Limits...
Measurements of the strong-interaction widths of the kaonic (3)He and (4)He 2p levels.

- Phys Lett B (2012)

Bottom Line: The widths of the kaonic (3)He and (4)He 2p states were determined to be [Formula: see text], and [Formula: see text], respectively.Both results are consistent with the theoretical predictions.The width of kaonic (4)He is much smaller than the value of [Formula: see text] determined by the experiments performed in the 70's and 80's, while the width of kaonic (3)He was determined for the first time.

View Article: PubMed Central - PubMed

ABSTRACT
The kaonic (3)He and (4)He X-rays emitted in the [Formula: see text] transitions were measured in the SIDDHARTA experiment. The widths of the kaonic (3)He and (4)He 2p states were determined to be [Formula: see text], and [Formula: see text], respectively. Both results are consistent with the theoretical predictions. The width of kaonic (4)He is much smaller than the value of [Formula: see text] determined by the experiments performed in the 70's and 80's, while the width of kaonic (3)He was determined for the first time.

No MeSH data available.


Related in: MedlinePlus

(a): The Gaussian width σ in the Voigt function at the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted, where the data of all the target materials were used. The fit curve using the function (1) is shown as a solid line, and the root-mean-square error of the fit as dotted lines. (b): The deviations from the fit line plotted for each target material separately: open circle (deuterium), filled circle (3He), and cross (4He). The curves show the uncertainty of the determination of the σ values in (a).
© Copyright Policy
Related In: Results  -  Collection

License
getmorefigures.php?uid=PMC3405488&req=5

fg0030: (a): The Gaussian width σ in the Voigt function at the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted, where the data of all the target materials were used. The fit curve using the function (1) is shown as a solid line, and the root-mean-square error of the fit as dotted lines. (b): The deviations from the fit line plotted for each target material separately: open circle (deuterium), filled circle (3He), and cross (4He). The curves show the uncertainty of the determination of the σ values in (a).

Mentions: The energy dependency of the energy resolution of the SDDs was evaluated from the peak widths. Fig. 3(a) shows the fit values of the Gaussian width σ in the Voigt function against the X-ray energy E, where the data of all the target materials were used. The peak positions of the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted. The value of at the X-ray energy E can be expressed as:(1)σ(E)=a+bE, using free parameters a and b. In Fig. 3(a), the fit curve using the function (1) is shown as a solid line and, as well, the root-mean-square error of the fit as dotted lines.


Measurements of the strong-interaction widths of the kaonic (3)He and (4)He 2p levels.

- Phys Lett B (2012)

(a): The Gaussian width σ in the Voigt function at the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted, where the data of all the target materials were used. The fit curve using the function (1) is shown as a solid line, and the root-mean-square error of the fit as dotted lines. (b): The deviations from the fit line plotted for each target material separately: open circle (deuterium), filled circle (3He), and cross (4He). The curves show the uncertainty of the determination of the σ values in (a).
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3405488&req=5

fg0030: (a): The Gaussian width σ in the Voigt function at the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted, where the data of all the target materials were used. The fit curve using the function (1) is shown as a solid line, and the root-mean-square error of the fit as dotted lines. (b): The deviations from the fit line plotted for each target material separately: open circle (deuterium), filled circle (3He), and cross (4He). The curves show the uncertainty of the determination of the σ values in (a).
Mentions: The energy dependency of the energy resolution of the SDDs was evaluated from the peak widths. Fig. 3(a) shows the fit values of the Gaussian width σ in the Voigt function against the X-ray energy E, where the data of all the target materials were used. The peak positions of the Ti Kα (4.5 keV), Cu Kα (8.0 keV), and Au Lα (9.6 keV) lines are plotted. The value of at the X-ray energy E can be expressed as:(1)σ(E)=a+bE, using free parameters a and b. In Fig. 3(a), the fit curve using the function (1) is shown as a solid line and, as well, the root-mean-square error of the fit as dotted lines.

Bottom Line: The widths of the kaonic (3)He and (4)He 2p states were determined to be [Formula: see text], and [Formula: see text], respectively.Both results are consistent with the theoretical predictions.The width of kaonic (4)He is much smaller than the value of [Formula: see text] determined by the experiments performed in the 70's and 80's, while the width of kaonic (3)He was determined for the first time.

View Article: PubMed Central - PubMed

ABSTRACT
The kaonic (3)He and (4)He X-rays emitted in the [Formula: see text] transitions were measured in the SIDDHARTA experiment. The widths of the kaonic (3)He and (4)He 2p states were determined to be [Formula: see text], and [Formula: see text], respectively. Both results are consistent with the theoretical predictions. The width of kaonic (4)He is much smaller than the value of [Formula: see text] determined by the experiments performed in the 70's and 80's, while the width of kaonic (3)He was determined for the first time.

No MeSH data available.


Related in: MedlinePlus