First Observation of the Doubly Charmed Baryon<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msubsup><mml:mi>Ξ</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mi>c</mml:mi></mml:mrow><mml:mo>+</mml:mo></mml:msubsup></mml:math>

Mattson, M. E.; Alkhazov, G.; Atamantchouk, A. G.; Balatz, M.Y.; Bondar, N.; Cooper, P. S.; Dauwe, L. J.; Davidenko, G.V.; Dersch, U.; Dolgolenko, A.; Dzyubenko, G.B.; Edelstein, R.; Emediato, L.; Endler, A. M. F.; Engelfried, J.; Eschrich, I.; Escobar, C.; Evdokimov, A.; Филимонов, И. С.; García, F.; Gaspero, M.; Giller, I.; Golovtsov, V. L.; Gouffon, P.; Gülmez, E.; He, Kai; Iori, M.; Jun, S. Y.; Kaya, M.; Kilmer, J.; Kim, V T; Kochenda, L.; Konorov, I.; Кожевников, А. П.; Krivshich, A.; Krüger, H.; Kubantsev, M.; Kubarovsky, V.; Kulyavtsev, A. I.; Kuropatkin, N.P.; Kurshetsov, V. F.; Kushnirenko, A.; Kwan, S.; Lach, J.; Lamberto, A.; Landsberg, L.G.; Larin, I.; Leikin, E.M.; Li, Yun-Shan; Luksys, M.; Lungov, T.; Maleev, V. P.; Mao, Dan; Mao, Chensheng; Zhenlin, Mao; Mathew, P.; Matveev, V.; McCliment, E.; Moinester, M. A.; Molchanov, V. V.; Morelos, A.; Nelson, K. D.; Nemitkin, A.V.; Neoustroev, P. V.; Newsom, C. R.; Nilov, A. P.; Nurushev, S. B.; Ocherashvili, A.; Oliveira, Emmanuel De; Onel, Y.; Ozel, E.; Özkorucuklu, S.; Penzo, A.; Petrenko, S. V.; Pogodin, P.; Procario, M.; Prutskoi, V. A.; Ramberg, E.; Rappazzo, G. F.; Razmyslovich, B. V.; Ruď, V. I.; Russ, J.; Schiavon, P.; Simon, J.; Ситников, А. И.; Skow, D.; Smith, V. J.; Srivastava, M. K.; Steiner, V.; Stepanov, V. V.; Stutte, L.; Svoiski, M.; Terentyev, N.; Thomas, G.; Uvarov, L.; Vasiliev, A. N.; Vavilov, D. V.; Verebryusov, V.S.; Victorov, V.A.; Vishnyakov, V.E.; Vorobyov, A. A.; Vorwalter, K.; You, J. M.; Wenheng, Zhao; Zheng, Sining; Funchal, R. Zukanovich

doi:10.1103/physrevlett.89.112001

Cited by 387 publications

(272 citation statements)

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“…The only evidence in the past from the experimental side was found for + cc by the SELEX a e-mail: wei.wang@sjtu.edu.cn b e-mail: yufsh@lzu.edu.cn c e-mail: star_0027@sjtu.edu.cn collaboration [3,4]. However, this evidence has not been confirmed by any other experiments [5][6][7][8].…”

Section: Introductionmentioning

confidence: 89%

Weak decays of doubly heavy baryons: the $$1/2\rightarrow 1/2$$ 1 / 2 → 1 / 2 case

2017

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− bb and focus on the decays into spin 1/2 baryons in this paper. At the quark level these decay processes are induced by the c → d/s or b → u/c transitions, and the two spectator quarks can be viewed as a scalar or axial vector diquark. We first derive the hadronic form factors for these transitions in the light-front approach and then apply them to predict the partial widths for the semileptonic and nonleptonic decays of doubly heavy baryons. We find that the number of decay channels is sizable and can be examined in future measurements at experimental facilities like LHC, Belle II and CEPC.

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Section: Introductionmentioning

confidence: 89%

Weak decays of doubly heavy baryons: the $$1/2\rightarrow 1/2$$ 1 / 2 → 1 / 2 case

2017

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“…Besides, we obtain 11) corresponding to T ∝ 2a 8 − a 9 − 2a 11 and a 11 , respectively. Currently, apart from [1], such that we can estimate B(Ξ 0 c → Ω − K + ) with the input of B(Ξ 0 c → Ξ − π + ) = (1.6 ± 0.1) × 10 −2 .…”

Section: Jhep11(2017)147mentioning

confidence: 99%

“…For example, the existence of the Ξ + cc state was once reported by the SELEX collaboration [11,12], but not confirmed by the other experiments [13][14][15][16]. Until very recently, LHCb has eventually found the doubly charmed Ξ ++ cc state at a mass of (3621.40 ± 0.72 ± 0.27 ± 0.14) MeV [4], which is reconstructed as the two-body Ξ ++ cc → Σ ++ c (2455)K * 0 decay with the resonant strong decays of Σ ++…”

Section: Introductionmentioning

confidence: 99%

Charmed baryon weak decays with SU(3) flavor symmetry

Geng

Hsiao

Liu

et al. 2017

J. High Energ. Phys.

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Abstract:We study the semileptonic and non-leptonic charmed baryon decays with SU(3) flavor symmetry, where the charmed baryons can be B c = (n denoted as the baryon octet (decuplet), we find that the B c → B ′ n ℓ + ν ℓ decays are forbidden, while theand Ω ++ ccc → Ω + cc ℓ + ν ℓ decays are the only existing Cabibboallowed modes for B ′ c → B ′ n ℓ + ν ℓ , B cc → B ′ c ℓ + ν ℓ , and B ccc → B (′) cc ℓ + ν ℓ , respectively. We predict the rarely studied.3, 4.8±0.5)×10 −3 . For the observation, the doubly and triply charmed baryon decays ofare the favored Cabibboallowed decays, which are accessible to the BESIII and LHCb experiments.

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“…Being isosin partners, the Ξ ++ cc and Ξ + cc are expected to have masses differing by only a few MeV/c 2 , but the lifetime of the Ξ ++ cc should be about three times larger than the one of the Ξ + cc . The observation of the Ξ + cc baryon was reported previously by the SELEX experiment [29,30], but not confirmed by FOCUS, Babar or Belle. The LHCb collaboration used 1.7 fb −1 of data taken in 2016 to look for the decay of a Ξ ++ cc into Λ + c K − π + π + , with Λ + c → pK − π + and found a signal yield of 313 ± 33 events, as seen on Fig.…”

Section: Exotic and New Statesmentioning

confidence: 50%