Document Detail


Anticharmed pentaquark from B decays.
MedLine Citation:
PMID:  16605725     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
We explore the possibility of observing the anticharmed pentaquark state from the theta(c)npi(+) decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B(+) to lambda(-)(c)p pi(+), as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the pi(+) D(0) (or D(*0)) decay, and then through the subsequent decay of the virtual D(0) or D(*0) mesons to lambda(-)(c)p. We then note that the theta(c)can be similarly produced when the virtual D(0) or D(*0) decay into an antinucleon and a theta(c). Combining the present theoretical estimates for the ratio g(DNlambda(c))/g(DNtheta(c)) approximately 13 and g(D*Ntheta(c)) approximately 1/3g(DNtheta(c)), we find that the anticharmed pentaquark theta(c), which was predicted to be bound by several model calculations, can be produced via B(+)--> theta(c)npi(+), and be observed from the B-factory experiments through the weak decay of theta(c)--> pK(+) pi(-) pi(-).
Authors:
Su Houng Lee; Youngshin Kwon; Youngjoon Kwon
Related Documents :
18517775 - Unitary parametrization of perturbations to tribimaximal neutrino mixing.
16135895 - Experimental evaluation of conversion factors, n(d,w)/n(x), for roos-type and advanced-...
15257575 - Hydrothermal route to inas semiconductor nanocrystals.
16712215 - Observation of a near-threshold enhancement in the omega(phi) mass spectrum from the do...
3535815 - Role of dietary and environmental factors in drug abuse.
19765625 - What constitutes food variety? stimulus specificity of food.
Publication Detail:
Type:  Journal Article     Date:  2006-03-15
Journal Detail:
Title:  Physical review letters     Volume:  96     ISSN:  0031-9007     ISO Abbreviation:  Phys. Rev. Lett.     Publication Date:  2006 Mar 
Date Detail:
Created Date:  2006-04-11     Completed Date:  2006-05-25     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0401141     Medline TA:  Phys Rev Lett     Country:  United States    
Other Details:
Languages:  eng     Pagination:  102001     Citation Subset:  -    
Affiliation:
Institute of Physics and Applied Physics, Yonsei University, Seoul 120-749, Korea. suhoung@phya.yonsei.ac.kr
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Search for the invisible decay of neutrons with KamLAND.
Next Document:  Measurement of the dipion mass spectrum in decays.