Nature of X(3872) from its radiative decay - INSPIRE

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Nature of X(3872) from its radiative decay

Shuo-Ying Yu
(
- Beijing Normal U.
)
,
Xian-Wei Kang
(
- Beijing Normal U.
)

Aug 20, 2023

8 pages

Published in:

Phys.Lett.B 848 (2024) 138404

Published: Dec 18, 2023

e-Print:

2308.10219 [hep-ph]

DOI:

10.1016/j.physletb.2023.138404 (publication)

View in:

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Abstract: (Elsevier B.V.)

We study the radiative decay of

X (3872)

based on the assumption that

X (3872)

is regarded as a

c \overline{c}

charmonium with quantum number

J^{P C} = 1^{+ +}

(

J, P, C

represent the spin, parity and charge conjugation, respectively). The form factors of

X (3872)

transitions to

J / ψ γ

and

ψ^{'} γ

(

ψ^{'}

denotes

ψ (2 S)

throughout the paper) are calculated in the framework of the covariant light-front quark model. The phenomenological wave function of a meson depends on the parameter β, whose inverse essentially describes the confinement scale. In the present work, the parameters β for the vector

J / ψ

and

ψ^{'}

mesons will be determined through their decay constants, which are obtained from the experimental values of their partial decay widths to the electron-positron pair. For

X (3872)

, we determined the value of β by the decay width of

X (3872) \to ψ^{'} γ

. Then, we examined the width of

X (3872) \to J / ψ γ

in a manner of parameter-free prediction and compared it with the experimental value. As a result, an inconsistency or contradiction occurs between the widths of

X (3872) \to J / ψ γ

and

X (3872) \to ψ^{'} γ

. We thus conclude that

X (3872)

cannot be a pure

c \overline{c}

resonance and that other components are necessary in its wave function.

Note:

two columu, 8 pages, more clarifications and references added, accepted for publication in Phys. Letts. B

quark model: light front
scale: confinement
charmonium: mass
meson: wave function
X(3872)
radiative decay
parity
charge conjugation
psi(3685)
spin

References(38)

Figures(1)

[1]

Origin of the structures observed in $e^+e^-$ annihilation into multipion states around the $\bar pp$ threshold

Johann Haidenbauer
(
- IAS, Julich and
- JCHP, Julich
)
,
Christoph Hanhart
(
- IAS, Julich and
- JCHP, Julich
)
,
Xian-Wei Kang
(
- IAS, Julich and
- JCHP, Julich
)
,
Ulf-G. Meißner
(
- Bonn U., HISKP and
- IAS, Julich and
- JCHP, Julich
)

- Phys.Rev.D 92 (2015) 5, 054032
•
e-Print:
- 1506.08120
•
DOI:
- 10.1103/PhysRevD.92.054032

[2]

Threshold cusps and triangle singularities in hadronic reactions

Feng-Kun Guo
(
- Beijing, Inst. Theor. Phys. and
- Beijing, GUCAS
)
,
Xiao-Hai Liu
(
- Tianjin U.
)
,
Shuntaro Sakai
(
- Beijing, Inst. Theor. Phys.
)

- Prog.Part.Nucl.Phys. 112 (2020) 103757
•
e-Print:
- 1912.07030
•
DOI:
- 10.1016/j.ppnp.2020.103757

[3]

Observation of a narrow charmonium-like state in exclusive $B^\pm \to K^\pm \pi^+ \pi^- J/\psi$ decays

Belle

Collaboration

•

S.K. Choi
(
- Gyeongsang Natl. U.
)

et al.

- Phys.Rev.Lett. 91 (2003) 262001
•
e-Print:
- hep-ex/0309032
•
DOI:
- 10.1103/PhysRevLett.91.262001

[4]

Determination of the X(3872) meson quantum numbers

LHCb

Collaboration

•

R Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.Lett. 110 (2013) 222001
•
e-Print:
- 1302.6269
•
DOI:
- 10.1103/PhysRevLett.110.222001

[5]

Quantum numbers of the $X(3872)$ state and orbital angular momentum in its $\rho^0 J\psi$ decay

LHCb

Collaboration

•

Roel Aaij
(
- CERN
)

et al.

- Phys.Rev.D 92 (2015) 1, 011102
•
e-Print:
- 1504.06339
•
DOI:
- 10.1103/PhysRevD.92.011102

[6]

Study of Open-Charm Decays and Radiative Transitions of the $X(3872)$

BESIII

Collaboration

•

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

et al.

- Phys.Rev.Lett. 124 (2020) 24, 242001
•
e-Print:
- 2001.01156
•
DOI:
- 10.1103/PhysRevLett.124.242001

[7]

Study of the $\psi_2(3823)$ and $\chi_{c1}(3872)$ states in $B^+ \rightarrow \left( J\psi\pi^+\pi^-\right)K^+$ decays

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- JHEP 08 (2020) 123
•
e-Print:
- 2005.13422
•
DOI:
- 10.1007/JHEP08(2020)123

[8]

Study of $e^+e^- \to \gamma \omega J/\psi$ and Observation of $X(3872) \to \omega J/\psi$

BESIII

Collaboration

•

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

et al.

- Phys.Rev.Lett. 122 (2019) 23, 232002
•
e-Print:
- 1903.04695
•
DOI:
- 10.1103/PhysRevLett.122.232002

[9]

Observation of the decay $X(3872) \to \pi^0 \chi_{c1}(1P)$

BESIII

Collaboration

•

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

et al.

