Measurement Of The Lambda 0 B Lambda C Pi Branching Ratio

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Measurement Of The Lambda 0 B Lambda C Pi Branching Ratio

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Author : Yi Le
language : en
Publisher:
Release Date : 2003

Measurement Of The Lambda 0 B Lambda C Pi Branching Ratio written by Yi Le 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 authors present a measurement of the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +} {pi}{sup -} branching ratio in p{bar p} collisions at {radical}s = 1.96 TeV using 65 pb{sup -1} data collected by the Collider Detector at Fermilab (CDF). The measurement starts from reconstructing two decay modes: {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}, where {Lambda}{sub c}{sup +} {yields} p K{sup -} {pi}{sup +}; and {bar B}{sup 0} {yields} D{sup +}{pi}{sup -}, where D{sup +} {yields} {pi}{sup +} K{sup -} {pi}{sup +}. The authors obtained 96 {+-} 13 {Lambda}{sub b}{sup 0} and 321 {+-} 22 {bar B}{sup 0} candidates from the CDF Run II Two-Track Hadronic Trigger data sample. The relative branching ratio of the two decays is then measured based on the equation: f{sub {Lambda}{sub b}} BR({Lambda}{sub b} {yields} {Lambda}{sub c}{sup +} {pi}{sup -})/f{sub d} BR({bar B}{sup 0} {yields} D{sup +} {pi}{sup -}) = BR(D{sup +} {yields} K{pi}{pi}) N{sub {Lambda}{sub b}} {epsilon}{sub B{sup 0}}/BR({Lambda}{sub c}{sup +} {yields} pK{pi}) N{sub {bar B}{sup 0}} {epsilon}{sub {Lambda}{sub b}}. The measurement gives f{sub {Lambda}{sub b}} BR({Lambda}{sub b} {yields} {Lambda}{sub c}{sup +}{pi}{sup -})/f{sub d} BR({bar B}{sup 0} {yields} D{sup +}{pi}{sup -}) = 0.66 {+-} 0.11(stat) {+-} 0.09(syst) {+-} 0.18(BR). The {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} branching ratio is then extracted, giving BR({Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -}) = (6.6 {+-} 1.2(stat.) {+-} 0.9(syst.) {+-} 2.3(BR+FR)) x 10{sup -3}. The {Lambda}{sub b}{sup 0} sample they reconstructed in this analysis is the largest fully reconstructed {Lambda}{sub b}{sup 0} sample in existence. The result they report here on the {Lambda}{sub b}{sup 0} {yields} {Lambda}{sub c}{sup +}{pi}{sup -} branching ratio is the world's first such measurement.

High Energy Physics Index

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Author :
language : en
Publisher:
Release Date : 1992

High Energy Physics 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 1992 with Particles (Nuclear physics) categories.

Physics In Collision 11

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Author : J. M. Brom
language : en
Publisher: Atlantica Séguier Frontières
Release Date : 1991

Physics In Collision 11 written by J. M. Brom and has been published by Atlantica Séguier Frontières this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Lepton interactions categories.

Nuclear Science Abstracts

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Author :
language : en
Publisher:
Release Date : 1976-02

Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976-02 with Nuclear energy categories.

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1989

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Power resources categories.

Nuclear Data

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Author :
language : en
Publisher:
Release Date : 1994

Nuclear Data written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Nuclear physics categories.

Government Reports Announcements Index

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Author :
language : en
Publisher:
Release Date : 1983

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 1983 with Science categories.

Vin A Annual Report 2004

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Author : Златко Ракочевић
language : en
Publisher: Institut za nuklearne nauke VINČA
Release Date : 2016-03-24

Vin A Annual Report 2004 written by Златко Ракочевић and has been published by Institut za nuklearne nauke VINČA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-24 with categories.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1983

Energy Research Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Power resources categories.

Includes all works deriving from DOE, other related government-sponsored information and foreign nonnuclear information.