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The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo[electronic resource] /

紀錄類型:	書目-語言資料,印刷品 : Monograph/item
杜威分類號:	539.7217
書名/作者:	The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo/ by Christopher Walz.
作者:	Walz, Christopher.
出版者:	Cham : : Springer International Publishing :, 2016.
面頁冊數:	xv, 160 p. : : ill., digital ;; 24 cm.
Contained By:	Springer eBooks
標題:	Photons - Scattering.
標題:	Radioactive decay.
標題:	Nuclear isomers.
標題:	Physics.
標題:	Nuclear Physics, Heavy Ions, Hadrons.
標題:	Theoretical, Mathematical and Computational Physics.
ISBN:	9783319271835
ISBN:	9783319271811
內容註:	Introduction -- Theoretical Background of the Two-Photon Decay Experiment -- Experimental Setup of the Two-Photon Decay Experiment -- Data Analysis and Results of the Two-Photon Decay Experiment -- Theoretical Background of the Proton Scattering Experiments -- The Experimental Setup at iThemba LABS -- Data Analysis and Results of the Proton Scattering Experiments -- Interpretation -- Summary & Outlook.
摘要、提要註:	This work focuses on new electromagnetic decay mode in nuclear physics. The first part of the thesis presents the observation of the two-photon decay for a transition where the one-photon decay is allowed. In the second part, so called quadrupole mixed-symmetry is investigated in inelastic proton scattering experiments. In 1930 Nobel-prize winner M. Goeppert-Mayer was the first to discuss the two-photon decay of an exited state in her doctoral thesis. This process has been observed many times in atomic physics. However in nuclear physics data is sparse. Here this decay mode has only been observed for the special case of a transition between nuclear states with spin and parity quantum number 0+. For such a transition, the one-photon decay - the main experimental obstacle to observe the two-photon decay - is forbidden. Furthermore, the energy sharing and angular distributions were measured, allowing conclusions to be drawn about the multipoles contributing to the two-photon transition. Quadrupole mixed-symmetry states are an excitation mode in spherical nuclei which are sensitive to the strength of the quadrupole residual interaction. A new signature for these interesting states is presented which allows identification of mixed-symmetry states independently of electromagnetic transition strengths. Furthermore this signature represents a valuable additional observable to test model predictions for mixed-symmetry states.
電子資源:	http://dx.doi.org/10.1007/978-3-319-27183-5

The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo[electronic resource] /
Walz, Christopher.

The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo[electronic resource] /by Christopher Walz. - Cham :Springer International Publishing :2016. - xv, 160 p. :ill., digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- Theoretical Background of the Two-Photon Decay Experiment -- Experimental Setup of the Two-Photon Decay Experiment -- Data Analysis and Results of the Two-Photon Decay Experiment -- Theoretical Background of the Proton Scattering Experiments -- The Experimental Setup at iThemba LABS -- Data Analysis and Results of the Proton Scattering Experiments -- Interpretation -- Summary & Outlook.

This work focuses on new electromagnetic decay mode in nuclear physics. The first part of the thesis presents the observation of the two-photon decay for a transition where the one-photon decay is allowed. In the second part, so called quadrupole mixed-symmetry is investigated in inelastic proton scattering experiments. In 1930 Nobel-prize winner M. Goeppert-Mayer was the first to discuss the two-photon decay of an exited state in her doctoral thesis. This process has been observed many times in atomic physics. However in nuclear physics data is sparse. Here this decay mode has only been observed for the special case of a transition between nuclear states with spin and parity quantum number 0+. For such a transition, the one-photon decay - the main experimental obstacle to observe the two-photon decay - is forbidden. Furthermore, the energy sharing and angular distributions were measured, allowing conclusions to be drawn about the multipoles contributing to the two-photon transition. Quadrupole mixed-symmetry states are an excitation mode in spherical nuclei which are sensitive to the strength of the quadrupole residual interaction. A new signature for these interesting states is presented which allows identification of mixed-symmetry states independently of electromagnetic transition strengths. Furthermore this signature represents a valuable additional observable to test model predictions for mixed-symmetry states.

ISBN: 9783319271835

Standard No.: 10.1007/978-3-319-27183-5doiSubjects--Topical Terms:

590512
Photons
--Scattering.

LC Class. No.: QC793.5.P428

Dewey Class. No.: 539.7217

The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo[electronic resource] /
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245 1 4 $a The two-photon decay of the 11-/2 isomer of 137Ba and mixed-symmetry States of 92,94Zr and 94Mo $h [electronic resource] / $c by Christopher Walz.
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505 0 $a Introduction -- Theoretical Background of the Two-Photon Decay Experiment -- Experimental Setup of the Two-Photon Decay Experiment -- Data Analysis and Results of the Two-Photon Decay Experiment -- Theoretical Background of the Proton Scattering Experiments -- The Experimental Setup at iThemba LABS -- Data Analysis and Results of the Proton Scattering Experiments -- Interpretation -- Summary & Outlook.
520 $a This work focuses on new electromagnetic decay mode in nuclear physics. The first part of the thesis presents the observation of the two-photon decay for a transition where the one-photon decay is allowed. In the second part, so called quadrupole mixed-symmetry is investigated in inelastic proton scattering experiments. In 1930 Nobel-prize winner M. Goeppert-Mayer was the first to discuss the two-photon decay of an exited state in her doctoral thesis. This process has been observed many times in atomic physics. However in nuclear physics data is sparse. Here this decay mode has only been observed for the special case of a transition between nuclear states with spin and parity quantum number 0+. For such a transition, the one-photon decay - the main experimental obstacle to observe the two-photon decay - is forbidden. Furthermore, the energy sharing and angular distributions were measured, allowing conclusions to be drawn about the multipoles contributing to the two-photon transition. Quadrupole mixed-symmetry states are an excitation mode in spherical nuclei which are sensitive to the strength of the quadrupole residual interaction. A new signature for these interesting states is presented which allows identification of mixed-symmetry states independently of electromagnetic transition strengths. Furthermore this signature represents a valuable additional observable to test model predictions for mixed-symmetry states.
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