Observation of New Charmonium or Charmoniumlike States in <math display="inline"><msup><mi>B</mi><mo>+</mo></msup><mo stretchy="false">→</mo><msup><mi>D</mi><mrow><mo>*</mo><mo>±</mo></mrow></msup><msup><mi>D</mi><mo>∓</mo></msup><msup><mi>K</mi><mo>+</mo></msup></math> Decays

Aaij, Roel; Abdelmotteleb, Ahmed Sameh Wagih; Abellan Beteta, Carlos; Abudinén, Fernando Jesus; Ackernley, Thomas; Adefisoye, A.A.; Adefisoye, Ayomide Matthew; Adeva, Bernardo; Adinolfi, Marco; Adlarson, Patrik Harri

doi:10.1103/PhysRevLett.133.131902

Observation of New Charmonium or Charmoniumlike States in $B^{+} \to D^{* \pm} D^{\mp} K^{+}$ Decays

LHCb

Collaboration

Jun 5, 2024

14 pages

Published in:

Phys.Rev.Lett. 133 (2024) 13, 131902

Published: Sep 27, 2024

e-Print:

2406.03156 [hep-ex]

DOI:

10.1103/PhysRevLett.133.131902 (publication)

Report number:

LHCb-PAPER-2023-047,
CERN-EP-2024-096

Experiments:

CERN-LHC-LHCb

View in:

reference search25 citations

Citations per year

Abstract: (APS)

A study of resonant structures in

B^{+} \to D^{* +} D^{-} K^{+}

and

B^{+} \to D^{* -} D^{+} K^{+}

decays is performed, using proton-proton collision data at center-of-mass energies of

\sqrt{s} = 7

, 8, and 13 TeV recorded by the LHCb experiment, corresponding to an integrated luminosity of

9 {fb}^{- 1}

. A simultaneous amplitude fit is performed to the two channels with contributions from resonances decaying to

D^{* -} D^{+}

and

D^{* +} D^{-}

states linked by

C

parity. This procedure allows the

C

parities of resonances in the

D^{* \pm} D^{\mp}

mass spectra to be determined. Four charmonium or charmoniumlike states are observed decaying into

D^{* \pm} D^{\mp}

:

η_{c} (3945)

,

h_{c} (4000)

,

χ_{c 1} (4010)

, and

h_{c} (4300)

, with quantum numbers

J^{P C}

equal to

0^{- +}

,

1^{+ -}

,

1^{+ +}

, and

1^{+ -}

, respectively. At least three of these states have not been observed previously. In addition, the existence of the

T_{\bar{c} \bar{s} 0}^{*} (2870)^{0}

and

T_{\bar{c} \bar{s} 1}^{*} (2900)^{0}

resonances in the

D^{-} K^{+}

mass spectrum, already observed in the

B^{+} \to D^{+} D^{-} K^{+}

decay, is confirmed in a different production channel.

Note:

All figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2023-047.html (LHCb public pages)

p p: scattering
p p: colliding beams
B+: hadronic decay
charmonium: hadroproduction
mass spectrum: (D*(2010)+ D-)
mass spectrum: (D*(2010)- D+)
mass spectrum: (D- K+)
spin: parity
quantum number
charmonium: hadron spectroscopy

References(49)

Figures(9)

[1]

A model-independent study of resonant structure in $B^+\to D^+D^-K^+$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 125 (2020) 242001
•
e-Print:
- 2009.00025
•
DOI:
- 10.1103/PhysRevLett.125.242001

[2]

Amplitude analysis of the $B^+\to D^+D^-K^+$ decay

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.D 102 (2020) 112003
•
e-Print:
- 2009.00026
•
DOI:
- 10.1103/PhysRevD.102.112003

[3]

Naming scheme for hadrons, . In Ref. [6], https://pdg.lbl.gov/2023/reviews/rpp2023-rev-naming-scheme-hadrons.pdf

C. Amsler
,
E. Pianori
,
D.J. Robinson
,
R.L. Workman

[4]

