Lattice study of J/Ψ form factors with twisted boundary conditions

. We present a lattice calculation for the electromagnetic form factors of J / Ψ by using N f = 2 twisted mass gauge field configurations. We apply twisted boundary conditions to compute correlation functions at small values of momentum transfer that are difficult to access with periodic boundary co...

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Bibliographic Details
Published inThe European physical journal. A, Hadrons and nuclei Vol. 54; no. 11; pp. 1 - 9
Main Authors Li, Ning, Wu, Ya-Jie, Gao, Tan-Biao
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer Berlin Heidelberg 2018
Springer Nature B.V
Subjects
Boundary conditions
Form factors
Hadrons
Heavy Ions
Mathematical analysis
Momentum transfer
Nuclear Fusion
Nuclear Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quadrupoles
Regular Article - Theoretical Physics
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Summary:. We present a lattice calculation for the electromagnetic form factors of J / Ψ by using N f = 2 twisted mass gauge field configurations. We apply twisted boundary conditions to compute correlation functions at small values of momentum transfer that are difficult to access with periodic boundary conditions. The electromagnetic form factors with more small four-momentum transfer are determined, and further the charge radius and the quadrupole moment for J / Ψ are fitted, respectively.
ISSN:1434-6001
1434-601X
DOI:10.1140/epja/i2018-12627-x