y B Chen^{1

7}, W Cheng⁶, G Cibinetto²², F Cossio⁶, X F Cui²³, H L Dai^{1

7}, J P Dai²⁴, X C Dai^{1

18}, A Dbeyssi³, D Dedovich¹⁰, Z Y Deng¹, A Denig¹⁵, I Denysenko¹⁰, M Destefanis^{5

6}, F De Mori^{5

6}, Y Ding²⁵, C Dong²³, J Dong^{1

7}, L Y Dong^{1

18}, M Y Dong^{1

7

18}, Z L Dou²¹, S X Du²⁶, J Z Fan²⁷, J Fang^{1

7}, S S Fang^{1

18}, Y Fang¹, R Farinelli^{22

28}, L Fava^{29

6}, F Feldbauer⁴, G Felici¹¹, C Q Feng^{7

8}, M Fritsch⁴, C D Fu¹, Y Fu¹, Q Gao¹, X L Gao^{7

8}, Y Gao³⁰, Y Gao²⁷, Y G Gao²⁰, Z Gao^{7

8}, B Garillon¹⁵, I Garzia²², A Gilman³¹, K Goetzen³², L Gong²³, W X Gong^{1

7}, W Gradl¹⁵, M Greco^{5

6}, L M Gu²¹, M H Gu^{1

7}, S Gu³³, Y T Gu³⁴, A Q Guo³⁵, L B Guo³⁶, R P Guo^{1

18}, Y P Guo¹⁵, A Guskov¹⁰, S Han¹⁷, X Q Hao³⁷, F A Harris³⁸, K L He^{1

18}, F H Heinsius⁴, T Held⁴, Y K Heng^{1

7

18}, Y R Hou¹⁸, Z L Hou¹, H M Hu^{1

18}, J F Hu²⁴, T Hu^{1

7

18}, Y Hu¹, G S Huang^{7

8}, J S Huang³⁷, X T Huang³⁹, X Z Huang²¹, N Huesken¹⁶, T Hussain⁴⁰, W Ikegami Andersson⁴¹, W Imoehl³⁵, M Irshad^{7

8}, Q Ji¹, Q P Ji³⁷, X B Ji^{1

18}, X L Ji^{1

7}, H L Jiang³⁹, X S Jiang^{1

7

18}, X Y Jiang²³, J B Jiao³⁹, Z Jiao⁴², D P Jin^{1

7

18}, S Jin²¹, Y Jin⁴³, T Johansson⁴¹, N Kalantar-Nayestanaki⁴⁴, X S Kang²⁵, R Kappert⁴⁴, M Kavatsyuk⁴⁴, B C Ke¹, I K Keshk⁴, T Khan^{7

8}, A Khoukaz¹⁶, P Kiese¹⁵, R Kiuchi¹, R Kliemt³², L Koch⁴⁵, O B Kolcu¹⁹, B Kopf⁴, M Kuemmel⁴, M Kuessner⁴, A Kupsc⁴¹, M Kurth¹, M G Kurth^{1

18}, W Kühn⁴⁵, J S Lange⁴⁵, P Larin³, L Lavezzi⁶, H Leithoff¹⁵, T Lenz¹⁵, C Li⁴¹, Cheng Li^{7

8}, D M Li²⁶, F Li^{1

7}, F Y Li¹², G Li¹, H B Li^{1

18}, H J Li⁴⁶, J C Li¹, J W Li⁴⁷, Ke Li¹, L K Li¹, Lei Li⁴⁸, P L Li^{7

8}, P R Li⁴⁹, Q Y Li³⁹, W D Li^{1

18}, W G Li¹, X H Li^{7

8}, X L Li³⁹, X N Li^{1

7}, X Q Li²³, Z B Li⁵⁰, H Liang^{1

18}, H Liang^{7

8}, Y F Liang⁵¹, Y T Liang⁴⁵, G R Liao⁵², L Z Liao^{1

18}, J Libby⁵³, C X Lin⁵⁰, D X Lin³, Y J Lin³⁴, B Liu²⁴, B J Liu¹, C X Liu¹, D Liu^{7

