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  Search for $B^0$ meson decays into $Λ$ and missing energy with a hadronic tagging method at Belle

Belle Collaboration, Hadjivasiliou, C., Fulsom, B., Strube, J., Adachi, I., Aihara, H., et al. (2022). Search for $B^0$ meson decays into $Λ$ and missing energy with a hadronic tagging method at Belle. Physical Review D, 105, L051101. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2021-376.

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Belle Collaboration1, Author
Hadjivasiliou, C.1, Author
Fulsom, B.G.1, Author
Strube, J.F.1, Author
Adachi, I.1, Author
Aihara, H.1, Author
Asner, D.M.1, Author
Atmacan, H.1, Author
Aushev, T.1, Author
Babu, V.1, Author
Belous, K.1, Author
Bennett, J.1, Author
Bessner, M.1, Author
Bhardwaj, V.1, Author
Bhuyan, B.1, Author
Bilka, T.1, Author
Biswal, J.1, Author
Bodrov, D.1, Author
Borah, J.1, Author
Bozek, A.1, Author
Bračko, 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, AuthorChoi, S.-K.1, AuthorChoi, Y.1, AuthorChoudhury, S.1, AuthorCinabro, D.1, AuthorCunliffe, S.1, AuthorDas, S.1, AuthorDe Pietro, G.1, AuthorDi Capua, F.1, AuthorDoležal, Z.1, AuthorDong, T.V.1, AuthorDossett, D.1, AuthorEpifanov, D.1, AuthorFerber, T.1, AuthorGarg, R.1, AuthorGaur, V.1, AuthorGiri, A.1, AuthorGoldenzweig, P.1, AuthorGu, T.1, AuthorGudkova, K.1, AuthorHayashii, H.1, AuthorHou, W.-S.1, AuthorHsu, C.-L.1, AuthorIijima, T.1, AuthorInami, K.1, AuthorInguglia, G.1, AuthorIshikawa, A.1, AuthorIwasaki, M.1, AuthorIwasaki, Y.1, AuthorJacobs, W.W.1, AuthorJia, S.1, AuthorJin, Y.1, AuthorKahn, J.1, AuthorKaliyar, A.B.1, AuthorKang, K.H.1, AuthorKaryan, G.1, AuthorKiesling, C.1, AuthorKim, C.H.1, AuthorKim, D.Y.1, AuthorKim, K.T.1, AuthorKim, Y.-K.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, AuthorKumar, R.1, AuthorKumara, K.1, AuthorKwon, Y.-J.1, AuthorLee, S.C.1, AuthorLi, L.K.1, AuthorLi, S.X.1, AuthorLi, Y.B.1, AuthorLi Gioi, L.1, AuthorLibby, J.1, AuthorLieret, K.1, AuthorMacQueen, C.1, AuthorMasuda, M.1, AuthorMatvienko, D.1, AuthorMerola, M.1, AuthorMiyabayashi, K.1, AuthorMizuk, R.1, AuthorMohanty, G.B.1, AuthorMussa, R.1, AuthorNakao, M.1, AuthorNatkaniec, Z.1, AuthorNatochii, A.1, AuthorNayak, M.1, AuthorNisar, N.K.1, AuthorNishida, S.1, AuthorNishimura, K.1, AuthorOno, H.1, AuthorOskin, P.1, AuthorPakhlov, P.1, AuthorPakhlova, G.1, AuthorPang, T.1, AuthorPark, S.-H.1, AuthorPaul, S.1, AuthorPedlar, T.K.1, AuthorPiilonen, L.E.1, AuthorPodobnik, T.1, AuthorPopov, V.1, AuthorPrencipe, E.1, AuthorPrim, M.T.1, AuthorRöhrken, M.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, AuthorSchwanda, C.1, AuthorSeino, Y.1, AuthorSenyo, K.1, AuthorShapkin, M.1, AuthorShen, C.P.1, AuthorShiu, J.-G.1, AuthorShwartz, B.1, AuthorSimon, F.1, AuthorSingh, J.B.1, AuthorSolovieva, E.1, AuthorStarič, M.1, AuthorStottler, Z.S.1, AuthorSumihama, M.1, AuthorSumiyoshi, T.1, AuthorTakizawa, M.1, AuthorTanida, K.1, AuthorTenchini, F.1, AuthorUchida, M.1, AuthorUglov, T.1, AuthorUnno, Y.1, AuthorUno, S.1, AuthorVan Tonder, R.1, AuthorVarner, G.1, AuthorVinokurova, A.1, AuthorWaheed, E.1, AuthorWang, C.H.1, AuthorWang, E.1, AuthorWang, M.-Z.1, AuthorWang, P.1, AuthorWang, X.L.1, AuthorWatanuki, S.1, AuthorWood, L.1, AuthorYabsley, B.D.1, AuthorYan, W.1, AuthorYe, H.1, AuthorYelton, J.1, AuthorYin, J.H.1, AuthorZhang, Z.P.1, AuthorZhilich, V.1, AuthorZhukova, V.1, Author more..
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1Max Planck Institute for Physics, Max Planck Society and Cooperation Partners, ou_2253650              

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Free keywords: Belle
 Abstract: We present a search for the decays of $B^0$ mesons into a final state containing a $\Lambda$ baryon and missing energy. These results are obtained from a $711\text{fb}^{-1}$ data sample that contains $772 \times 10^6$ $B{\kern 0.18em}\overline{\kern -0.18em B}$ pairs and was collected near the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We use events in which one $B$ meson is fully reconstructed in a hadronic decay mode and require the remainder of the event to consist of only a single $\Lambda$. No evidence for these decays is found and we set $90\%$ confidence level upper limits on the branching fractions in the range $2.1$-$3.8\times 10^{-5}$. This measurement provides the world's most restrictive limits, with implications for baryogenesis and dark matter production.

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 Dates: 2022
 Publication Status: Issued
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Title: Physical Review D
  Abbreviation : Phys.Rev.D
Source Genre: Journal
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Pages: - Volume / Issue: 105 Sequence Number: - Start / End Page: L051101 Identifier: -