Observation of a new charged charmoniumlike state in B -> J/psi K pi decays

Belle Collaboration: K. Chilikin , R. Mizuk , I. Adachi , H. Aihara , S. Al Said , K. Arinstein , D. M. Asner , V. Aulchenko

show 156 more authors

T. Aushev R. Ayad T. Aziz A. M. Bakich V. Bansal A. Bondar G. Bonvicini A. Bozek M. Bra\v{c}ko T. E. Browder D. \v{C}ervenkov V. Chekelian A. Chen B. G. Cheon R. Chistov K. Cho V. Chobanova S.-K. Choi Y. Choi D. Cinabro M. Danilov Z. Dole\v{z}al Z. Dr\'asal A. Drutskoy K. Dutta S. Eidelman D. Epifanov H. Farhat J. E. Fast T. Ferber O. Frost V. Gaur N. Gabyshev S. Ganguly A. Garmash R. Gillard Y. M. Goh B. Golob O. Grzymkowska J. Haba T. Hara K. Hayasaka H. Hayashii X. H. He W.-S. Hou M. Huschle H. J. Hyun A. Ishikawa R. Itoh Y. Iwasaki I. Jaegle K. K. Joo T. Julius T. Kawasaki C. Kiesling D. Y. Kim H. J. Kim J. H. Kim M. J. Kim Y. J. Kim K. Kinoshita B. R. Ko S. Korpar P. Kri\v{z}an P. Krokovny T. Kuhr A. Kuzmin Y.-J. Kwon J. S. Lange Y. Li L. Li Gioi J. Libby Y. Liu D. Liventsev P. Lukin K. Miyabayashi H. Miyata G. B. Mohanty A. Moll T. Mori R. Mussa E. Nakano M. Nakao T. Nanut Z. Natkaniec E. Nedelkovska N. K. Nisar S. Nishida S. Ogawa S. Okuno S. L. Olsen P. Pakhlov G. Pakhlova C. W. Park H. Park T. K. Pedlar M. Petri\v{c} L. E. Piilonen E. Ribe\v{z}l M. Ritter A. Rostomyan Y. Sakai S. Sandilya L. Santelj T. Sanuki Y. Sato V. Savinov O. Schneider G. Schnell C. Schwanda O. Seon V. Shebalin C. P. Shen T.-A. Shibata J.-G. Shiu B. Shwartz A. Sibidanov F. Simon Y.-S. Sohn A. Sokolov E. Solovieva M. Stari\v{c} M. Steder K. Sumisawa T. Sumiyoshi U. Tamponi K. Tanida G. Tatishvili Y. Teramoto F. Thorne K. Trabelsi M. Uchida S. Uehara T. Uglov Y. Unno S. Uno P. Urquijo C. Van Hulse P. Vanhoefer G. Varner A. Vinokurova M. N. Wagner C. H. Wang M.-Z. Wang P. Wang X. L. Wang Y. Watanabe S. Wehle K. M. Williams E. Won J. Yamaoka S. Yashchenko Z. P. Zhang V. Zhilich V. Zhulanov A. Zupanc

Authors on Pith no claims yet

classification ✦ hep-ex

keywords analysischargedcharmoniumlikedecaysstateadditionamplitudeanti-b0

0 comments

read the original abstract

We present the results of an amplitude analysis of anti-B0 -> J/psi K- pi+ decays. A new charged charmoniumlike state Zc(4200)+ decaying to J/psi pi+ is observed with a significance of 6.2 sigma. The mass and width of the Zc(4200)+ are 4196 +31-29 +17-13 MeV/c^2 and 370 +70-70 +70-132 MeV, respectively; the preferred assignment of the quantum numbers is J^P = 1^+. In addition, we find evidence for Zc(4430)+ -> J/psi pi+. The analysis is based on a 711 fb^-1 data sample collected by the Belle detector at the asymmetric-energy e+ e- collider KEKB.

This paper has not been read by Pith yet.

discussion (0)

Forward citations

Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

Open-flavor threshold effects on quarkonium spectrum in the BOEFT
hep-ph 2026-04 unverdicted novelty 7.0

BOEFT quantifies threshold-induced shifts in quarkonium masses below threshold by solving coupled Schrödinger equations using lattice potentials and one parameter fixed to the χ_c1(3872) mass.