B-factories Legacy Book 11st Meeting, SLAC, Oct 2009 Section Editors BaBar: Mat Charles Belle: Roman Mizuk Theory: (not assigned) Charmed baryon spectroscopy.

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Presentation transcript:

B-factories Legacy Book 11st Meeting, SLAC, Oct 2009 Section Editors BaBar: Mat Charles Belle: Roman Mizuk Theory: (not assigned) Charmed baryon spectroscopy and decays B-factories Legacy Book Meeting SLAC, Oct 30-31

B-factories Legacy Book 21st Meeting, SLAC, Oct 2009 Papers (detail on next slides) BaBar Published 1) Phys.Rev.D72:052006,2005 2) Phys.Rev.Lett.98:012001,2007 3) Phys.Rev.D78:112003,2008 4) Phys.Rev.D77:012002,2008 5) Phys.Rev.D77:031101,2008 6) Phys.Rev.Lett.97:232001,2006 7) Phys.Rev.D74:011103,2006 8) Phys.Rev.D75:052002,2007 9) Phys.Rev.Lett.95:142003, ) Phys.Rev.Lett.99:062001, ) Phys.Rev.Lett.97:112001, ) Phys.Rev.D78:034008,2008 Foreseen papers in time to be included in the book: 1)Xic’ mass & spin 2)Xi(1690) in Lc decays Belle Published 1) Phys.Lett.B524:33-43,2002 2) Phys.Rev.Lett.94:122002,2005 3) Phys.Rev.Lett.97:162001,2006 4) Phys.Rev.Lett.98:262001,2007 5) Phys.Lett.B665:9-15,2008 6) Phys.Lett.B672:1-5,2009 7) Phys.Lett.B605: ,2005 Foreseen papers in time to be included in the book : (none on radar) Summary of papers (BaBar+Belle): PRL: 8 PRD: 7 PLB: 4 Pending: 2

B-factories Legacy Book 31st Meeting, SLAC, Oct 2009 Detail on papers: Spectroscopy Λ c and Σ c families: Phys.Rev.D72:052006,2005 (BABAR): Λ c + ground state mass Phys.Rev.Lett.98:012001,2007 (BABAR): Λ c (2880) and Λ c (2940) mass, width Phys.Rev.Lett.98:262001,2007 (Belle): Spin/parity of Λ c (2880); mass+width of Λ c (2880) and Λ c (2940) Phys.Rev.D78:112003,2008 (BABAR): Σ c resonances in B − → Λ c p π − Phys.Rev.Lett.94:122002,2005 (Belle): Properties of Σ c (2800) Ξ c family: Phys.Lett.B605: ,2005 (Belle): Masses of Ξ c 0, Ξ c + Unpublished (BABAR): Mass, spin of Ξ′ c 0 Phys.Rev.Lett.97:162001,2006 (Belle): Ξ c (2980), Ξ c (3077); search for Ξ cc Ξ c family (ctd) Phys.Lett.B665:9-15,2008 (Belle): Ξ c (2645), Ξ c (2815), Ξ c (2980) masses, width of Ξ c (2980) Phys.Rev.D77:012002,2008 (BABAR): Ξ c (2980), Ξ c (3055), Ξ c (3077), Ξ c (3123) properties Phys.Rev.D77:031101,2008 (BABAR): Possible Ξ c (2930) in B − → Λ c + Λ c − K − Ω c family: Phys.Rev.Lett.97:232001,2006 (BABAR): Ω c *0 mass Phys.Lett.B672:1-5,2009 (Belle): Masses of Ω c 0, Ω c *0 Ξ cc family: Phys.Rev.D74:011103,2006 (BABAR): Search for Ξ cc

B-factories Legacy Book 41st Meeting, SLAC, Oct 2009 Detail on papers: Decays Weak decay BRs: Phys.Lett.B524:33-43,2002 (Belle): Weak decay BRs of Λ c Phys.Rev.D75:052002,2007 (BABAR): Weak decay BRs of Λ c Phys.Rev.Lett.95:142003,2005 (BABAR): Weak decay BRs of Ξ c 0 Phys.Lett.B605: ,2005 (Belle): Weak decay BRs of Ξ c 0, Ξ c + Phys.Rev.Lett.99:062001,2007 (BABAR): Weak decay BRs of Ω c Light baryon properties: Phys.Rev.Lett.97:112001,2006 (BABAR): Spin of Ω − Phys.Rev.D78:034008,2008 (BABAR): Spin of Ξ(1530) 0 Unpublished (BABAR): Mass, width, spin of Ξ(1690) 0

B-factories Legacy Book 51st Meeting, SLAC, Oct 2009 Section subdivision 1.Spectroscopy of charmed baryons 1.Introduction 1.Overview & terminology 2.Quark model expectations for ground states 3.Phenomenological predictions for higher states 2.The Λ c and Σ c families of states 3.The Ξ c family of states 4.The Ω c family of states 5.Searches for Ξ cc states 6.Conclusions 2.Weak decays of charmed baryons 1.Introduction 2.Results and discussion 1.Λ c + 2.Ξ c 0 and Ξ c + 3.Ω c 0 3.Comments on absolute branching fractions 3.Applications to light baryon spectroscopy 1.Introduction and terminology 2.Measuring the Ω − spin 3.Properties of the Ξ(1530) and Ξ(1690) 4.Conclusions 4.Outlook Approximate expected # pages needed for whole section: unclear yet!

B-factories Legacy Book 61st Meeting, SLAC, Oct 2009 Inter-correlation Several cases where papers involve charmed baryons but main thrust of analysis belongs in another section: Exclusive B decays to charmed baryons (→ baryonic B decays) Inclusive momentum spectra of baryons (→ fragmentation and/or baryonic B decays) Λ c + Λ c − pair production with popcorn (→ fragmentation) Λ c + Λ c − pair production in ISR events (→ ISR? Exotics?) Section editors for baryonic B decays & fragmentation contacted. Resolution: those analysis topics will be covered elsewhere (i.e. not by us) Subset of the above include results on charmed baryon spectroscopy / decays in same paper. In those cases, we’ll cover that part. Example: B − → Λ c + p π − includes results on Σ c resonances.

B-factories Legacy Book 71st Meeting, SLAC, Oct 2009 Contributors Confirmed (beside section editors) BaBar: Pat Burchat* Belle: Ruslan Chistov* Un-confirmed BaBar: 2 Belle: 0 * Volunteer for reading/editing/criticism

B-factories Legacy Book 81st Meeting, SLAC, Oct 2009 Comments Would like to be able to say something about absolute charmed baryon branching fractions. Preliminary result from Belle, but no published results from either Belle or BABAR. (Analysis started on BABAR side but almost zero manpower.) This is worth doing!