First Observation Of Inclusive B Decays To The Charmed Strange Baryons Xi Sub C Sup 0 And Xi Sub C Sup

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First Observation Of Inclusive B Decays To The Charmed Strange Baryons Xi Sub C Sup 0 And Xi Sub C Sup

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Author :
language : en
Publisher:
Release Date : 2003

First Observation Of Inclusive B Decays To The Charmed Strange Baryons Xi Sub C Sup 0 And Xi Sub C Sup written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Using data collected in the region of the[Upsilon](4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring (CESR), they present the first observation of B mesons decaying into the charmed strange baryons[Xi][sub c][sup 0] and[Xi][sub c][sup+]. The authors find 79[+-] 27[Xi][sub c][sup 0] and 125[+-] 28[Xi][sub c][sup+] candidates from B decays, leading to product branching fractions of[Beta]([bar B][yields][Xi][sub c][sup 0]X)[Beta]([Xi][sub c][sup 0][yields][Xi][sup -][pi][sup+])= (0.144[+-] 0.048[+-] 0.021) x 10[sup -3] and[Beta]([bar B][yields][Xi][sub c][sup+]X)[Beta]([Xi][sub c][sup+][yields][Xi][sup -][pi][sup+][pi][sup+])= (0.453[+-] 0.096[sub -0.065][sup+0.085]) x 10[sup -3].

Inis Atomindex

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Author :
language : en
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Release Date : 1988

Inis Atomindex written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Nuclear energy categories.

Government Reports Announcements Index

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language : en
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Release Date : 1988-05

Government Reports Announcements Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-05 with Science categories.

First Observation Of Inclusive B Decays To The Charmed Strange Baryons Sub C And Sub C

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language : en
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Release Date : 2003

First Observation Of Inclusive B Decays To The Charmed Strange Baryons Sub C And Sub C written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Using data collected in the region of the?(4S) resonance with the CLEO II detector operating at the Cornell Electron Storage Ring (CESR), they present the first observation of B mesons decaying into the charmed strange baryons?{sub c}° and?{sub c}. The authors find 79 ± 27?{sub c}° and 125 ± 28?{sub c}+ candidates from B decays, leading to product branching fractions of?({bar B} →?{sub c}°X)?(?{sub c}° →?−?+) = (0.144 ± 0.048 ± 0.021) x 10−3 and?({bar B} →?{sub c}+X)?(?{sub c}+ →?−?+?+) = (0.453 ± 0.096{sub -0.065}{sup +0.085}) x 10−3.

Physics Briefs

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Author :
language : en
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Release Date : 1985

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Physics categories.

First Observation Of Doubly Charmed Baryons

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language : en
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Release Date : 2003

First Observation Of Doubly Charmed Baryons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

The SELEX experiment (E781) at Fermilab has observed two statistically compelling high mass states near 3.6 GeV/c[sup 2], decaying to[Lambda][sub c][sup+] K[sup -][pi][sup+] and[Lambda][sub c][sup+] K[sup -][pi][sup+][pi][sup+]. These final states are Cabibbo-allowed decay modes of doubly charmed baryons[Xi][sub cc][sup+] and[Xi][sub cc][sup++], respectively. The masses are in the range expected from theoretical considerations, but the spectroscopy is surprising. SELEX also has weaker preliminary evidence for a state near 3.8 GeV/c[sup 2], a high mass state decaying to[Lambda][sub c][sup+] K[sup -][pi][sup+][pi][sup+], possibly an excited[Xi][sub cc][sup++] (ccu*). Data are presented and discussed.

First Observation Of A Family Of Double Charm Baryons

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language : en
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Release Date : 2002

First Observation Of A Family Of Double Charm Baryons written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

The SELEX experiment (E781) at Fermilab has candidates for high mass states decaying to[Lambda][sub c][sup+]K[sup -][pi][sup+] and[Lambda][sub c][sup+]K[sup -] pi[sup+][pi][sup+], Cabibbo-allowed decay modes of doubly-charmed baryons[Xi][sub cc][sup+] and[Xi][sub cc][sup++]. The masses are consistent with theoretical considerations, but the spectroscopy is surprising. Limited lifetime information suggests that[tau][sub[Xi][sub cc][sup++]][approx][tau][sub Xi][sub cc][sup+].

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language : en
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Release Date : 1997

written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.

Observation Of Exclusive B Decays To Final States Containing A Charmed Baryon

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language : en
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Release Date : 2003

Observation Of Exclusive B Decays To Final States Containing A Charmed Baryon written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Using data collected in the region of the[Upsilon](4S) resonance with the CLEO-II detector, they report on the first observation of exclusive decays of the B meson to final states with a charmed baryon. They have measured the branching fractions[Beta](B[sup -][yields][Lambda][sub c][sup+][bar p][pi][sup -])= (0.62[sub -0.20][sup+0.23][+-] 0.11[+-] 0.10) x 10[sup -3] and[Beta]([bar B][sup 0][yields][Lambda][sub c][sup+][bar p][pi][sup+][pi][sup -])= (1.33[sub -0.42][sup+0.46][+-] 0.31[+-] 0.21) x 10[sup -3]. In addition, they report upper limits for final states of the form[bar B][yields][Lambda][sub c][sup+][bar p](n[pi]) and[Lambda][sub c][sup+][bar p](n[pi])[pi][sup 0] where (n[pi]) denotes up to four charged pions.

Observation Of Two Excited Charmed Baryons Decaying Into Lambda C Pi

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language : en
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Release Date : 2003

Observation Of Two Excited Charmed Baryons Decaying Into Lambda C Pi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Using data recorded by the CLEO-II detector at CESR, we report evidence of a pair of excited charmed baryons, one decaying into[Lambda][sub c][sup+][pi][sup+] and the other into[Lambda][sub c][sup+][pi][sup -]. The doubly charged state has a measured mass difference M([Lambda][sub c][sup+][pi][sup+]) - M([Lambda][sub c][sup+]) of 234.5[+-] 1.1[+-] 0.8 MeV and a width of 17.9[sub -3.2][sup+3.8][+-] 4.0 MeV, and the neutral state has a measured mass difference M([Lambda][sub c][sup+][pi][sup -]) - M([Lambda][sub c][sup+]) of 232.6[+-] 1.0[+-] 0.8 MeV and a width of 13.0[sub -3.0][sup+3.7][+-] 4.0 MeV. We identify these states as[Sigma]*[sub c][sup++] and[Sigma]*[sub c][sup 0], the spin 3/2[sup+] excitations of the[Sigma][sub c] baryons.