Preparation of the hypertriton binding energy measurement at MAMI

Eckert, P.; Achenbach, P.; Fontboté, Marc Aragonès; Akiyama, T.; Distler, Michael Otto; Esser, A.; Geratz, Julian; Hoek, M.; Itabashi, K.; Kaneta, M; Klag, P.; Merkel, H.; Mizuno, M.; Müller, Julian; Müller, Ulrich; Nagao, Shijo; Nakamura, S. N.; Nakamura, Y.R.; Okuyama, K.; Pochodzalla, J.; Sfienti, C.; Spreckels, R.; Steinen, Marcell; Thiel, M.; Uehara, K.; Toyama, Yuichi

doi:10.22323/1.380.0201

Cited by 2 publications

(2 citation statements)

References 8 publications

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“…As the data situation for 3 Λ H is clearly not satisfactory, a new high-precision experiment via decay-pion spectroscopy has been commissioned at MAMI with the goal to reach a 20 keV total error in the binding energy [14,15]. This will be made possible by measuring the absolute value of the beam energy with a novel undulator light interference method [16].…”

Section: Motivation and Backgroundmentioning

confidence: 99%

High accuracy synchrotron radiation interferometry with relativistic electrons

Klag

Achenbach

Akiyama

et al. 2023

J. Phys.: Conf. Ser.

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A high-precision hypernuclear experiment has been performed at the Mainz Microtron (MAMI) to determine the hypertriton Λ binding energy via decay-pion spectroscopy. A key element of this measurement is an accurate calibration of the magnetic spectrometers with the MAMI beam. For such an absolute calibration with small statistical and systematic uncertainties the undulator light interference method will be applied. In this contribution the basic principle of this method is discussed and the analysis status of the measured synchrotron radiation spectra is presented.

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Section: Motivation and Backgroundmentioning

confidence: 99%

High accuracy synchrotron radiation interferometry with relativistic electrons

Klag

Achenbach

Akiyama

et al. 2023

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…As the data situation for these light hypernuclei is clearly not satisfactory, a new highprecision experiment via decay-pion spectroscopy has been commissioned at MAMI with the goal to reach a 20 keV total error in the binding energy [12,13]. Within the running experiment, both, 3 Λ H and 4 Λ H, are expected to be observed.…”

Section: λ Binding Energies Of Hydrogen Hypernucleimentioning

confidence: 99%

Commissioning of the hypertriton binding energy measurement at MAMI

et al. 2022

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A high-precision hypernuclear experiment has been commissioned at the Mainz Microtron (MAMI) to determine the hypertriton Λ binding energy via decay-pion spectroscopy. The method has been successfully pioneered with 4ΛH studies in the last decade. The experiment makes use of a novel high luminosity lithium target with a length of 45mm while being only 0.75mm thick to keep momentum smearing of the decay pions low. The target-to-beam alignment as well as the observation of the deposited heat is achieved with a newly developed thermal imaging system. Together with a precise beam energy determination via the undulator light interference method a recalibration of the magnetic spectrometers will be done to obtain a statistical and systematic error of about 20 keV. The experiment started in the summer of 2022 and initial optimization studies for luminosity and data quality are presented.

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Preparation of the hypertriton binding energy measurement at MAMI

Cited by 2 publications

References 8 publications

High accuracy synchrotron radiation interferometry with relativistic electrons

High accuracy synchrotron radiation interferometry with relativistic electrons

Commissioning of the hypertriton binding energy measurement at MAMI

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