First Observation of a Doubly Charged Tetraquark and Its Neutral Partner

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 131 (2023) 4, 041902
•
e-Print:
- 2212.02716
•
DOI:
- 10.1103/PhysRevLett.131.041902

[5]

Amplitude analysis of $B^{0} \to {\bar{D}}^{0} D_{s}^{+} π^{-}$ and $B^{+} \to D^{-} D_{s}^{+} π^{+}$ decays

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.D 108 (2023) 1, 012017
•
e-Print:
- 2212.02717
•
DOI:
- 10.1103/PhysRevD.108.012017

[6]

Review of Particle Physics

R.L. Workman
(
- George Washington U.
)
,
V.D. Burkert
(
- Jefferson Lab
)
,
V. Crede
(
- Florida State U.
)
,
E. Klempt
(
- Bonn U., HISKP
)
,
U. Thoma
(
- Bonn U., HISKP
)

et al.

- PTEP 2022 (2022) 083C01
•
DOI:
- 10.1093/ptep/ptac097

[7]

The $XYZ$ states: experimental and theoretical status and perspectives

Nora Brambilla
(
- Munich, Tech. U. and
- TUM-IAS, Munich
)
,
Simon Eidelman
(
- Novosibirsk, IYF and
- Novosibirsk State U.
)
,
Christoph Hanhart
(
- Julich, Forschungszentrum
)
,
Alexey Nefediev
(
- LPI, Moscow (main) and
- Moscow, MIPT and
- Moscow Phys. Eng. Inst.
)
,
Cheng-Ping Shen
(
- Fudan U., Shanghai and
- Beihang U.
)

et al.

- Phys.Rept. 873 (2020) 1-154
•
e-Print:
- 1907.07583
•
DOI:
- 10.1016/j.physrep.2020.05.001

[8]

Nonstandard heavy mesons and baryons: Experimental evidence

Stephen Lars Olsen
(
- IBS, Daejeon, CUP
)
,
Tomasz Skwarnicki
(
- Syracuse U.
)
,
Daria Zieminska
(
- Indiana U.
)

- Rev.Mod.Phys. 90 (2018) 1, 015003
•
e-Print:
- 1708.04012
•
DOI:
- 10.1103/RevModPhys.90.015003

[9]

Observation of a new charmonium state in double charmonium production in e+ e- annihilation at s**(1/2) ~ 10.6-GeV

Belle

Collaboration

•

Kazuo Abe
(
- KEK, Tsukuba
)

et al.

- Phys.Rev.Lett. 98 (2007) 082001
•
e-Print:
- hep-ex/0507019
•
DOI:
- 10.1103/PhysRevLett.98.082001

[10]

Production of New Charmoniumlike States in e+ e- --> J/psi D() anti-D() at s**(1/2) ~ 10. GeV

Belle

Collaboration

•

P. Pakhlov
(
- Moscow, ITEP
)

et al.

- Phys.Rev.Lett. 100 (2008) 202001
•
e-Print:
- 0708.3812
•
DOI:
- 10.1103/PhysRevLett.100.202001

[11]

Observation of a Neutral Structure near the $D\bar{D}^{}$ Mass Threshold in $e^{+}e^{-}\to (D \bar{D}^)^0\pi^0$ at $\sqrt{s}$ = 4.226 and 4.257 GeV

BESIII

Collaboration

•

M. Ablikim
(
- Beijing, Inst. High Energy Phys.
)

et al.

- Phys.Rev.Lett. 115 (2015) 22, 222002
•
e-Print:
- 1509.05620
•
DOI:
- 10.1103/PhysRevLett.115.222002

[12]

The LHCb Detector at the LHC

LHCb

Collaboration

•

A.Augusto Alves, Jr.
(
- Rio de Janeiro, CBPF
)

et al.

