Observation of Two Charged Bottomoniumlike Resonances in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>Υ</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mn>5</mml:mn><mml:mi>S</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:math>Decays
A. BondarBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090A. GarmashBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090R. MizukInstitute for Theoretical and Experimental Physics, MoscowD. SantelUniversity of Cincinnati, Cincinnati, Ohio 45221K. KinoshitaUniversity of Cincinnati, Cincinnati, Ohio 45221I. AdachiHigh Energy Accelerator Research Organization (KEK), TsukubaH. AiharaDepartment of Physics, University of Tokyo, TokyoK. ArinsteinBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090D. M. AsnerPacific Northwest National Laboratory, Richland, Washington 99352Tagir AushevInstitute for Theoretical and Experimental Physics, MoscowT. AzizTata Institute of Fundamental Research, MumbaiA. M. BakichSchool of Physics, University of Sydney, New South Wales 2006E. L. BarberioUniversity of Melbourne, School of Physics, Victoria 3010K. BelousInstitute of High Energy Physics, ProtvinoV. BhardwajPanjab University, ChandigarhM. BischofbergerNara Women’s University, NaraA. BożekH. Niewodniczanski Institute of Nuclear Physics, KrakowM. BračkoJ. Stefan Institute, LjubljanaT. E. BrowderUniversity of Hawaii, Honolulu, Hawaii 96822M.-C. ChangDepartment of Physics, Fu Jen Catholic University, TaipeiP. ChangDepartment of Physics, National Taiwan University, TaipeiA. ChenNational Central University, Chung-liB. G. CheonHanyang University, SeoulK. ChilikinInstitute for Theoretical and Experimental Physics, MoscowR. ChistovInstitute for Theoretical and Experimental Physics, MoscowI.-S. ChoYonsei University, SeoulK. ChoKorea Institute of Science and Technology Information, DaejeonS.-K. ChoiGyeongsang National University, ChinjuY. ChoiSungkyunkwan University, SuwonJ. DalsenoExcellence Cluster Universe, Technische Universität München, GarchingM. DanilovInstitute for Theoretical and Experimental Physics, MoscowZ. DoležalFaculty of Mathematics and Physics, Charles University, PragueA. DrutskoyInstitute for Theoretical and Experimental Physics, MoscowS. EidelmanBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090D. EpifanovBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090J. FastPacific Northwest National Laboratory, Richland, Washington 99352V. GaurTata Institute of Fundamental Research, MumbaiN. GabyshevBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090Y. M. GohHanyang University, SeoulB. GolobFaculty of Mathematics and Physics, University of Ljubljana, LjubljanaJ. HabaHigh Energy Accelerator Research Organization (KEK), TsukubaT. HaraHigh Energy Accelerator Research Organization (KEK), TsukubaK. HayasakaKobayashi-Maskawa Institute, Nagoya University, NagoyaY. HoshiTohoku Gakuin University, TagajoH. J. HyunKyungpook National University, TaeguT. IijimaGraduate School of Science, Nagoya University, NagoyaK. InamiGraduate School of Science, Nagoya University, NagoyaA. IshikawaTohoku University, SendaiM. IwabuchiYonsei University, SeoulY. IwasakiHigh Energy Accelerator Research Organization (KEK), TsukubaT. IwashitaNara Women’s University, NaraT. JuliusUniversity of Melbourne, School of Physics, Victoria 3010J. H. KangYonsei University, SeoulT. KawasakiNiigata University, NiigataH. KichimiHigh Energy Accelerator Research Organization (KEK), TsukubaC. KieslingMax-Planck-Institut für Physik, MünchenJ. B. KimKorea Institute of Science and Technology Information, DaejeonJ. H. KimKorea Institute of Science and Technology