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

preprint2013arXivOpen access
Belle CollaborationK. ChilikinR. MizukI. AdachiH. AiharaK. ArinsteinD. M. AsnerV. AulchenkoT. AushevT. AzizA. M. BakichA. BalaV. BhardwajB. BhuyanA. BondarG. BonviciniA. BozekM. BračkoJ. BrodzickaT. E. BrowderV. ChekelianA. ChenP. ChenB. G. CheonR. ChistovI. -S. ChoK. ChoV. ChobanovaS. -K. ChoiY. ChoiD. CinabroJ. DalsenoM. DanilovZ. DoležalD. DuttaS. EidelmanD. EpifanovH. FarhatJ. E. FastT. FerberA. FreyV. GaurN. GabyshevS. GangulyR. GillardY. M. GohB. GolobJ. HabaT. HaraK. HayasakaH. HayashiiY. HoriiY. HoshiW. -S. HouH. J. HyunT. IijimaA. IshikawaR. ItohY. IwasakiT. JuliusD. H. KahJ. H. KangE. KatoT. KawasakiH. KichimiC. KieslingD. Y. KimH. J. KimJ. B. KimJ. H. KimK. T. KimY. J. KimK. KinoshitaJ. KlucarB. R. KoP. KodyšS. KorparP. KrižanP. KrokovnyT. KumitaA. KuzminY. -J. KwonJ. S. LangeS. -H. LeeJ. LiY. LiJ. LibbyC. LiuY. LiuD. LiventsevP. LukinJ. MacNaughtonD. MatvienkoK. MiyabayashiH. MiyataG. B. MohantyA. MollT. MoriN. MuramatsuR. MussaE. NakanoM. NakaoZ. NatkaniecM. NayakE. NedelkovskaC. NgN. K. NisarS. NishidaO. NitohS. OgawaS. OkunoS. L. OlsenC. OswaldP. PakhlovG. PakhlovaC. W. ParkH. ParkH. K. ParkT. K. PedlarR. PestotnikM. PetričL. E. PiilonenM. RitterM. RöhrkenA. RostomyanH. SahooT. SaitoK. SakaiY. SakaiS. SandilyaD. SantelL. SanteljT. SanukiV. SavinovO. SchneiderG. SchnellC. SchwandaD. SemmlerK. SenyoO. SeonM. E. SeviorM. ShapkinC. P. ShenT. -A. ShibataJ. -G. ShiuA. SibidanovF. SimonY. -S. SohnA. SokolovE. SolovievaM. StaričM. StederM. SumihamaT. SumiyoshiU. TamponiK. TanidaG. TatishviliY. TeramotoK. TrabelsiM. UchidaS. UeharaY. UnnoS. UnoP. UrquijoY. UsovS. E. VahsenC. Van HulseP. VanhoeferG. VarnerK. E. VarvellA. VinokurovaV. VorobyevM. N. WagnerC. H. WangM. -Z. WangP. WangX. L. WangM. WatanabeY. WatanabeK. M. WilliamsE. WonB. D. YabsleyH. YamamotoY. YamashitaS. YashchenkoY. YookY. YusaZ. P. ZhangV. ZhilichV. ZhulanovA. Zupanc

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.

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