- Phys.Rev.Lett. 122 (2019) 20, 202001
•
e-Print:
- 1901.03992
•
DOI:
- 10.1103/PhysRevLett.122.202001

[10]

Observation of $X(3872)\to J/\psi \gamma$ and search for $X(3872)\to\psi'\gamma$ in B decays

Belle

Collaboration

•

V. Bhardwaj
(
- Panjab U.
)

et al.

- Phys.Rev.Lett. 107 (2011) 091803
•
e-Print:
- 1105.0177
•
DOI:
- 10.1103/PhysRevLett.107.091803

[11]

Evidence for the decay $X(3872)\rightarrow\psi(2S)\gamma$

LHCb

Collaboration

•

Roel Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Nucl.Phys.B 886 (2014) 665-680
•
e-Print:
- 1404.0275
•
DOI:
- 10.1016/j.nuclphysb.2014.06.011

[12]

R.L. Workman

- PTEP 2022 (2022) 083

[13]

Evidence for $X(3872) \to \psi_{2S} \gamma$ in $B^\pm \to X_{3872} K^\pm$ decays, and a study of $B \to c \bar{c} \gamma K$

BaBar

Collaboration

•

Bernard Aubert
(
- Annecy, LAPP
)

et al.

- Phys.Rev.Lett. 102 (2009) 132001
•
e-Print:
- 0809.0042
•
DOI:
- 10.1103/PhysRevLett.102.132001

[14]

Study of the lineshape of the $\chi_{c1}(3872)$ state

LHCb

Collaboration

•

R. Aaij
(
- NIKHEF, Amsterdam
)

et al.

- Phys.Rev.D 102 (2020) 9, 092005
•
e-Print:
- 2005.13419
•
DOI:
- 10.1103/PhysRevD.102.092005

[15]

Different pole structures in line shapes of the $X(3872)$

Xian-Wei Kang
(
- Murcia U.
)
,
J.A. Oller
(
- Murcia U.
)

- Eur.Phys.J.C 77 (2017) 6, 399
•
e-Print:
- 1612.08420
•
DOI:
- 10.1140/epjc/s10052-017-4961-z

[16]

Generalization of Weinberg’s compositeness relations

Yan Li
(
- Beijing, GUCAS
)
,
Feng-Kun Guo
(
- Beijing, GUCAS and
- Beijing, Inst. Theor. Phys.
)
,
Jin-Yi Pang
(
- Shanghai U. Sci. Tech.
)
,
Jia-Jun Wu
(
- Beijing, GUCAS
)

- Phys.Rev.D 105 (2022) 7, L071502
•
e-Print:
- 2110.02766
•
DOI:
- 10.1103/PhysRevD.105.L071502

[17]

Evidence that the a(0)(980) and f(0)(980) are not elementary particles

V. Baru
(
- Moscow, ITEP and
- Julich, Forschungszentrum
)
,
J. Haidenbauer
(
- Julich, Forschungszentrum
)
,
C. Hanhart
(
- Julich, Forschungszentrum
)
,
Yu. Kalashnikova
(
- Moscow, ITEP
)
,
Alexander Evgenyevich Kudryavtsev
(
- Moscow, ITEP
)

- Phys.Lett.B 586 (2004) 53-61
•
e-Print:
- hep-ph/0308129
•
DOI:
- 10.1016/j.physletb.2004.01.088

[18]

Tomona Kinugawa, Tetsuo Hyodo, Compositeness of Tcc and X(3872) with decay and coupled-channel effects, 3 2023

[19]

Hadronic molecules

Feng-Kun Guo
(
- Beijing, Inst. Theor. Phys.
)
,
Christoph Hanhart
(
- Julich, Forschungszentrum
)
,
Ulf-G. Meißner
(
- Bonn U., ITKP and
- U. Bonn, Phys. Inst., BCTP and
- IAS, Julich and
- JCHP, Julich
)
,
Qian Wang
(
- Bonn U., ITKP
)
,
Qiang Zhao
(
)

et al.

- Rev.Mod.Phys. 90 (2018) 1, 015004,
- Rev.Mod.Phys. 94 (2022) 2, 029901 (erratum)
•
e-Print:
- 1705.00141
•
DOI:
- 10.1103/RevModPhys.90.015004

[20]

R.L. Workman

- PTEP 2022 (2022) 083

[21]

Relativistic constituent quark model of electroweak properties of light mesons

Wolfgang Jaus
(
- Zurich U.
)

- Phys.Rev.D 44 (1991) 2851-2859
•
DOI:
- 10.1103/PhysRevD.44.2851

[22]

Semileptonic Decays of B and d Mesons in the Light Front Formalism

W. Jaus
(
- Zurich U.
)

- Phys.Rev.D 41 (1990) 3394
•
DOI:
- 10.1103/PhysRevD.41.3394

[23]

Semileptonic, radiative, and pionic decays of B, B* and D, D* mesons

Wolfgang Jaus
(
- Zurich U.
)

- Phys.Rev.D 53 (1996) 1349,
- Phys.Rev.D 54 (1996) 5904 (erratum)
•
DOI:
- 10.1103/PhysRevD.53.1349

[24]

Covariant analysis of the light front quark model

W. Jaus
(
- Zurich U.
)

- Phys.Rev.D 60 (1999) 054026
•
DOI:
- 10.1103/PhysRevD.60.054026

[25]

Covariant light front approach for s wave and p wave mesons: Its application to decay constants and form-factors

- Phys.Rev.D 69 (2004) 074025
•
e-Print:
- hep-ph/0310359
•
DOI:
- 10.1103/PhysRevD.69.074025

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