- JINST 3 (2008) S08005
•
DOI:
- 10.1088/1748-0221/3/08/S08005

[13]

LHCb Detector Performance

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Int.J.Mod.Phys.A 30 (2015) 07, 1530022
•
e-Print:
- 1412.6352
•
DOI:
- 10.1142/S0217751X15300227

[14]

A Brief Introduction to PYTHIA 8.1

Torbjorn Sjostrand
(
- CERN and
- Lund U.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- CERN and
- Fermilab
)

- Comput.Phys.Commun. 178 (2008) 852-867
•
e-Print:
- 0710.3820
•
DOI:
- 10.1016/j.cpc.2008.01.036

[14]

PYTHIA 6.4 Physics and Manual

Torbjorn Sjostrand
(
- Lund U., Dept. Theor. Phys.
)
,
Stephen Mrenna
(
- Fermilab
)
,
Peter Z. Skands
(
- Fermilab
)

- JHEP 05 (2006) 026
•
e-Print:
- hep-ph/0603175
•
DOI:
- 10.1088/1126-6708/2006/05/026

[15]

Handling of the generation of primary events in Gauss, the LHCb simulation framework

LHCb

Collaboration

•

I. Belyaev
(
- NIKHEF, Amsterdam and
- Moscow, ITEP
)

et al.

- J.Phys.Conf.Ser. 331 (2011) 032047
•
DOI:
- 10.1088/1742-6596/331/3/032047

[16]

The EvtGen particle decay simulation package

D.J. Lange
(
- LLNL, Livermore
)

- Nucl.Instrum.Meth.A 462 (2001) 152-155
•
DOI:
- 10.1016/S0168-9002(01)00089-4

[17]

PHOTOS interface in C++: Technical and Physics Documentation

- Comput.Phys.Commun. 199 (2016) 86-101
•
e-Print:
- 1011.0937
•
DOI:
- 10.1016/j.cpc.2015.09.013

[18]

Geant4 developments and applications

et al.

- IEEE Trans.Nucl.Sci. 53 (2006) 270
•
DOI:
- 10.1109/TNS.2006.869826

[18]

GEANT4 - A Simulation Toolkit

GEANT4

Collaboration

•

S. Agostinelli
(
- Genoa U.
)

et al.

- Nucl.Instrum.Meth.A 506 (2003) 250-303
•
DOI:
- 10.1016/S0168-9002(03)01368-8

[19]

The LHCb simulation application, Gauss: Design, evolution and experience

LHCb

Collaboration

•

M. Clemencic
(
- CERN
)

et al.

- J.Phys.Conf.Ser. 331 (2011) 032023
•
DOI:
- 10.1088/1742-6596/331/3/032023

[20]

Measurement of branching fraction ratios for $B^+\to D^{+}D^-K^+$ , $B^+\to D^{-}D^+K^+$ , and $B^0\to D^{*-}D^0K^+$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 12 (2020) 139
•
e-Print:
- 2005.10264
•
DOI:
- 10.1007/JHEP12(2020)139

[21]

(, Belmont, California, USA, )

L. Breiman
,
J.H. Friedman
,
R.A. Olshen
,
C.J. Stone

[22]

A Decision-Theoretic Generalization of On-Line Learning and an Application to Boosting

- J.Comput.Syst.Sci. 55 (1997) 1, 119-139
•
DOI:
- 10.1006/jcss.1997.1504

[23]

TMVA, the Toolkit for Multivariate Data Analysis with ROOT

H. Voss
(
- Heidelberg, Max Planck Inst.
)
,
Andreas Hocker
(
- CERN
)
,
J. Stelzer
(
- CERN
)
,
F. Tegenfeldt
(
- Iowa State U.
)

- PoS ACAT (2007) 040
•
DOI:
- 10.22323/1.050.0040

1-25 of 49
1
2
25 / page

Observation of New Charmonium or Charmoniumlike States in B+→D*±D∓K+ Decays

Citations per year

Observation of New Charmonium or Charmoniumlike States in $B^{+} \to D^{* \pm} D^{\mp} K^{+}$ Decays