학술논문

Measurement of the e + e − → B s 0 B ¯ s 0 X $$ {B}_s^0{\overline{B}}_s^0X $$ cross section in the energy range from 10.63 to 11.02 GeV using inclusive D s + $$ {D}_s^{+} $$ and D 0 production
Document Type
article
Author
The Belle collaborationV. ZhukovaR. MizukI. AdachiH. AiharaS. Al SaidD. M. AsnerH. AtmacanV. AulchenkoT. AushevR. AyadV. BabuSw. BanerjeeM. BauerP. BeheraK. BelousJ. BennettF. BernlochnerM. BessnerT. BilkaD. BiswasA. BobrovD. BodrovA. BondarJ. BorahA. BozekM. BračkoP. BranchiniT. E. BrowderM. CampajolaL. CaoD. ČervenkovM.-C. ChangB. G. CheonK. ChilikinH. E. ChoK. ChoS.-K. ChoiY. ChoiS. ChoudhuryD. CinabroS. DasG. De NardoG. De PietroR. DhamijaF. Di CapuaT. V. DongS. DubeyP. EckerD. EpifanovT. FerberD. FerlewiczB. G. FulsomV. GaurA. GarmashA. GiriP. GoldenzweigT. GuK. GudkovaC. HadjivasiliouT. HaraK. HayasakaS. HazraM. T. HedgesD. HerrmannW.-S. HouC.-L. HsuK. InamiN. IpsitaA. IshikawaR. ItohM. IwasakiY. IwasakiW. W. JacobsE.-J. JangS. JiaY. JinK. K. JooA. B. KaliyarT. KawasakiC. KieslingC. H. KimD. Y. KimK.-H. KimY.-K. KimK. KinoshitaP. KodyšA. KorobovS. KorparE. KovalenkoP. KrižanP. KrokovnyM. KumarR. KumarA. KuzminY.-J. KwonY.-T. LaiT. LamM. LaurenzaS. C. LeeD. LevitL. K. LiJ. LibbyK. LieretD. LiventsevY. MaM. MasudaT. MatsudaS. K. MauryaF. MeierM. MerolaF. MetznerK. MiyabayashiG. B. MohantyI. NakamuraT. NakanoM. NakaoZ. NatkaniecA. NatochiiL. NayakN. K. NisarS. NishidaK. OgawaS. OgawaH. OnoP. OskinP. PakhlovG. PakhlovaT. PangS. PardiH. ParkJ. ParkS.-H. ParkA. PasseriS. PatraS. PaulT. K. PedlarR. PestotnikL. E. PiilonenT. PodobnikE. PrencipeM. T. PrimN. RoutG. RussoD. SahooY. SakaiS. SandilyaL. SanteljV. SavinovG. SchnellC. SchwandaA. J. SchwartzY. SeinoK. SenyoW. ShanM. ShapkinC. SharmaJ.-G. ShiuA. SokolovE. SolovievaM. StaričZ. S. StottlerM. SumihamaW. SutcliffeM. TakizawaK. TanidaF. TenchiniR. TiwaryK. TrabelsiM. UchidaY. UnnoS. UnoY. UsovS. E. VahsenG. VarnerA. VinokurovaD. WangE. WangM.-Z. WangX. L. WangM. WatanabeS. WatanukiO. WerbyckaE. WonB. D. YabsleyW. YanJ. H. YinC. Z. YuanL. YuanZ. P. ZhangV. Zhilich
Source
Journal of High Energy Physics, Vol 2023, Iss 8, Pp 1-29 (2023)
Subject
B Physics
e +-e − Experiments
Quarkonium
Spectroscopy
Nuclear and particle physics. Atomic energy. Radioactivity
QC770-798
Language
English
ISSN
1029-8479
Abstract
Abstract We report the first measurement of the inclusive e + e − → b b ¯ $$ b\overline{b} $$ → D s ± $$ {D}_s^{\pm } $$ X and e + e − → b b ¯ $$ b\overline{b} $$ → D 0 / D ¯ 0 $$ {\overline{D}}^0 $$ X cross sections in the energy range from 10.63 to 11.02 GeV. Based on these results, we determine σ(e + e − → B s 0 B ¯ s 0 $$ {B}_s^0{\overline{B}}_s^0 $$ X) and σ(e + e − → B B ¯ $$ B\overline{B} $$ X) in the same energy range. We measure the fraction of B s 0 $$ {B}_s^0 $$ events at Υ(10860) to be f s = ( 22.0 − 2.1 + 2.0 $$ {22.0}_{-2.1}^{+2.0} $$ )%. We determine also the ratio of the B s 0 $$ {B}_s^0 $$ inclusive branching fractions B $$ \mathcal{B} $$ ( B s 0 $$ {B}_s^0 $$ → D 0 / D ¯ 0 $$ {\overline{D}}^0 $$ X)/ B $$ \mathcal{B} $$ ( B s 0 $$ {B}_s^0 $$ → D s ± $$ {D}_s^{\pm } $$ X) = 0.416 ± 0.018 ± 0.092. The results are obtained using the data collected with the Belle detector at the KEKB asymmetric-energy e + e − collider.