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arxiv: 1609.08749 · v1 · submitted 2016-09-28 · ✦ hep-ex

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Study of Two-Body e^+e^- to B_s^{(*)}bar{B}_s^{(*)} Production in the Energy Range from 10.77 to 11.02 GeV

A.Abdesselam , I.Adachi , K.Adamczyk , H.Aihara , S.Al Said , K.Arinstein , Y.Arita , D.M.Asner
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T.Aso H.Atmacan V.Aulchenko T.Aushev R.Ayad T.Aziz V.Babu I.Badhrees S.Bahinipati A.M.Bakich A.Bala Y.Ban V.Bansal E.Barberio M.Barrett W.Bartel A.Bay I.Bedny P.Behera M.Belhorn K.Belous M.Berger D.Besson V.Bhardwaj B.Bhuyan J.Biswal T.Bloomfield S.Blyth A.Bobrov A.Bondar G.Bonvicini C.Bookwalter C.Boulahouache A.Bozek M.Bracko F.Breibeck J.Brodzicka T.E.Browder E.Waheed D.Cervenkov M.-C.Chang P.Chang Y.Chao V.Chekelian A.Chen K.-F.Chen P.Chen B.G.Cheon K.Chilikin R.Chistov K.Cho V.Chobanova S.-K.Choi Y.Choi D.Cinabro J.Crnkovic J.Dalseno M.Danilov N.Dash S.DiCarlo J.Dingfelder Z.Dolezal D.Dossett Z.Drasal A.Drutskoy S.Dubey D.Dutta K.Dutta S.Eidelman D.Epifanov S.Esen H.Farhat J.E.Fast M.Feindt T.Ferber A.Frey O.Frost B.G.Fulsom V.Gaur N.Gabyshev S.Ganguly A.Garmash D.Getzkow R.Gillard F.Giordano R.Glattauer Y.M.Goh P.Goldenzweig B.Golob D.Greenwald M.Grosse Perdekamp J.Grygier O.Grzymkowska H.Guo J.Haba P.Hamer Y.L.Han K.Hara T.Hara Y.Hasegawa J.Hasenbusch K.Hayasaka H.Hayashii X.H.He M.Heck M.T.Hedges D.Heffernan M.Heider A.Heller T.Higuchi S.Himori S.Hirose T.Horiguchi Y.Hoshi K.Hoshina W.-S.Hou Y.B.Hsiung C.-L.Hsu M.Huschle H.J.Hyun Y.Igarashi T.Iijima M.Imamura K.Inami G.Inguglia A.Ishikawa K.Itagaki R.Itoh M.Iwabuchi M.Iwasaki Y.Iwasaki S.Iwata W.W.Jacobs I.Jaegle H.B.Jeon Y.Jin D.Joffe M.Jones K.K.Joo T.Julius H.Kakuno A.B.Kaliyar J.H.Kang K.H.Kang P.Kapusta S.U.Kataoka E.Kato Y.Kato P.Katrenko H.Kawai T.Kawasaki T.Keck H.Kichimi C.Kiesling B.H.Kim D.Y.Kim H.J.Kim H.-J.Kim J.B.Kim J.H.Kim K.T.Kim M.J.Kim S.H.Kim S.K.Kim Y.J.Kim K.Kinoshita C.Kleinwort J.Klucar B.R.Ko N.Kobayashi S.Koblitz P.Kodys Y.Koga S.Korpar D.Kotchetkov R.T.Kouzes P.Krizan P.Krokovny B.Kronenbitter T.Kuhr L.Kulasiri R.Kumar T.Kumita E.Kurihara Y.Kuroki A.Kuzmin P.Kvasnicka Y.-J.Kwon Y.-T.Lai J.S.Lange D.H.Lee I.S.Lee S.-H.Lee M.Leitgab R.Leitner D.Levit P.Lewis C.H.Li H.Li J.Li L.Li X.Li Y.Li L.Li Gioi J.Libby A.Limosani C.Liu Y.Liu Z.Q.Liu D.Liventsev A.Loos R.Louvot M.Lubej P.Lukin T.Luo J.MacNaughton M.Masuda T.Matsuda D.Matvienko A.Matyja S.McOnie Y.Mikami K.Miyabayashi Y.Miyachi H.Miyake H.Miyata Y.Miyazaki R.Mizuk G.B.Mohanty S.Mohanty D.Mohapatra A.Moll H.K.Moon T.Mori T.Morii H.-G.Moser T.Muller N.Muramatsu R.Mussa T.Nagamine Y.Nagasaka Y.Nakahama I.Nakamura K.R.Nakamura E.Nakano H.Nakano T.Nakano M.Nakao H.Nakayama H.Nakazawa T.Nanut K.J.Nath Z.Natkaniec M.Nayak E.Nedelkovska K.Negishi K.Neichi C.Ng C.Niebuhr M.Niiyama N.K.Nisar S.Nishida K.Nishimura O.Nitoh T.Nozaki A.Ogawa S.Ogawa T.Ohshima S.Okuno S.L.Olsen Y.Ono Y.Onuki W.Ostrowicz C.Oswald H.Ozaki P.Pakhlov G.Pakhlova B.Pal H.Palka E.Panzenbock C.