# Study of Inclusive $B^-$ and $\bar{B}^0$ Decays toFlavor-Tagged $D$, $D_s$ and $\Lambda_c$

### Description

We report on a study of inclusive B{sup -} and {bar B}{sup 0} meson decays to D{sup 0}X, {bar D}{sup 0}X, D{sup +}X, D{sup -}X, D{sub s}{sup +}X, D{sub s}{sup -}X, {Lambda}{sub c}{sup +}X, {bar {Lambda}}{sub c}{sup -}X, based on a sample of 231 million B{bar B} events recorded with the BABAR detector at the {Upsilon}(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anti-charm particles per {bar B} decay, separately ... continued below

### Creation Information

Aubert, B. June 15, 2006.

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### Description

We report on a study of inclusive B{sup -} and {bar B}{sup 0} meson decays to D{sup 0}X, {bar D}{sup 0}X, D{sup +}X, D{sup -}X, D{sub s}{sup +}X, D{sub s}{sup -}X, {Lambda}{sub c}{sup +}X, {bar {Lambda}}{sub c}{sup -}X, based on a sample of 231 million B{bar B} events recorded with the BABAR detector at the {Upsilon}(4S) resonance. Events are selected by completely reconstructing one B and searching for a reconstructed charm particle in the rest of the event. From the measured branching fractions of these decays, we infer the number of charm and anti-charm particles per {bar B} decay, separately for charged and neutral parents. We derive the total charm yield per B{sup -} decay, n{sub c}{sup -} = 1.202 {+-} 0.023 {+-} 0.040{sub -0.029}{sup +0.035}, and per {bar B}{sup 0} decay, n = 1.193 {+-} 0.030 {+-} 0.034{sub -0.035}{sup +0.044} where the first uncertainty is statistical, the second is systematic, and the third reflects the charm branching-fraction uncertainties. We also present the charm momentum distributions measured in the {bar B} rest frame.

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• Report No.: SLAC-PUB-11898
• Grant Number: AC02-76SF00515
• DOI: 10.2172/883704 | External Link
• Office of Scientific & Technical Information Report Number: 883704

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#### Office of Scientific & Technical Information Technical Reports

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### Creation Date

• June 15, 2006

### Added to The UNT Digital Library

• Sept. 21, 2016, 2:29 a.m.

### Description Last Updated

• Dec. 2, 2016, 12:59 p.m.

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Aubert, B. Study of Inclusive $B^-$ and $\bar{B}^0$ Decays toFlavor-Tagged $D$, $D_s$ and $\Lambda_c$, report, June 15, 2006; [Menlo Park, California]. (digital.library.unt.edu/ark:/67531/metadc874193/: accessed April 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.