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Title: Production of X ( 3872 ) and a photon in e + e annihilation

Abstract

If the $X(3872)$ is a weakly bound charm-meson molecule, it can be produced in $e^+ e^-$ annihilation by the creation of $$D^{*0} \bar D^{*0}$$ from a virtual photon followed by the rescattering of the P-wave charm-meson pair into the $$X$$ and a photon. A triangle singularity produces a narrow peak in the cross section for $$e^+ e^- \to X \gamma$$ about 2.2 MeV above the $$D^{*0} \bar{D}^{*0}$$ threshold. We predict the normalized cross section in the region of the peak. We show that the absorptive contribution to the cross section for $$e^+ e^- \to D^{*0} \bar D^{*0} \to X \gamma$$, which was calculated previously by Dubynskiy and Voloshin, does not give a good approximation to the peak from the triangle singularity.

Authors:
; ORCiD logo;
Publication Date:
Research Org.:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP); National Science Foundation (NSF)
OSTI Identifier:
1595516
Alternate Identifier(s):
OSTI ID: 1782853
Grant/Contract Number:  
SC0011726; PHY-1607190
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 1; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Braaten, Eric, He, Li-Ping, and Ingles, Kevin. Production of X ( 3872 ) and a photon in e + e − annihilation. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.014021.
Braaten, Eric, He, Li-Ping, & Ingles, Kevin. Production of X ( 3872 ) and a photon in e + e − annihilation. United States. https://doi.org/10.1103/PhysRevD.101.014021
Braaten, Eric, He, Li-Ping, and Ingles, Kevin. Tue . "Production of X ( 3872 ) and a photon in e + e − annihilation". United States. https://doi.org/10.1103/PhysRevD.101.014021.
@article{osti_1595516,
title = {Production of X ( 3872 ) and a photon in e + e − annihilation},
author = {Braaten, Eric and He, Li-Ping and Ingles, Kevin},
abstractNote = {If the $X(3872)$ is a weakly bound charm-meson molecule, it can be produced in $e^+ e^-$ annihilation by the creation of $D^{*0} \bar D^{*0}$ from a virtual photon followed by the rescattering of the P-wave charm-meson pair into the $X$ and a photon. A triangle singularity produces a narrow peak in the cross section for $e^+ e^- \to X \gamma$ about 2.2 MeV above the $D^{*0} \bar{D}^{*0}$ threshold. We predict the normalized cross section in the region of the peak. We show that the absorptive contribution to the cross section for $e^+ e^- \to D^{*0} \bar D^{*0} \to X \gamma$, which was calculated previously by Dubynskiy and Voloshin, does not give a good approximation to the peak from the triangle singularity.},
doi = {10.1103/PhysRevD.101.014021},
journal = {Physical Review D},
number = 1,
volume = 101,
place = {United States},
year = {Tue Jan 28 00:00:00 EST 2020},
month = {Tue Jan 28 00:00:00 EST 2020}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.101.014021

Citation Metrics:
Cited by: 7 works
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Works referenced in this record:

Multiquark States
journal, October 2018


Searching for observable effects induced by anomalous triangle singularities
journal, February 2016


Dalitz plot distributions in presence of triangle singularities
journal, June 2016


Measurement of the Near-Threshold e + e D ( * ) ± D ( * ) Cross Section using Initial-State Radiation
journal, February 2007


Study of e + e γ ω J / ψ and Observation of X ( 3872 ) ω J / ψ
journal, June 2019


e + e γ X ( 3872 ) near the D * D ¯ * threshold
journal, November 2006


Hadronic molecules
journal, February 2018


Hadronic and radiative D * widths
journal, August 2013


Nonstandard heavy mesons and baryons: Experimental evidence
journal, February 2018


Scattering of an ultrasoft pion and the X ( 3872 )
journal, August 2010


Observation of a Narrow Charmoniumlike State in Exclusive B ± K ± π + π J / ψ Decays
journal, December 2003


Universality in few-body systems with large scattering length
journal, June 2006


Production of X ( 3872 ) accompanied by a pion in B meson decay
journal, October 2019


P -wave coupled channel effects in electron-positron annihilation
journal, November 2016


Observation of e + e γ X ( 3872 ) at BESIII
journal, March 2014


Novel Method for Precisely Measuring the X ( 3872 ) Mass
journal, May 2019


Review of Particle Physics
journal, August 2018


Exclusive open-charm near-threshold cross sections in a coupled-channel approach
journal, January 2017


Exotics: Heavy pentaquarks and tetraquarks
journal, November 2017

  • Ali, Ahmed; Lange, Jens Sören; Stone, Sheldon
  • Progress in Particle and Nuclear Physics, Vol. 97
  • DOI: 10.1016/j.ppnp.2017.08.003

X(3872) DIAGNOSTICS WITH DECAYS TO $D{\bar D}\gamma$
journal, March 2006


Triangle singularities and XYZ quarkonium peaks
journal, July 2015


Pion interactions in the X ( 3872 )
journal, August 2007


Determination of the X ( 3872 ) Meson Quantum Numbers
journal, May 2013


Galilean-invariant effective field theory for the X ( 3872 )
journal, June 2015


Measurement of the near-threshold e + e D D ¯ cross section using initial-state radiation
journal, January 2008


Heavy-quark QCD exotica
journal, March 2017

  • Lebed, Richard F.; Mitchell, Ryan E.; Swanson, Eric S.
  • Progress in Particle and Nuclear Physics, Vol. 93
  • DOI: 10.1016/j.ppnp.2016.11.003

Multiquark resonances
journal, January 2017


Exotic hadrons with heavy flavors: X , Y , Z , and related states
journal, June 2016

  • Hosaka, Atsushi; Iijima, Toru; Miyabayashi, Kenkichi
  • Progress of Theoretical and Experimental Physics, Vol. 2016, Issue 6
  • DOI: 10.1093/ptep/ptw045

The hidden-charm pentaquark and tetraquark states
journal, June 2016


Production of X ( 3872 ) accompanied by a soft pion at hadron colliders
journal, November 2019


Triangle singularity in the production of X ( 3872 ) and a photon in e + e annihilation
journal, August 2019


A Relativistic Equation for Bound-State Problems
journal, December 1951


The XYZ states revisited
journal, July 2018