8}, D Y Liu²⁴, F H Liu⁵⁴, Fang Liu¹, Feng Liu²⁰, H B Liu³⁴, H M Liu^{1

18}, Huanhuan Liu¹, Huihui Liu⁵⁵, J B Liu^{7

8}, J Y Liu^{1

18}, K Y Liu²⁵, Ke Liu²⁰, Q Liu¹⁸, S B Liu^{7

8}, T Liu^{1

18}, X Liu⁴⁹, X Y Liu^{1

18}, Y B Liu²³, Z A Liu^{1

7

18}, Zhiqing Liu¹⁵, Y F Long¹², X C Lou^{1

7

18}, H J Lu⁴², J D Lu^{1

18}, J G Lu^{1

7}, Y Lu¹, Y P Lu^{1

7}, C L Luo³⁶, M X Luo⁵⁶, P W Luo⁵⁰, T Luo⁴⁶, X L Luo^{1

7}, S Lusso⁶, X R Lyu¹⁸, F C Ma²⁵, H L Ma¹, L L Ma³⁹, M M Ma^{1

18}, Q M Ma¹, X N Ma²³, X X Ma^{1

18}, X Y Ma^{1

7}, Y M Ma³⁹, F E Maas³, M Maggiora^{5

6}, S Maldaner¹⁵, Q A Malik⁴⁰, A Mangoni⁵⁷, Y J Mao¹², Z P Mao¹, S Marcello^{5

6}, Z X Meng⁴³, J G Messchendorp⁴⁴, G Mezzadri²², J Min^{1

7}, T J Min²¹, R E Mitchell³⁵, X H Mo^{1

7

18}, Y J Mo²⁰, C Morales Morales³, N Yu Muchnoi², H Muramatsu³¹, A Mustafa⁴, S Nakhoul³², Y Nefedov¹⁰, F Nerling³², I B Nikolaev², Z Ning^{1

7}, S Nisar⁵⁸, S L Niu^{1

7}, S L Olsen¹⁸, Q Ouyang^{1

7

18}, S Pacetti⁵⁷, Y Pan^{7

8}, M Papenbrock⁴¹, P Patteri¹¹, M Pelizaeus⁴, H P Peng^{7

8}, K Peters³², J Pettersson⁴¹, J L Ping³⁶, R G Ping^{1

18}, A Pitka⁴, R Poling³¹, V Prasad^{7

8}, M Qi²¹, T Y Qi³³, S Qian^{1

7}, C F Qiao¹⁸, N Qin¹⁷, X P Qin³⁴, X S Qin⁴, Z H Qin^{1

7}, J F Qiu¹, S Q Qu²³, K H Rashid⁴⁰, C F Redmer¹⁵, M Richter⁴, M Ripka¹⁵, A Rivetti⁶, M Rolo⁶, G Rong^{1

18}, Ch Rosner³, M Rump¹⁶, A Sarantsev¹⁰, M Savrié²⁸, K Schoenning⁴¹, W Shan⁵⁹, X Y Shan^{7

8}, M Shao^{7

8}, C P Shen³³, P X Shen²³, X Y Shen^{1

18}, H Y Sheng¹, X Shi^{1

7}, X D Shi^{7

8}, J J Song³⁹, Q Q Song^{7

8}, X Y Song¹, S Sosio^{5

6}, C Sowa⁴, S Spataro^{5

6}, F F Sui³⁹, G X Sun¹, J F Sun³⁷, L Sun¹⁷, S S Sun^{1

18}, X H Sun¹, Y J Sun^{7

8}, Y K Sun^{7

8}, Y Z Sun¹, Z J Sun^{1

7}, Z T Sun¹, Y T Tan^{7

8}, C J Tang⁵¹, G Y Tang¹, X Tang¹, V Thoren⁴¹, B Tsednee¹³, I Uman⁶⁰, B Wang¹, B L Wang¹⁸, C W Wang²¹, D Y Wang¹², H H Wang³⁹, K Wang^{1

7}, L L Wang¹, L S Wang¹, M Wang³⁹, M Z Wang¹², Meng Wang^{1

18}, P Wang¹, P L Wang¹, R M Wang⁶¹, W P Wang^{7

8}, X Wang¹², X F Wang¹, Y Wang^{7

8}, Y F Wang^{1

7

18}, Z Wang^{1

7}, Z G Wang^{1

7}, Z Y Wang¹, Zongyuan Wang^{1

18}, T Weber⁴, D H Wei⁵², P Weidenkaff¹⁵, H W Wen³⁶, S P Wen¹, U Wiedner⁴, M Wolke⁴¹, L H Wu¹, L J Wu^{1

