Search for prompt production of pentaquarks in charm hadron final states

Aaij, Roel; Abdelmotteleb, Ahmed Sameh Wagih; Abellan Beteta, Carlos; Abudinén, Fernando Jesus; Ackernley, Thomas; Adeva, Bernardo; Adinolfi, Marco; Adlarson, Patrik Harri; Afsharnia, Hossein; Agapopoulou, Christina

doi:10.1103/PhysRevD.110.032001

Search for prompt production of pentaquarks in charm hadron final states

LHCb

Collaboration

Apr 10, 2024

19 pages

Published in:

Phys.Rev.D 110 (2024) 3, 032001

Published: Aug 1, 2024

e-Print:

2404.07131 [hep-ex]

DOI:

10.1103/PhysRevD.110.032001 (publication)

Report number:

LHCb-PAPER-2023-018,
CERN-EP-2024-071

Experiments:

CERN-LHC-LHCb

View in:

reference search10 citations

Citations per year

Abstract: (APS)

A search for hidden-charm pentaquark states decaying to a range of

Σ_{c} \bar{D}

and

Λ_{c}^{+} \bar{D}

final states, as well as doubly charmed pentaquark states to

Σ_{c} D

and

Λ_{c}^{+} D

, is made using samples of proton-proton collision data corresponding to an integrated luminosity of

5.7 {fb}^{- 1}

recorded by the LHCb detector at

\sqrt{s} = 13 TeV

. Since no significant signals are found, upper limits are set on the pentaquark yields relative to that of the

Λ_{c}^{+}

baryon in the

Λ_{c}^{+} \to p K^{-} π^{+}

decay mode. The known pentaquark states are also investigated, and their signal yields are found to be consistent with zero in all cases.

Note:

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-018.html (LHCb public pages)

p p: colliding beams
hadron: final state
pentaquark: yield
pentaquark: direct production
p p: scattering
resonance: production
resonance: exotic
Lambda/c+: hadronic decay
mass spectrum: (Lambda/c+ pi+ D-)
D

References(42)

Figures(0)

[1]

A Schematic Model of Baryons and Mesons

Murray Gell-Mann
(
- Caltech
)

- Phys.Lett. 8 (1964) 214-215,
- Also in *Lichtenberg, D.B. (ed.), Rosen, S.P., (ed.), Developments In The Quark Theory Of Hadrons, Vol. 1*, 20-21
•
DOI:
- 10.1016/S0031-9163(64)92001-3

[2]

An SU(3) model for strong interaction symmetry and its breaking. Version 2

G. Zweig
(
- CERN
)

- Developments in the Quark Theory of Hadrons, Volume 1. Edited by D. Lichtenberg and S. Rosen. pp. 22-101
•
DOI:
- 10.17181/CERN-TH-412

[3]

Perhaps a Stable Dihyperon

Robert L. Jaffe
(
- SLAC and
- MIT, LNS
)

- Phys.Rev.Lett. 38 (1977) 195-198,
- Phys.Rev.Lett. 38 (1977) 617 (erratum)
•
DOI:
- 10.1103/PhysRevLett.38.195

[3]

Perhaps a Stable Dihyperon

Robert L. Jaffe
(
- SLAC and
- MIT, LNS
)

- Phys.Rev.Lett. 38 (1977) 195-198,
- Phys.Rev.Lett. 38 (1977) 617 (erratum)
•
DOI:
- 10.1103/PhysRevLett.38.195

[4]

A Model of Mesons with Constituent Gluons

D. Horn
(
- Caltech
)
,
J. Mandula
(
- MIT
)

- Phys.Rev.D 17 (1978) 898
•
DOI:
- 10.1103/PhysRevD.17.898

[5]

Advantages of the Color Octet Gluon Picture

- Phys.Lett.B 47 (1973) 365-368,
- Also in *Lichtenberg, D. B. (Ed.), Rosen, S. P. (Ed.): Developments In The Quark Theory Of Hadrons, Vol. 1*, 151-154
•
DOI:
- 10.1016/0370-2693(73)90625-4