Understanding B ---> D*- N anti-N and its implications

Chua, Chun-Khiang; Hou, Wei-Shu; Tsai, Shang-Yuu

doi:10.1103/PhysRevD.65.034003

Understanding B ---> D*- N anti-N and its implications

Jul, 2001

14 pages

Published in:

Phys.Rev.D 65 (2002) 034003

e-Print:

hep-ph/0107110 [hep-ph]

DOI:

10.1103/PhysRevD.65.034003

View in:

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Abstract:

The CLEO Collaboration recently reported the observation of the

B^0\to D^{*-}p\bar{n}

mode at a rate only a factor of 4--5 lower than

B^0\to D^{*-}\rho^+

and

D^{*-}\pi^+

. We try to understand this with a factorization approach of current produced nucleon pairs. The baryon weak vector current form factors are related by isospin rotation to nucleon electromagnetic form factors. By using

G^{p,n}_M

measured from

e^+e^-\to \bar{N}N

and

p\bar{p}\to e^+e^-

processes, assuming factorization of the

B^0\to D^{*-}

transition and the

p\bar n

pair production, we are able to account for up to 60% of the observed rate. The remainder is argued to arise from the axial current. The model is then applied to B decays to other mesons plus

p\bar{n}

modes and

D^{*-}

plus strange baryon pairs.

13.40.Gp
13.25.Hw
14.20.Dh
B0: hadronic decay
D*(2010)
nucleon: pair production
factorization
color: transparency
Feynman graph
nucleon: form factor

References(41)

Figures(0)

Heavy baryon production and decay

Isard Dunietz
(
- Fermilab
)

- Phys.Rev.D 58 (1998) 094010
•
e-Print:
- hep-ph/9805287
•
DOI:
- 10.1103/PhysRevD.58.094010

First observation of the decays B0 ---> D- p anti-p pi+ and B0 ---> D-p anti-n

CLEO

Collaboration

•

S. Anderson
(
- Minnesota U.
)

et al.

- Phys.Rev.Lett. 86 (2001) 2732-2736
•
e-Print:
- hep-ex/0009011
•
DOI:
- 10.1103/PhysRevLett.86.2732

Review of particle physics. Particle Data Group

et al.

- Eur.Phys.J.C 15 (2000) 1-878

Pathways to rare baryonic B decays

Wei-Shu Hou
(
- Taiwan, Natl. Taiwan U.
)
,
A. Soni
(
- Brookhaven
)

- Phys.Rev.Lett. 86 (2001) 4247-4250
•
e-Print:
- hep-ph/0008079
•
DOI:
- 10.1103/PhysRevLett.86.4247

Observation of high momentum eta-prime production in B decay

CLEO

Collaboration

•

T.E. Browder
(
- Hawaii U.
)

et al.

- Phys.Rev.Lett. 81 (1998) 1786-1790
•
e-Print:
- hep-ex/9804018
•
DOI:
- 10.1103/PhysRevLett.81.1786

Electromagnetic form-factors of the proton at squared four momentum transfers between 10-fm-2 and 50 fm-2

- Phys.Lett.B 35 (1971) 87-89
•
DOI:
- 10.1016/0370-2693(71)90448-5

Electromagnetic proton form-factors at squared four momentum transfers between 1-GeV/c2 and 3-GeV/c2

W. Bartel
(
- DESY and
- Hamburg U.
)
,
F.W. Busser
(
- DESY and
- Hamburg U.
)
,
W.R. Dix
(
- DESY and
- Hamburg U.
)
,
R. Felst
(
- DESY and
- Hamburg U.
)
,
D. Harms
(
- DESY and
- Hamburg U.
)

et al.

- Phys.Lett.B 33 (1970) 245-248
•
DOI:
- 10.1016/0370-2693(70)90585-X

Proton form factors from elastic electron-proton scattering

- Phys.Rev. 142 (1966) 922-931
•
DOI:
- 10.1103/PhysRev.142.922

Analysis of Electromagnetic Nucleon Form-Factors

G. Hohler
(
- Karlsruhe U.
)
,
E. Pietarinen
(
- Karlsruhe U.
)
,
I. Sabba Stefanescu
(
- Karlsruhe U.
)
,
F. Borkowski
(
- Mainz U., Inst. Kernphys.
)
,
G.G. Simon
(
- Mainz U., Inst. Kernphys.
)

et al.

- Nucl.Phys.B 114 (1976) 505-534
•
DOI:
- 10.1016/0550-3213(76)90449-1

Electromagnetic Form-Factors of the Proton at Low Four-Momentum Transfer

F. Borkowski
(
- Mainz U., Inst. Kernphys.
)
,
P. Peuser
(
- Mainz U., Inst. Kernphys.
)
,
G.G. Simon
(
- Mainz U., Inst. Kernphys.
)
,
V.H. Walther
(
- Mainz U., Inst. Kernphys.
)
,
R.D. Wendling
(
- Mainz U., Inst. Kernphys.
)

- Nucl.Phys.B 93 (1975) 461-478
•
DOI:
- 10.1016/0550-3213(75)90514-3

Measurement of Elastic electron Scattering from the Proton at High Momentum Transfer

et al.

- Phys.Rev.Lett. 57 (1986) 174
•
DOI:
- 10.1103/PhysRevLett.57.174

- Phys.Lett.B 234 353

Measurements of the magnetic form-factor of the proton in the timelike region at large momentum transfer

E835

Collaboration

•

M. Ambrogiani
(
- INFN, Ferrara and
- Ferrara U.
)

et al.

