Observation of an alternative ?c0(2P) candidate in e+e??J/?DD�

Chilikin K.; Adachi I.; Aihara H.; Al Said S.; Asner D.M.; Aulchenko V.; Ayad R.; Babu V.; Badhrees I.; Bakich A.M.; Bansal V.; Barberio E.; Besson D.; Bhardwaj V.; Bhuyan B.; Biswal J.; Bobrov A.; Bondar A.; Bozek A.; Bra?ko M.; Browder T.E.; ?ervenkov D.; Chekelian V.; Chen A.; Cheon B.G.; Cho K.; Choi Y.; Cinabro D.; Dash N.; Di Carlo S.; Dole�al Z.; Dr�sal Z.; Dutta D.; Eidelman S.; Farhat H.; Fast J.E.; Ferber T.; Fulsom B.G.; Gaur V.; Gabyshev N.; Garmash A.; Gillard R.; Goldenzweig P.; Haba J.; Hara T.; Hayasaka K.; Hou W.-S.; Inami K.; Ishikawa A.; Itoh R.; Iwasaki Y.; Jacobs W.W.; Jaegle I.; Jeon H.B.; Jin Y.; Joffe D.; Joo K.K.; Julius T.; Kang K.H.; Karyan G.; Katrenko P.; Kim D.Y.; Kim H.J.; Kim J.B.; Kim K.T.; Kim M.J.; Kim S.H.; Kim Y.J.; Kinoshita K.; Kody� P.; Korpar S.; Kotchetkov D.; Kri�an P.; Krokovny P.; Kuhr T.; Kulasiri R.; Kuzmin A.; Kwon Y.-J.; Lange J.S.; Li L.; Li Gioi L.; Libby J.; Liventsev D.; Lubej M.; Luo T.; Masuda M.; Matsuda T.; Matvienko D.; Miyabayashi K.; Miyata H.; Mizuk R.; Mohanty G.B.; Moon H.K.; Mori T.; Mussa R.; Nakano E.; Nakao M.; Nanut T.; Nath K.J.; Natkaniec Z.; Nayak M.; Niiyama M.; Nisar N.K.; Nishida S.; Ogawa S.; Okuno S.; Olsen S.L.; Ono H.; Pakhlov P.; Pakhlova G.; Pal B.; Pardi S.; Park H.; Paul S.; Pestotnik R.; Piilonen L.E.; Pulvermacher C.; Ritter M.; Sahoo H.; Sakai Y.; Salehi M.; Sandilya S.; Santelj L.; Sanuki T.; Schneider O.; Schnell G.; Schwanda C.; Seino Y.; Senyo K.; Seon O.; Sevior M.E.; Shebalin V.; Shen C.P.; Shibata T.-A.; Shiu J.-G.; Sokolov A.; Solovieva E.; Stari? M.; Sumiyoshi T.; Takizawa M.; Tamponi U.; Tanida K.; Tenchini F.; Trabelsi K.; Uchida M.; Uehara S.; Uglov T.; Uno S.; Usov Y.; Van Hulse C.; Varner G.; Vinokurova A.; Vossen A.; Wang C.H.; Wang M.-Z.; Wang P.; Watanabe M.; Watanabe Y.; Widmann E.; Won E.; Yamamoto H.; Yamashita Y.; Ye H.; Yuan C.Z.; Yusa Y.; Zhang Z.P.; Zhilich V.; Zhulanov V.; Zupanc A.; (Belle Collaboration)

Observation of an alternative ?c0(2P) candidate in e+e??J/?DD�

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2017

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We perform a full amplitude analysis of the process e+e-?J/?DD, where D refers to either D0 or D+. A new charmoniumlike state X?(3860) that decays to DD is observed with a significance of 6.5?. Its mass is (3862-32+26 -13+40) MeV/c2, and its width is (201-67+154 -82+88) MeV. The JPC=0++ hypothesis is favored over the 2++ hypothesis at the level of 2.5?. The analysis is based on the 980 fb-1 data sample collected by the Belle detector at the asymmetric-energy e+e- collider KEKB. � 2017 American Physical Society.

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32

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http://dx.doi.org/10.1103/PhysRevD.95.112003
https://idr.iitbbs.ac.in/handle/2008/1454

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Observation of an alternative ?c0(2P) candidate in e+e??J/?DD�

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