-S.Park C.W.Park H.Park K.S.Park S.Paul L.S.Peak T.K.Pedlar T.Peng L.Pesantez R.Pestotnik M.Peters M.Petric L.E.Piilonen A.Poluektov K.Prasanth M.Prim K.Prothmann C.Pulvermacher M.V.Purohit J.Rauch B.Reisert E.Ribezl M.Ritter J.Rorie A.Rostomyan M.Rozanska S.Rummel S.Ryu H.Sahoo T.Saito K.Sakai Y.Sakai S.Sandilya D.Santel L.Santelj T.Sanuki J.Sasaki N.Sasao Y.Sato V.Savinov T.Schluter O.Schneider G.Schnell P.Schonmeier M.Schram C.Schwanda A.J.Schwartz B.Schwenker R.Seidl Y.Seino D.Semmler K.Senyo O.Seon I.S.Seong M.E.Sevior L.Shang M.Shapkin V.Shebalin C.P.Shen T.-A.Shibata H.Shibuya N.Shimizu S.Shinomiya J.-G.Shiu B.Shwartz A.Sibidanov F.Simon J.B.Singh R.Sinha P.Smerkol Y.-S.Sohn A.Sokolov Y.Soloviev E.Solovieva S.Stanic M.Staric M.Steder J.F.Strube J.Stypula S.Sugihara A.Sugiyama M.Sumihama K.Sumisawa T.Sumiyoshi K.Suzuki S.Suzuki S.Y.Suzuki Z.Suzuki H.Takeichi M.Takizawa U.Tamponi M.Tanaka S.Tanaka K.Tanida N.Taniguchi G.N.Taylor F.Tenchini Y.Teramoto I.Tikhomirov K.Trabelsi V.Trusov Y.F.Tse T.Tsuboyama M.Uchida T.Uchida S.Uehara K.Ueno T.Uglov Y.Unno S.Uno S.Uozumi P.Urquijo Y.Ushiroda Y.Usov S.E.Vahsen C.Van Hulse P.Vanhoefer G.Varner K.E.Varvell K.Vervink A.Vinokurova V.Vorobyev A.Vossen M.N.Wagner C.H.Wang J.Wang M.-Z.Wang P.Wang X.L.Wang M.Watanabe Y.Watanabe R.Wedd S.Wehle E.White E.Widmann J.Wiechczynski K.M.Williams E.Won B.D.Yabsley S.Yamada H.Yamamoto J.Yamaoka Y.Yamashita M.Yamauchi S.Yashchenko H.Ye J.Yelton Y.Yook C.Z.Yuan Y.Yusa C.C.Zhang L.M.Zhang Z.P.Zhang L.Zhao V.Zhilich V.Zhukova V.Zhulanov M.Ziegler T.Zivko A.Zupanc N.Zwahlen O.Zyukova
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keywords upsilonenergycollecteddatafinalpeakproductionrange
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We report results on the studies of the $e^+e^-\to B_s^{(*)}\bar{B}_s^{(*)}$ processes. The results are based on a $121.4$ fb$^{-1}$ data sample collected with the Belle detector at the center-of-mass energy near the $\Upsilon(10860)$ peak and $16.4$ fb$^{-1}$ of data collected at 19 energy points in the range from 10.77 to 11.02 GeV. We observe a clear $e^+e^-\to\Upsilon(10860)\to B_s^{(*)}\bar{B}_s^{(*)}$ signal, with no statistically significant signal of $e^+e^-\to \Upsilon(11020)\to B_s^{(*)}\bar{B}_s^{(*)}$. The relative production ratio of $B_s^*\bar{B}_s^*$, $B_s\bar{B}_s^{*}$, and $B_s\bar{B}_s$ final states at $\sqrt{s}=10.866$ GeV is measured to be $7:$ $0.856\pm0.106(stat.)\pm0.053(syst.):$ $0.645\pm0.094(stat.)^{+0.030}_{-0.033}(syst.)$. An angular analysis of the $B_s^*\bar{B}_s^*$ final state produced at the $\Upsilon(10860)$ peak is also performed.

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