Anticharmed pentaquark from B decays

Su Houng Lee, Youngshin Kwon, Youngjoon Kwon

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

We explore the possibility of observing the anticharmed pentaquark state from the Θcn̄π+ decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B+ to Λc-pπ+, as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the π+D̄0 (or D̄*0) decay, and then through the subsequent decay of the virtual D̄0 or D̄*0 mesons to Λc-p. We then note that the Θc can be similarly produced when the virtual D̄0 or D̄*0 decay into an antinucleon and a Θc. Combining the present theoretical estimates for the ratio gDNΛc/gDNΘc∼13 and gD*NΘc∼13gDNΘc, we find that the anticharmed pentaquark Θc, which was predicted to be bound by several model calculations, can be produced via B+→Θcn̄π+, and be observed from the B-factory experiments through the weak decay of Θc→pK+π-π-.

Original languageEnglish
Article number102001
JournalPhysical Review Letters
Volume96
Issue number10
DOIs
Publication statusPublished - 2006 Mar 23

Fingerprint

decay
industrial plants
mesons
histograms
estimates

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

@article{7d6e1ebe40bc420fbe351a5363ced6dc,
title = "Anticharmed pentaquark from B decays",
abstract = "We explore the possibility of observing the anticharmed pentaquark state from the Θcn̄π+ decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B+ to Λc-pπ+, as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the π+D̄0 (or D̄*0) decay, and then through the subsequent decay of the virtual D̄0 or D̄*0 mesons to Λc-p. We then note that the Θc can be similarly produced when the virtual D̄0 or D̄*0 decay into an antinucleon and a Θc. Combining the present theoretical estimates for the ratio gDNΛc/gDNΘc∼13 and gD*NΘc∼13gDNΘc, we find that the anticharmed pentaquark Θc, which was predicted to be bound by several model calculations, can be produced via B+→Θcn̄π+, and be observed from the B-factory experiments through the weak decay of Θc→pK+π-π-.",
author = "Lee, {Su Houng} and Youngshin Kwon and Youngjoon Kwon",
year = "2006",
month = "3",
day = "23",
doi = "10.1103/PhysRevLett.96.102001",
language = "English",
volume = "96",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "10",

}

Anticharmed pentaquark from B decays. / Lee, Su Houng; Kwon, Youngshin; Kwon, Youngjoon.

In: Physical Review Letters, Vol. 96, No. 10, 102001, 23.03.2006.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Anticharmed pentaquark from B decays

AU - Lee, Su Houng

AU - Kwon, Youngshin

AU - Kwon, Youngjoon

PY - 2006/3/23

Y1 - 2006/3/23

N2 - We explore the possibility of observing the anticharmed pentaquark state from the Θcn̄π+ decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B+ to Λc-pπ+, as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the π+D̄0 (or D̄*0) decay, and then through the subsequent decay of the virtual D̄0 or D̄*0 mesons to Λc-p. We then note that the Θc can be similarly produced when the virtual D̄0 or D̄*0 decay into an antinucleon and a Θc. Combining the present theoretical estimates for the ratio gDNΛc/gDNΘc∼13 and gD*NΘc∼13gDNΘc, we find that the anticharmed pentaquark Θc, which was predicted to be bound by several model calculations, can be produced via B+→Θcn̄π+, and be observed from the B-factory experiments through the weak decay of Θc→pK+π-π-.

AB - We explore the possibility of observing the anticharmed pentaquark state from the Θcn̄π+ decay of B mesons produced in B-factory experiments. We first show that the observed branching ratio of the B+ to Λc-pπ+, as well as its open histograms, can be remarkably well explained by assuming that the decay proceeds first through the π+D̄0 (or D̄*0) decay, and then through the subsequent decay of the virtual D̄0 or D̄*0 mesons to Λc-p. We then note that the Θc can be similarly produced when the virtual D̄0 or D̄*0 decay into an antinucleon and a Θc. Combining the present theoretical estimates for the ratio gDNΛc/gDNΘc∼13 and gD*NΘc∼13gDNΘc, we find that the anticharmed pentaquark Θc, which was predicted to be bound by several model calculations, can be produced via B+→Θcn̄π+, and be observed from the B-factory experiments through the weak decay of Θc→pK+π-π-.

UR - http://www.scopus.com/inward/record.url?scp=33644933642&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33644933642&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.96.102001

DO - 10.1103/PhysRevLett.96.102001

M3 - Article

VL - 96

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 10

M1 - 102001

ER -