18}, Z Wu^{1

7}, L Xia^{7

8}, Y Xia⁶², S Y Xiao¹, Y J Xiao^{1

18}, Z J Xiao³⁶, Y G Xie^{1

7}, Y H Xie²⁰, T Y Xing^{1

18}, X A Xiong^{1

18}, Q L Xiu^{1

7}, G F Xu¹, J J Xu²¹, L Xu¹, Q J Xu⁶³, W Xu^{1

18}, X P Xu⁴⁷, F Yan³⁰, L Yan^{5

6}, W B Yan^{7

8}, W C Yan³³, Y H Yan⁶², H J Yang²⁴, H X Yang¹, L Yang¹⁷, R X Yang^{7

8}, S L Yang^{1

18}, Y H Yang²¹, Y X Yang⁵², Yifan Yang^{1

18}, Z Q Yang⁶², M Ye^{1

7}, M H Ye⁶⁴, J H Yin¹, Z Y You⁵⁰, B X Yu^{1

7

18}, C X Yu²³, J S Yu⁶², C Z Yuan^{1

18}, X Q Yuan¹², Y Yuan¹, A Yuncu¹⁹, A A Zafar⁴⁰, Y Zeng⁶², B X Zhang¹, B Y Zhang^{1

7}, C C Zhang¹, D H Zhang¹, H H Zhang⁵⁰, H Y Zhang^{1

7}, J Zhang^{1

18}, J L Zhang⁶¹, J Q Zhang⁴, J W Zhang^{1

7

18}, J Y Zhang¹, J Z Zhang^{1

18}, K Zhang^{1

18}, L Zhang²⁷, S F Zhang²¹, T J Zhang²⁴, X Y Zhang³⁹, Y Zhang^{7

8}, Y H Zhang^{1

7}, Y T Zhang^{7

8}, Yang Zhang¹, Yao Zhang¹, Yu Zhang¹⁸, Z H Zhang²⁰, Z P Zhang⁸, Z Y Zhang¹⁷, G Zhao¹, J W Zhao^{1

