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  Search for the decay $B^{0}\rightarrow K^{\ast 0}τ^{+}τ^{-}$ at the Belle experiment

Belle Collaboration, Dong, T., Luo, T., Adachi, I., Aihara, H., Asner, D., et al. (2023). Search for the decay $B^{0}\rightarrow K^{\ast 0}τ^{+}τ^{-}$ at the Belle experiment. Physical Review D, 108, L011102. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-371.

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Belle Collaboration1, Author
Dong, T.V.1, Author
Luo, T.1, Author
Adachi, I.1, Author
Aihara, H.1, Author
Asner, D.M.1, Author
Atmacan, H.1, Author
Aulchenko, V.1, Author
Aushev, T.1, Author
Ayad, R.1, Author
Babu, V.1, Author
Bahinipati, S.1, Author
Behera, P.1, Author
Belous, K.1, Author
Bernlochner, F.1, Author
Bessner, M.1, Author
Bhuyan, B.1, Author
Bilka, T.1, Author
Biswal, J.1, Author
Bobrov, A.1, Author
Bozek, A.1, AuthorBračko, M.1, AuthorBranchini, P.1, AuthorBrowder, T.E.1, AuthorBudano, A.1, AuthorCampajola, M.1, AuthorČervenkov, D.1, AuthorChang, M.-C.1, AuthorChang, P.1, AuthorChen, A.1, AuthorCheon, B.G.1, AuthorChilikin, K.1, AuthorCho, H.E.1, AuthorCho, K.1, AuthorCho, S.-J.1, AuthorChoi, S.-K.1, AuthorChoi, Y.1, AuthorChoudhury, S.1, AuthorCinabro, D.1, AuthorCunliffe, S.1, AuthorCzank, T.1, AuthorDas, S.1, AuthorDe Nardo, G.1, AuthorDe Pietro, G.1, AuthorDhamija, R.1, AuthorDi Capua, F.1, AuthorDingfelder, J.1, AuthorDoležal, Z.1, AuthorDubey, S.1, AuthorEpifanov, D.1, AuthorFerber, T.1, AuthorFerlewicz, D.1, AuthorFulsom, B.G.1, AuthorGarg, R.1, AuthorGaur, V.1, AuthorGabyshev, N.1, AuthorGarmash, A.1, AuthorGiri, A.1, AuthorGoldenzweig, P.1, AuthorGraziani, E.1, AuthorGu, T.1, AuthorGudkova, K.1, AuthorHara, T.1, AuthorHartbrich, O.1, AuthorHayasaka, K.1, AuthorHernandez Villanueva, M.1, AuthorHou, W.-S.1, AuthorHsu, C.-L.1, AuthorInami, K.1, AuthorInguglia, G.1, AuthorIshikawa, A.1, AuthorItoh, R.1, AuthorIwasaki, M.1, AuthorJacobs, W.W.1, AuthorJang, E.-J.1, AuthorJia, S.1, AuthorJin, Y.1, AuthorJoo, K.K.1, AuthorKahn, J.1, AuthorKang, K.H.1, AuthorKichimi, H.1, AuthorKiesling, C.1, AuthorKim, C.H.1, AuthorKim, D.Y.1, AuthorKim, K.T.1, AuthorKim, S.H.1, AuthorKim, Y.-K.1, AuthorKimmel, T.D.1, AuthorKodyš, P.1, AuthorKonno, T.1, AuthorKorobov, A.1, AuthorKorpar, S.1, AuthorKovalenko, E.1, AuthorKrižan, P.1, AuthorKroeger, R.1, AuthorKrokovny, P.1, AuthorKuhr, T.1, AuthorKulasiri, R.1, AuthorKumar, M.1, AuthorKumar, R.1, AuthorKumara, K.1, AuthorKuzmin, A.1, AuthorKwon, Y.-J.1, AuthorLaurenza, M.1, AuthorLee, S.C.1, AuthorLi, J.1, AuthorLi, L.K.1, AuthorLi, Y.B.1, AuthorLi Gioi, L.1, AuthorLibby, J.1, AuthorLieret, K.1, AuthorLiventsev, D.1, AuthorMacQueen, C.1, AuthorMasuda, M.1, AuthorMatsuda, T.1, AuthorMatvienko, D.1, AuthorMerola, M.1, AuthorMetzner, F.1, AuthorMiyabayashi, K.1, AuthorMizuk, R.1, AuthorMohanty, G.B.1, AuthorNakao, M.1, AuthorNatochii, A.1, AuthorNayak, L.1, AuthorNiiyama, M.1, AuthorNisar, N.K.1, AuthorNishida, S.1, AuthorNishimura, K.1, AuthorOno, H.1, AuthorOnuki, Y.1, AuthorOskin, P.1, AuthorPakhlov, P.1, AuthorPakhlova, G.1, AuthorPardi, S.1, AuthorPark, H.1, AuthorPark, S.-H.1, AuthorPatra, S.1, AuthorPaul, S.1, AuthorPedlar, T.K.1, AuthorPestotnik, R.1, AuthorPiilonen, L.E.1, AuthorPodobnik, T.1, AuthorPopov, V.1, AuthorPrencipe, E.1, AuthorPrim, M.T.1, AuthorRostomyan, A.1, AuthorRout, N.1, AuthorRusso, G.1, AuthorSahoo, D.1, AuthorSandilya, S.1, AuthorSangal, A.1, AuthorSantelj, L.1, AuthorSanuki, T.1, AuthorSavinov, V.1, AuthorSchnell, G.1, AuthorSchueler, J.1, AuthorSchwanda, C.1, AuthorSeino, Y.1, AuthorSenyo, K.1, AuthorSevior, M.E.1, AuthorShapkin, M.1, AuthorSharma, C.1, AuthorShiu, J.-G.1, AuthorSimon, F.1, AuthorSolovieva, E.1, AuthorStarič, M.1, AuthorSumihama, M.1, AuthorSumisawa, K.1, AuthorSumiyoshi, T.1, AuthorTakizawa, M.1, AuthorTamponi, U.1, AuthorTanida, K.1, AuthorTenchini, F.1, AuthorTrabelsi, K.1, AuthorUchida, M.1, AuthorUnno, Y.1, AuthorUno, S.1, AuthorVan Tonder, R.1, AuthorVarner, G.1, AuthorVarvell, K.E.1, AuthorWaheed, E.1, AuthorWang, C.H.1, AuthorWang, E.1, AuthorWang, P.1, AuthorWatanabe, M.1, AuthorWatanuki, S.1, AuthorWerbycka, O.1, AuthorWon, E.1, AuthorYabsley, B.D.1, AuthorYan, W.1, AuthorYang, S.B.1, AuthorYe, H.1, AuthorYin, J.H.1, AuthorZhang, Z.P.1, AuthorZhilich, V.1, AuthorZhukova, V.1, Author more..
1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              


