Enhancement of the laser-induced excitation probability of the hyperfine ground state of muonic hydrogen by a multipass cavity setup.
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| Title: | Enhancement of the laser-induced excitation probability of the hyperfine ground state of muonic hydrogen by a multipass cavity setup. |
|---|---|
| Authors: | Das, Rakesh Mohan1,2 (AUTHOR) rakesh.dasfpy@kiit.ac.in, Iwasaki, Masahiko3 (AUTHOR) |
| Source: | Applied Physics B: Lasers & Optics. Nov2023, Vol. 129 Issue 11, p1-7. 7p. |
| Subjects: | Mid-infrared lasers, Hyperfine coupling, Atomic hydrogen, Laser pulses, Proton accelerators, Hydrogen, Pulsed lasers, Spectral line broadening |
| Abstract: | We study the enhancement of the magnetic dipole induced excitation probability of the hyperfine ground state of Doppler-broadened muonic hydrogen ( p μ - ) by a nanosecond laser pulse in the mid-infrared range with Gaussian temporal shape such that the pulse bandwidth is broader than the Doppler width at 10 K. The enhancement is achieved by shrinking the cross-section of the laser pulse and placing the muonic hydrogen medium in a multipass cavity, while preserving the total irradiated target volume. We numerically solve a set of Maxwell–Schr o ¨ dinger equations to obtain the excitation probability and the total efficiency for various densities of the muonic hydrogen atomic medium and at various positions in the multipass cavity. For the typical range of densities of muonic hydrogen atoms at major proton accelerator facilities such as the J-PARC (density ∼ 10 5 cm - 3 ), the laser propagation effect is insignificant. For such cases, the total efficiency increases by an order of two for 100 reflections with a uniform polarization. If the density exceeds the value of 10 17 cm - 3 as might be in the future advances, the laser propagation effect has to be taken into account, and the total efficiency decreases with the number of reflections giving rise to a pulsed polarization of the beam. Our study can serve as a guideline for the development of a polarized muonic beam for a precise measurement of the ground state hyperfine splitting of muonic hydrogen, or for μ SR experiments. [ABSTRACT FROM AUTHOR] |
| Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
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| Header | DbId: egs DbLabel: Engineering Source An: 173724714 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Enhancement of the laser-induced excitation probability of the hyperfine ground state of muonic hydrogen by a multipass cavity setup. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Das%2C+Rakesh+Mohan%22">Das, Rakesh Mohan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> rakesh.dasfpy@kiit.ac.in</i><br /><searchLink fieldCode="AR" term="%22Iwasaki%2C+Masahiko%22">Iwasaki, Masahiko</searchLink><relatesTo>3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Applied+Physics+B%3A+Lasers+%26+Optics%22">Applied Physics B: Lasers & Optics</searchLink>. Nov2023, Vol. 129 Issue 11, p1-7. 7p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Mid-infrared+lasers%22">Mid-infrared lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Hyperfine+coupling%22">Hyperfine coupling</searchLink><br /><searchLink fieldCode="DE" term="%22Atomic+hydrogen%22">Atomic hydrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+pulses%22">Laser pulses</searchLink><br /><searchLink fieldCode="DE" term="%22Proton+accelerators%22">Proton accelerators</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen%22">Hydrogen</searchLink><br /><searchLink fieldCode="DE" term="%22Pulsed+lasers%22">Pulsed lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Spectral+line+broadening%22">Spectral line broadening</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We study the enhancement of the magnetic dipole induced excitation probability of the hyperfine ground state of Doppler-broadened muonic hydrogen ( p μ - ) by a nanosecond laser pulse in the mid-infrared range with Gaussian temporal shape such that the pulse bandwidth is broader than the Doppler width at 10 K. The enhancement is achieved by shrinking the cross-section of the laser pulse and placing the muonic hydrogen medium in a multipass cavity, while preserving the total irradiated target volume. We numerically solve a set of Maxwell–Schr o ¨ dinger equations to obtain the excitation probability and the total efficiency for various densities of the muonic hydrogen atomic medium and at various positions in the multipass cavity. For the typical range of densities of muonic hydrogen atoms at major proton accelerator facilities such as the J-PARC (density ∼ 10 5 cm - 3 ), the laser propagation effect is insignificant. For such cases, the total efficiency increases by an order of two for 100 reflections with a uniform polarization. If the density exceeds the value of 10 17 cm - 3 as might be in the future advances, the laser propagation effect has to be taken into account, and the total efficiency decreases with the number of reflections giving rise to a pulsed polarization of the beam. Our study can serve as a guideline for the development of a polarized muonic beam for a precise measurement of the ground state hyperfine splitting of muonic hydrogen, or for μ SR experiments. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Applied Physics B: Lasers & Optics is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00340-023-08124-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 7 StartPage: 1 Subjects: – SubjectFull: Mid-infrared lasers Type: general – SubjectFull: Hyperfine coupling Type: general – SubjectFull: Atomic hydrogen Type: general – SubjectFull: Laser pulses Type: general – SubjectFull: Proton accelerators Type: general – SubjectFull: Hydrogen Type: general – SubjectFull: Pulsed lasers Type: general – SubjectFull: Spectral line broadening Type: general Titles: – TitleFull: Enhancement of the laser-induced excitation probability of the hyperfine ground state of muonic hydrogen by a multipass cavity setup. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Das, Rakesh Mohan – PersonEntity: Name: NameFull: Iwasaki, Masahiko IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 09462171 Numbering: – Type: volume Value: 129 – Type: issue Value: 11 Titles: – TitleFull: Applied Physics B: Lasers & Optics Type: main |
| ResultId | 1 |