7}, J Y Zhao^{1

18}, J Z Zhao^{1

7}, Lei Zhao^{7

8}, Ling Zhao¹, M G Zhao²³, Q Zhao¹, S J Zhao²⁶, T C Zhao¹, Y B Zhao^{1

7}, Z G Zhao^{7

8}, A Zhemchugov¹⁰, B Zheng³⁰, J P Zheng^{1

7}, Y Zheng¹², Y H Zheng¹⁸, B Zhong³⁶, L Zhou^{1

7}, L P Zhou^{1

18}, Q Zhou^{1

18}, X Zhou¹⁷, X K Zhou¹⁸, X R Zhou^{7

8}, Xiaoyu Zhou⁶², Xu Zhou⁶², A N Zhu^{1

18}, J Zhu²³, J Zhu⁵⁰, K Zhu¹, K J Zhu^{1

7

18}, S H Zhu⁶⁵, W J Zhu²³, X L Zhu²⁷, Y C Zhu^{7

8}, Y S Zhu^{1

18}, Z A Zhu^{1

18}, J Zhuang^{1

7}, B S Zou¹, J H Zou¹; BESIII Collaboration

Affiliations

¹ Institute of High Energy Physics, Beijing 100049, People's Republic of China.
² G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.
³ Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
⁴ Bochum Ruhr-University, D-44780 Bochum, Germany.
⁵ University of Turin, I-10125, Turin, Italy.
⁶ INFN, I-10125, Turin, Italy.
⁷ State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.
⁸ University of Science and Technology of China, Hefei 230026, People's Republic of China.
⁹ Southeast University, Nanjing 211100, People's Republic of China.
¹⁰ Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia.
¹¹ INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy.
¹² Peking University, Beijing 100871, People's Republic of China.
¹³ Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar 13330, Mongolia.
¹⁴ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
¹⁵ Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
¹⁶ University of Muenster, Wilhelm-Klemm-Strasse 9, 48149 Muenster, Germany.
¹⁷ Wuhan University, Wuhan 430072, People's Republic of China.
¹⁸ University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
¹⁹ Istanbul Bilgi University, 34060 Eyup, Istanbul, Turkey.
²⁰ Central China Normal University, Wuhan 430079, People's Republic of China.
²¹ Nanjing University, Nanjing 210093, People's Republic of China.
²² INFN Sezione di Ferrara, I-44122, Ferrara, Italy.
²³ Nankai University, Tianjin 300071, People's Republic of China.
²⁴ Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
²⁵ Liaoning University, Shenyang 110036, People's Republic of China.
²⁶ Zhengzhou University, Zhengzhou 450001, People's Republic of China.
²⁷ Tsinghua University, Beijing 100084, People's Republic of China.
²⁸ University of Ferrara, I-44122, Ferrara, Italy.
²⁹ University of Eastern Piedmont, I-15121, Alessandria, Italy.
³⁰ University of South China, Hengyang 421001, People's Republic of China.
³¹ University of Minnesota, Minneapolis, Minnesota 55455, USA.
³² GSI Helmholtzcentre for Heavy Ion Research GmbH, D-64291 Darmstadt, Germany.
³³ Beihang University, Beijing 100191, People's Republic of China.
³⁴ Guangxi University, Nanning 530004, People's Republic of China.
³⁵ Indiana University, Bloomington, Indiana 47405, USA.
³⁶ Nanjing Normal University, Nanjing 210023, People's Republic of China.
³⁷ Henan Normal University, Xinxiang 453007, People's Republic of China.
³⁸ University of Hawaii, Honolulu, Hawaii 96822, USA.
³⁹ Shandong University, Jinan 250100, People's Republic of China.
⁴⁰ University of the Punjab, Lahore-54590, Pakistan.
⁴¹ Uppsala University, P.O. Box 516, SE-75120 Uppsala, Sweden.
⁴² Huangshan College, Huangshan 245000, People's Republic of China.
⁴³ University of Jinan, Jinan 250022, People's Republic of China.
⁴⁴ KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands.
⁴⁵ Physikalisches Institut, Justus-Liebig-Universitaet Giessen, II, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany.
⁴⁶ Fudan University, Shanghai 200443, People's Republic of China.
⁴⁷ Soochow University, Suzhou 215006, People's Republic of China.
⁴⁸ Beijing Institute of Petrochemical Technology, Beijing 102617, People's Republic of China.
⁴⁹ Lanzhou University, Lanzhou 730000, People's Republic of China.
⁵⁰ Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
⁵¹ Sichuan University, Chengdu 610064, People's Republic of China.
⁵² Guangxi Normal University, Guilin 541004, People's Republic of China.
⁵³ Indian Institute of Technology Madras, Chennai 600036, India.
⁵⁴ Shanxi University, Taiyuan 030006, People's Republic of China.
⁵⁵ Henan University of Science and Technology, Luoyang 471003, People's Republic of China.
⁵⁶ Zhejiang University, Hangzhou 310027, People's Republic of China.
⁵⁷ INFN and University of Perugia, I-06100, Perugia, Italy.
⁵⁸ Lahore Campus, COMSATS University Islamabad, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan.
⁵⁹ Hunan Normal University, Changsha 410081, People's Republic of China.
⁶⁰ Near East University, Nicosia, North Cyprus, Mersin 10, Turkey.
⁶¹ Xinyang Normal University, Xinyang 464000, People's Republic of China.
⁶² Hunan University, Changsha 410082, People's Republic of China.
⁶³ Hangzhou Normal University, Hangzhou 310036, People's Republic of China.
⁶⁴ China Center of Advanced Science and Technology, Beijing 100190, People's Republic of China.
⁶⁵ University of Science and Technology Liaoning, Anshan 114051, People's Republic of China.

PMID: 31172749
DOI: 10.1103/PhysRevLett.122.202001

Free article

Observation of the Decay X(3872)→π^{0}χ_{c1}(1P)

M Ablikim et al. Phys Rev Lett. 2019.

Free article

. 2019 May 24;122(20):202001.

doi: 10.1103/PhysRevLett.122.202001.

