Experimental constraints on the spin and parity of the Z(4430)+

Belle Collaboration: K. Chilikin , R. Mizuk , I. Adachi , H. Aihara , K. Arinstein , D. M. Asner , V. Aulchenko , T. Aushev

show 182 more authors

T. Aziz A. M. Bakich A. Bala V. Bhardwaj B. Bhuyan A. Bondar G. Bonvicini A. Bozek M. Bra\v{c}ko J. Brodzicka T. E. Browder V. Chekelian A. Chen P. Chen B. G. Cheon R. Chistov I.-S. Cho K. Cho V. Chobanova S.-K. Choi Y. Choi D. Cinabro J. Dalseno M. Danilov Z. Dole\v{z}al D. Dutta S. Eidelman D. Epifanov H. Farhat J. E. Fast T. Ferber A. Frey V. Gaur N. Gabyshev S. Ganguly R. Gillard Y. M. Goh B. Golob J. Haba T. Hara K. Hayasaka H. Hayashii Y. Horii Y. Hoshi W.-S. Hou H. J. Hyun T. Iijima A. Ishikawa R. Itoh Y. Iwasaki T. Julius D. H. Kah J. H. Kang E. Kato T. Kawasaki H. Kichimi C. Kiesling D. Y. Kim H. J. Kim J. B. Kim J. H. Kim K. T. Kim Y. J. Kim K. Kinoshita J. Klucar B. R. Ko P. Kody\v{s} S. Korpar P. Kri\v{z}an P. Krokovny T. Kumita A. Kuzmin Y.-J. Kwon J. S. Lange S.-H. Lee J. Li Y. Li J. Libby C. Liu Y. Liu D. Liventsev P. Lukin J. MacNaughton D. Matvienko K. Miyabayashi H. Miyata G. B. Mohanty A. Moll T. Mori N. Muramatsu R. Mussa E. Nakano M. Nakao Z. Natkaniec M. Nayak E. Nedelkovska C. Ng N. K. Nisar S. Nishida O. Nitoh S. Ogawa S. Okuno S. L. Olsen C. Oswald P. Pakhlov G. Pakhlova C. W. Park H. Park H. K. Park T. K. Pedlar R. Pestotnik M. Petri\v{c} L. E. Piilonen M. Ritter M. R\"ohrken A. Rostomyan H. Sahoo T. Saito K. Sakai Y. Sakai S. Sandilya D. Santel L. Santelj T. Sanuki V. Savinov O. Schneider G. Schnell C. Schwanda D. Semmler K. Senyo O. Seon M. E. Sevior M. Shapkin C. P. Shen T.-A. Shibata J.-G. Shiu A. Sibidanov F. Simon Y.-S. Sohn A. Sokolov E. Solovieva M. Stari\v{c} M. Steder M. Sumihama T. Sumiyoshi U. Tamponi K. Tanida G. Tatishvili Y. Teramoto K. Trabelsi M. Uchida S. Uehara Y. Unno S. Uno P. Urquijo Y. Usov S. E. Vahsen C. Van Hulse P. Vanhoefer G. Varner K. E. Varvell A. Vinokurova V. Vorobyev M. N. Wagner C. H. Wang M.-Z. Wang P. Wang X. L. Wang M. Watanabe Y. Watanabe K. M. Williams E. Won B. D. Yabsley H. Yamamoto Y. Yamashita S. Yashchenko Y. Yook Y. Yusa Z. P. Zhang V. Zhilich V. Zhulanov A. Zupanc

Authors on Pith no claims yet

classification ✦ hep-ex

keywords sigmaanalysisparityspinamplitudeasymmetric-energybellecollected

0 comments

read the original abstract

We perform a full amplitude analysis of B0 -> psi' K+ pi- decays, with psi' -> mu+ mu- or e+ e-, to constrain the spin and parity of the Z(4430)-. The J^P=1+ hypothesis is favored over the 0-, 1-, 2- and 2+ hypotheses at the levels of 3.4 sigma, 3.7 sigma, 4.7 sigma and 5.1 sigma, respectively. The analysis is based on a 711 fb^-1 data sample that contains 772x10^6 B B pairs, collected at the Y(4S) resonance 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.

Observation and investigation of the $T_{c\bar{c}1}(4430)^{+}$ structure in $B^{+} \to \psi(2S) K_{\text{S}}^{0} \pi^{+}$ decays
hep-ex 2025-11 accept novelty 5.0

First 4D amplitude analysis of B+ → ψ(2S) K_S0 π+ confirms the exotic T_{c c-bar 1}(4430)+ structure with properties consistent with prior observations in the isospin-related channel.