Free keywords: Belle
 Abstract: This letter presents a search for the rare flavor-changing neutral current process $B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}$ using data taken with the Belle detector at the KEKB asymmetric energy $e^{+}e^{-}$ collider. The analysis is based on the entire $\Upsilon(4S)$ resonance data sample of 711 $\rm fb^{-1}$, corresponding to $772\times 10^{6} B \bar{B}$ pairs. In our search we fully reconstruct the companion $B$ meson produced in the process $e^{+}e^{-}\rightarrow\Upsilon(4S)\rightarrow B\bar{B}$ from its hadronic decay modes, and look for the decay $B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}$ in the rest of the event. No evidence for a signal is found. We report an upper limit on the branching fraction $\mathcal{B}({B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}})<2.0\times 10^{-3}$ at 90\% confidence level. This is the first direct limit on $\mathcal{B}({B^{0}\rightarrow K^{\ast 0}\tau^{+}\tau^{-}})$.


 Dates: 2023
 Publication Status: Issued
 Pages: -
 Publishing info: -
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 Rev. Type: -
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Title: Physical Review D
  Abbreviation : Phys.Rev.D
Source Genre: Journal
Publ. Info: -
Pages: - Volume / Issue: 108 Sequence Number: - Start / End Page: L011102 Identifier: -