Authors

Affiliations

¹ Institute of High Energy Physics, Beijing 100049, People's Republic of China.
² G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia.
³ Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
⁴ Bochum Ruhr-University, D-44780 Bochum, Germany.
⁵ University of Turin, I-10125, Turin, Italy.
⁶ INFN, I-10125, Turin, Italy.
⁷ State Key Laboratory of Particle Detection and Electronics, Beijing 100049, Hefei 230026, People's Republic of China.
⁸ University of Science and Technology of China, Hefei 230026, People's Republic of China.
⁹ Southeast University, Nanjing 211100, People's Republic of China.
¹⁰ Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region, Russia.
¹¹ INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy.
¹² Peking University, Beijing 100871, People's Republic of China.
¹³ Institute of Physics and Technology, Peace Avenue 54B, Ulaanbaatar 13330, Mongolia.
¹⁴ Carnegie Mellon University, Pittsburgh, Pennsylvania 15213, USA.
¹⁵ Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany.
¹⁶ University of Muenster, Wilhelm-Klemm-Strasse 9, 48149 Muenster, Germany.
¹⁷ Wuhan University, Wuhan 430072, People's Republic of China.
¹⁸ University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China.
¹⁹ Istanbul Bilgi University, 34060 Eyup, Istanbul, Turkey.
²⁰ Central China Normal University, Wuhan 430079, People's Republic of China.
²¹ Nanjing University, Nanjing 210093, People's Republic of China.
²² INFN Sezione di Ferrara, I-44122, Ferrara, Italy.
²³ Nankai University, Tianjin 300071, People's Republic of China.
²⁴ Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
²⁵ Liaoning University, Shenyang 110036, People's Republic of China.
²⁶ Zhengzhou University, Zhengzhou 450001, People's Republic of China.
²⁷ Tsinghua University, Beijing 100084, People's Republic of China.
²⁸ University of Ferrara, I-44122, Ferrara, Italy.
²⁹ University of Eastern Piedmont, I-15121, Alessandria, Italy.
³⁰ University of South China, Hengyang 421001, People's Republic of China.
³¹ University of Minnesota, Minneapolis, Minnesota 55455, USA.
³² GSI Helmholtzcentre for Heavy Ion Research GmbH, D-64291 Darmstadt, Germany.
³³ Beihang University, Beijing 100191, People's Republic of China.
³⁴ Guangxi University, Nanning 530004, People's Republic of China.
³⁵ Indiana University, Bloomington, Indiana 47405, USA.
³⁶ Nanjing Normal University, Nanjing 210023, People's Republic of China.
³⁷ Henan Normal University, Xinxiang 453007, People's Republic of China.
³⁸ University of Hawaii, Honolulu, Hawaii 96822, USA.
³⁹ Shandong University, Jinan 250100, People's Republic of China.
⁴⁰ University of the Punjab, Lahore-54590, Pakistan.
⁴¹ Uppsala University, P.O. Box 516, SE-75120 Uppsala, Sweden.
⁴² Huangshan College, Huangshan 245000, People's Republic of China.
⁴³ University of Jinan, Jinan 250022, People's Republic of China.
⁴⁴ KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands.
⁴⁵ Physikalisches Institut, Justus-Liebig-Universitaet Giessen, II, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany.
⁴⁶ Fudan University, Shanghai 200443, People's Republic of China.
⁴⁷ Soochow University, Suzhou 215006, People's Republic of China.
⁴⁸ Beijing Institute of Petrochemical Technology, Beijing 102617, People's Republic of China.
⁴⁹ Lanzhou University, Lanzhou 730000, People's Republic of China.
⁵⁰ Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
⁵¹ Sichuan University, Chengdu 610064, People's Republic of China.
⁵² Guangxi Normal University, Guilin 541004, People's Republic of China.
⁵³ Indian Institute of Technology Madras, Chennai 600036, India.
⁵⁴ Shanxi University, Taiyuan 030006, People's Republic of China.
⁵⁵ Henan University of Science and Technology, Luoyang 471003, People's Republic of China.
⁵⁶ Zhejiang University, Hangzhou 310027, People's Republic of China.
⁵⁷ INFN and University of Perugia, I-06100, Perugia, Italy.
⁵⁸ Lahore Campus, COMSATS University Islamabad, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan.
⁵⁹ Hunan Normal University, Changsha 410081, People's Republic of China.
⁶⁰ Near East University, Nicosia, North Cyprus, Mersin 10, Turkey.
⁶¹ Xinyang Normal University, Xinyang 464000, People's Republic of China.
⁶² Hunan University, Changsha 410082, People's Republic of China.
⁶³ Hangzhou Normal University, Hangzhou 310036, People's Republic of China.
⁶⁴ China Center of Advanced Science and Technology, Beijing 100190, People's Republic of China.
⁶⁵ University of Science and Technology Liaoning, Anshan 114051, People's Republic of China.

PMID: 31172749
DOI: 10.1103/PhysRevLett.122.202001

Abstract

Using a total of 9.0 fb^{-1} of e^{+}e^{-} collision data with center-of-mass energies between 4.15 and 4.30 GeV collected by the BESIII detector, we search for the processes e^{+}e^{-}→γX(3872) with X(3872)→π^{0}χ_{cJ} for J=0, 1, 2. We report the first observation of X(3872)→π^{0}χ_{c1}, a new decay mode of the X(3872), with a statistical significance of more than 5σ for all systematic fit variations. Normalizing to the previously established process e^{+}e^{-}→γX(3872) with X(3872)→π^{+}π^{-}J/ψ, we find B(X(3872)→π^{0}χ_{c1})/B(X(3872)→π^{+}π^{-}J/ψ)=0.88_{-0.27}^{+0.33}±0.10, where the first error is statistical and the second is systematic. We set 90% confidence level upper limits on the corresponding ratios for the decays to π^{0}χ_{c0} and π^{0}χ_{c2} of 19 and 1.1, respectively.

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Observation of the Decay X(3872)→π^{0}χ_{c1}(1P)

Affiliations

Observation of the Decay X(3872)→π^{0}χ_{c1}(1P)

Authors

Affiliations

Abstract

LinkOut - more resources

Full Text Sources

Research Materials

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