Abstract
We discuss the electroproduction of a pseudoscalar (0-+) meson or a scalar (0++) meson off the scalar target. The most general formulation of the differential cross section for the 0-+ or 0++ meson process involves only one or two hadronic form factors, respectively, on a scalar target. The Rosenbluth-type separation of the differential cross section provides the explicit relation between the hadronic form factors and the different parts of the differential cross section in a completely model-independent manner. The absence of the beam spin asymmetry for the pseudoscalar meson production provides a benchmark for the experimental data analysis. The measurement of the beam spin asymmetry for the scalar meson production may also provide a unique opportunity not only to explore the imaginary part of the hadronic amplitude in the general formulation but also to examine the significance of the chiral-odd generalized parton distribution (GPD) contribution in the leading-twist GPD formulation.
| Original language | English |
|---|---|
| Article number | 116008 |
| Pages (from-to) | 1-7 |
| Number of pages | 7 |
| Journal | Physical Review D |
| Volume | 99 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 12 Jun 2019 |
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Beam spin asymmetry in the electroproduction of a pseudoscalar meson or a scalar meson off the scalar target. / Ji, Chueng Ryong; Choi, Ho Meoyng; Lundeen, Andrew; Bakker, Bernard L.G.
In: Physical Review D, Vol. 99, No. 11, 116008, 12.06.2019, p. 1-7.Research output: Contribution to Journal › Article › Academic › peer-review
TY - JOUR
T1 - Beam spin asymmetry in the electroproduction of a pseudoscalar meson or a scalar meson off the scalar target
AU - Ji, Chueng Ryong
AU - Choi, Ho Meoyng
AU - Lundeen, Andrew
AU - Bakker, Bernard L.G.
PY - 2019/6/12
Y1 - 2019/6/12
N2 - We discuss the electroproduction of a pseudoscalar (0-+) meson or a scalar (0++) meson off the scalar target. The most general formulation of the differential cross section for the 0-+ or 0++ meson process involves only one or two hadronic form factors, respectively, on a scalar target. The Rosenbluth-type separation of the differential cross section provides the explicit relation between the hadronic form factors and the different parts of the differential cross section in a completely model-independent manner. The absence of the beam spin asymmetry for the pseudoscalar meson production provides a benchmark for the experimental data analysis. The measurement of the beam spin asymmetry for the scalar meson production may also provide a unique opportunity not only to explore the imaginary part of the hadronic amplitude in the general formulation but also to examine the significance of the chiral-odd generalized parton distribution (GPD) contribution in the leading-twist GPD formulation.
AB - We discuss the electroproduction of a pseudoscalar (0-+) meson or a scalar (0++) meson off the scalar target. The most general formulation of the differential cross section for the 0-+ or 0++ meson process involves only one or two hadronic form factors, respectively, on a scalar target. The Rosenbluth-type separation of the differential cross section provides the explicit relation between the hadronic form factors and the different parts of the differential cross section in a completely model-independent manner. The absence of the beam spin asymmetry for the pseudoscalar meson production provides a benchmark for the experimental data analysis. The measurement of the beam spin asymmetry for the scalar meson production may also provide a unique opportunity not only to explore the imaginary part of the hadronic amplitude in the general formulation but also to examine the significance of the chiral-odd generalized parton distribution (GPD) contribution in the leading-twist GPD formulation.
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U2 - 10.1103/PhysRevD.99.116008
DO - 10.1103/PhysRevD.99.116008
M3 - Article
VL - 99
SP - 1
EP - 7
JO - Physical Review D
JF - Physical Review D
SN - 2470-0010
IS - 11
M1 - 116008
ER -