- Phys.Rev.D 60 (1999) 032002
•
DOI:
- 10.1103/PhysRevD.60.032002

The first measurement of the neutron electromagnetic form-factors in the timelike region

A. Antonelli
(
- Frascati
)
,
R. Baldini
(
- Frascati
)
,
P. Benasi
(
- Ferrara U. and
- INFN, Ferrara
)
,
M. Bertani
(
- Ferrara U. and
- INFN, Ferrara
)
,
M.E. Biagini
(
- Frascati
)

et al.

- Nucl.Phys.B 517 (1998) 3-35
•
DOI:
- 10.1016/S0550-3213(98)00083-2

Measurement of the proton electromagnetic form-factors in the timelike region at $8.9-GeV^{2} - 13-GeV^{2}$

E760

Collaboration

•

T.A. Armstrong

et al.

- Phys.Rev.Lett. 70 (1993) 1212-1215
•
DOI:
- 10.1103/PhysRevLett.70.1212

The reaction e+ e- ---> p anti-p at a total energy of 2.1 gev

et al.

- Nuovo Cim.A 14 (1973) 1-20
•
DOI:
- 10.1007/BF02734600

First Determination of the Proton Electromagnetic Form-Factors at the Threshold of the Timelike Region

Mulhouse-Strasbourg-Turin

Collaboration

•

G. Bassompierre
(
- Strasbourg, CRN
)

et al.

- Phys.Lett.B 68 (1977) 477-479
•
DOI:
- 10.1016/0370-2693(77)90475-0

ELECTRON POSITRON PAIR PRODUCTION IN ANTI-P P ANNIHILATION AT REST AND RELATED DETERMINATION OF THE ELECTROMAGNETIC FORM-FACTOR OF THE PROTON IN THE TIMELIKE REGION

G. Bassompierre
(
- Strasbourg, CRN
)
,
M.a. Schneegans
(
- Strasbourg, CRN
)
,
G. Binder
(
- Haute Alsace U., GRPHE
)
,
G. Gissinger
(
- Haute Alsace U., GRPHE
)
,
S. Jacquey
(
- Haute Alsace U., GRPHE
)

et al.

- Nuovo Cim.A 73 (1983) 347-363,
- Nuovo Cim. 73A ( 1983) 347-363
•
DOI:
- 10.1007/BF02724235

Study of the Reaction $e^+ e^- \to p \bar{p}$ in the Total Energy Range 1925-{MeV} - 2180-{MeV}

et al.

- Phys.Lett.B 86 (1979) 395-398
•
DOI:
- 10.1016/0370-2693(79)90864-5

>A Measurement of $e^+ e^- \to \bar{p} p$ for 1975-{MeV} $\le \sqrt{s} \le$ 2250-{MeV}

D. Bisello
(
- Padua U. and
- INFN, Padua
)
,
S. Limentani
(
- Padua U. and
- INFN, Padua
)
,
M. Nigro
(
- Padua U. and
- INFN, Padua
)
,
L. Pescara
(
- Padua U. and
- INFN, Padua
)
,
M. Posocco
(
- Padua U. and
- INFN, Padua
)

et al.

- Nucl.Phys.B 224 (1983) 379,
- Nucl. Phys. B224 ( 1983) 379-395 and Orsay Lab. Accel. Lin. - L.A.L. 83-15 (83,REC.JUL.) 34p
•
DOI:
- 10.1016/0550-3213(83)90381-4

Baryon pair production in e+ e- annihilation at S**(1/2) = 2.4-GeV

DM2

Collaboration

•

D. Bisello
(
- Padua U. and
- INFN, Padua
)

et al.

- Z.Phys.C 48 (1990) 23-28
•
DOI:
- 10.1007/BF01565602

Measurement of the proton electromagnetic form-factor near threshold in the timelike region

G. Bardin
(
- Saclay
)
,
G. Burgun
(
- Saclay
)
,
R. Calabrese
(
- Ferrara U. and
- INFN, Ferrara
)
,
G. Capon
(
- Frascati
)
,
R. Carlin
(
- INFN, Padua and
- Padua U.
)

et al.

- Phys.Lett.B 255 (1991) 149-154
•
DOI:
- 10.1016/0370-2693(91)91157-Q

Precise determination of the electromagnetic form-factor of the proton in the timelike region up to s = 4.2-GeV**2

G. Bardin
(
- Saclay
)
,
G. Burgun
(
- Saclay
)
,
R. Calabrese
(
- Ferrara U. and
- INFN, Ferrara
)
,
G. Capon
(
- Frascati
)
,
R. Carlin
(
- INFN, Padua and
- Padua U.
)

et al.

- Phys.Lett.B 257 (1991) 514-518
•
DOI:
- 10.1016/0370-2693(91)91929-P

Determination of the electric and magnetic form-factors of the proton in the timelike region

G. Bardin
(
- DAPNIA, Saclay
)
,
G. Burgun
(
- DAPNIA, Saclay
)
,
R. Calabrese
(
- Ferrara U. and
- INFN, Ferrara
)
,
G. Capon
(
- Frascati
)
,
R. Carlin
(
- INFN, Padua and
- Padua U.
)

et al.

- Nucl.Phys.B 411 (1994) 3-32
•
DOI:
- 10.1016/0550-3213(94)90052-3

Measurement of the electromagnetic form-factor of the proton in the timelike region

A. Antonelli
(
- Frascati
)
,
R. Baldini
(
- Frascati
)
,
M. Bertani
(
- Ferrara U. and
- INFN, Ferrara
)
,
M.E. Biagini
(
- Frascati
)
,
V. Bidoli
(
- INFN, Rome2 and
- Rome U., Tor Vergata
)

et al.

- Phys.Lett.B 334 (1994) 431-434,
- Phys. Lett. B334 (1994) 431-434. and Frascati INFN - LNF-94-032(P) (94/06,rec.Sep.) 8 p
•
DOI:
- 10.1016/0370-2693(94)90710-2

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