Information, DaejeonK. T. KimKorea University, SeoulM. J. KimKyungpook National University, TaeguYounghun KimKorea Institute of Science and Technology Information, DaejeonB. R. KoKorea University, SeoulN. KobayashiTokyo Institute of Technology, TokyoS. KoblitzMax-Planck-Institut für Physik, MünchenP. KodyšFaculty of Mathematics and Physics, Charles University, PragueS. KorparJ. Stefan Institute, LjubljanaP. KrižanFaculty of Mathematics and Physics, University of Ljubljana, LjubljanaT. KuhrInstitut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, KarlsruheR. KumarPanjab University, ChandigarhT. KumitaTokyo Metropolitan University, TokyoA. KuzminBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090J. S. LangeJustus-Liebig-Universität Gießen, GießenSoohyung LeeKorea University, SeoulJ. LiSeoul National University, SeoulY. LiCNP, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061J. LibbyIndian Institute of Technology Madras, MadrasC. LiuUniversity of Science and Technology of China, HefeiZ. Q. LiuInstitute of High Energy Physics, Chinese Academy of Sciences, BeijingD. LiventsevInstitute for Theoretical and Experimental Physics, MoscowR. LouvotÉcole Polytechnique Fédérale de Lausanne (EPFL), LausanneD. MatvienkoBudker Institute of Nuclear Physics SB RAS and Novosibirsk State University, Novosibirsk 630090S. McOnieSchool of Physics, University of Sydney, New South Wales 2006H. MiyataNiigata University, NiigataY. MiyazakiGraduate School of Science, Nagoya University, NagoyaG. B. MohantyTata Institute of Fundamental Research, MumbaiA. MollTechnical University of MunichN. MuramatsuOsaka University, OsakaR. MussaINFN-Sezione di Torino, TorinoM. NakaoHigh Energy Accelerator Research Organization (KEK), TsukubaZ. NatkaniecH. Niewodniczanski Institute of Nuclear Physics, KrakowS. NeubauerInstitut für Experimentelle Kernphysik, Karlsruher Institut für Technologie, KarlsruheM. NiiyamaKyoto University, KyotoS. NishidaHigh Energy Accelerator Research Organization (KEK), TsukubaK. NishimuraUniversity of Hawaii, Honolulu, Hawaii 96822O. NitohTokyo University of Agriculture and Technology, TokyoT. NozakiHigh Energy Accelerator Research Organization (KEK), TsukubaS. L. OlsenSeoul National University, SeoulY. OnukiTohoku University, SendaiP. PakhlovInstitute for Theoretical and Experimental Physics, MoscowG. PakhlovaInstitute for Theoretical and Experimental Physics, Moscow
2012lv
ABI
Аннотация
We report the observation of two narrow structures in the mass spectra of the ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}\ensuremath{\Upsilon}(nS)$ ($n=1$, 2, 3) and ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}{h}_{b}(mP)$ ($m=1$, 2) pairs that are produced in association with a single charged pion in $\ensuremath{\Upsilon}(5S)$ decays. The measured masses and widths of the two structures averaged over the five final states are ${M}_{1}=(10\text{ }607.2\ifmmode\pm\else\textpm\fi{}2.0)\text{ }\text{ }\mathrm{MeV}/{c}^{2}$, ${\ensuremath{\Gamma}}_{1}=(18.4\ifmmode\pm\else\textpm\fi{}2.4)\text{ }\text{ }\mathrm{MeV}$, and ${M}_{2}=(10\text{ }652.2\ifmmode\pm\else\textpm\fi{}1.5)\text{ }\text{ }\mathrm{MeV}/{c}^{2}$, ${\ensuremath{\Gamma}}_{2}=(11.5\ifmmode\pm\else\textpm\fi{}2.2)\text{ }\text{ }\mathrm{MeV}$. The results are obtained with a $121.4\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample collected with the Belle detector in the vicinity of the $\ensuremath{\Upsilon}(5S)$ resonance at the KEKB asymmetric-energy ${e}^{+}{e}^{\ensuremath{-}}$ collider.
Перевод пока недоступен
Идентификаторы
Цитирования и источники
Цитирований: 3Использованных источников: 0