Study of e+ e- → π+ π- J/ψ and observation of a charged charmoniumlike state at Belle.

@article{Liu2013StudyOE,
  title={Study of e+ e- → π+ π- J/ψ and observation of a charged charmoniumlike state at Belle.},
  author={Z. Q. Liu and C. P. Shen and C. Z. Yuan and Iki Adachi and Hiroaki Aihara and D. M. Asner and V. M. Aulchenko and T. Aushev and Tariq Aziz and A. M. Bakich and A. Umesh Bala and Konstantin Belous and Vaishali Bhardwaj and Bubu Bhuyan and Margrit Bischofberger and Alexander Bondar and Giovanni Bonvicini and A. S. Bozek and Marko Bra{\vc}ko and Jolanta Brodzicka and T. E. Browder and Paoti Chang and Vladimir Chekelian and Albert C. Chen and P. H. Chen and B. G. Cheon and Ruslan Chistov and Kilwon Cho and Veronika Chobanova and S.-K. Choi and Y. K. Choi and David Cinabro and Jeremy Dalseno and Mikhail Danilov and Zdenek Dolezal and Z. Drasal and A. Drutskoy and Deepanwita Dutta and Kishore Dutta and Simon Eidelman and Dmitry Epifanov and Hamidullah Farhat and J. E. Fast and Michael Feindt and Torben Ferber and Axel Frey and Viksit Gaur and N. I. Gabyshev and Sc Ganguly and R. Gillard and Y. M. Goh and Bo{\vs}tjan Golob and Joanna Haba and Kazue Hayasaka and H. Hayashii and Y. Horii and Y. Hoshi and W.-S. Hou and Y. B. Hsiung and H. J. Hyun and Takanori Iijima and K. Inami and Akiyuki Ishikawa and Ryosuke Itoh and Y. Iwasaki and David Joffe and Tumwiine Julius and D. H. Kah and J. H. Kang and Takeshi Kawasaki and Ch. Kiesling and Heonki Kim and J. B. Kim and J. Kim and K. T. Kim and M. J. Kim and Y. J. Kim and Keisuke Kinoshita and J. Klucar and B. R. Ko and Peter Kody{\vs} and S. Korpar and P. Kri{\vz}an and Pavel Krokovny and Thomas Albert Kuhr and Y. -J. Kwon and J. S. Lange and Seunghoon Lee and Jin Li and Yichen Li and James Libby and Chunxiu Liu and P. A. Lukin and Dmitry Matvienko and Kazuki Miyabayashi and H. Miyata and Roman Mizuk and G. B. Mohanty and A. Moll and Roberto Mussa and Eiichiro Nakano and Michiyasu Nakao and Hideyuki Nakazawa and Z. Natkaniec and Manjushree Nayak and E. Nedelkovska and N. K. Nisar and S. Nishida and Osamu Nitoh and Satoru Ogawa and S. Okuno and S. L. Olsen and Yoshichika Ōnuki and Waclaw Ostrowicz and Cate Oswald and Pavel N. Pakhlov and Galina Pakhlova and H. K. Park and T. K. Pedlar and Rok Pestotnik and Marko Petri{\vc} and L. E. Piilonen and Markus Raimund Ritter and Markus Roehrken and Armine Rostomyan and H. Sahoo and To. Saito and Y. Sakai and Sathyakama Sandilya and Daniel Santel and T. Sanuki and Yoshiyasu Sato and Vladimir Savinov and Olivier Schneider and Gotz Schnell and Christoph Schwanda and R. Seidl and D. Semmler and Katsumi Senyo and O. Seon and M. E. Sevior and Mikhail Shapkin and T. -A. Shibata and J.-G. Shiu and Bernard Shwartz and A. L. Sibidanov and F. Simon and Peter Smerkol and Y. S. Sohn and Andrei Sokolov and Elena Solovieva and Marko Staric and Michael Steder and Mizuki Sumihama and T. Sumiyoshi and Umberto Tamponi and K. Tanida and G. Tatishvili and Y. Teramoto and Karim Trabelsi and T. Tsuboyama and M. Uchida and Satoshi Uehara and T. V. Uglov and Yasushi Un-no and Shigemichi Uno and S. E. Vahsen and C B Van Hulse and Pit Vanhoefer and Gary S. Varner and K. E. Varvell and Vitaly Vorobyev and M. N. Wagner and C. H. Wang and M.-Z. Wang and Ping Wang and X. T. Wang and Masamitsu Watanabe and Yoshiro Watanabe and E. Won and B. D. Yabsley and J. Yamaoka and Yoshimichi Yamashita and Sergey Yashchenko and Youngmin Yook and Yosuke Yusa and C. C. Zhang and Z. P. Zhang and V. N. Zhilich and Ana Zupanc},
  journal={Physical review letters},
  year={2013},
  volume={110 25},
  pages={
          252002
        }
}
  • Z. Q. Liu, C. P. Shen, +188 authors Ana Zupanc
  • Published 2013
  • Physics, Medicine
  • Physical review letters
  • The cross section for ee+ e- → π+ π- J/ψ between 3.8 and 5.5 GeV is measured with a 967  fb(-1) data sample collected by the Belle detector at or near the Υ(nS) (n = 1,2,…,5) resonances. The Y(4260) state is observed, and its resonance parameters are determined. In addition, an excess of π+ π- J/ψ production around 4 GeV is observed. This feature can be described by a Breit-Wigner parametrization with properties that are consistent with the Y(4008) state that was previously reported by Belle… CONTINUE READING

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