Measurement of the Strong Interaction Induced Shift and Width of the 1s State of Kaonic Deuterium at J-PARC

Author(s)

J. Zmeskal, M. Sato, S. Ajimura, M. Bazzi, G. Beer, C. Berucci, H. Bhang, D. Bosnar, M. Bragadireanu, P. Buehler, L. Busso, M. Cargnelli, S. Choi, A. Clozza, C. Curceanu, A. D'Uffizi, S. Enomoto, L. Fabbietti, D. Faso, C. Fiorini, H. Fujioka, F. Ghio, R. Golser, C. Guaraldo, T. Hashimoto, R. S. Hayano, T. Hiraiwa, M. Iio, M. Iliescu, K. Inoue, S. Ishimoto, T. Ishiwatari, K. Itahashi, M. Iwai, M. Iwasaki, S. Kawasaki, J. Lachner, P. Levi Sandri, Y. Ma, J. Marton, Y. Matsuda, Y. Mizoi, O. Morra, P. Moskal, T. Nagae, H. Noumi, H. Ohnishi, S. Okada, H. Outa, D. Pietreanu, K. Piscicchia, M. Poli Lener, A. Romero Vidal, Y. Sada, A. Sakaguchi, F. Sakuma, E. Sbardella, A. Scordo, M. Sekimoto, H. Shi, M. Silarski, D. Sirghi, F. Sirghi, K. Suzuki, S. Suzuki, T. Suzuki, K. Tanida, H. Tatsuno, M. Tokuda, A. Toyoda, I. Tucakovic, K. Tsukada, O. Vazquez Doce, E. Widmann, T. Yamaga, T. Yamazaki, Q. Zhang

Abstract

The antikaon-nucleon ((K) over barN) interaction close to threshold provides crucial information on the interplay between spontaneous and explicit chiral symmetry breaking in low-energy QCD. In this context, the importance of kaonic deuterium X-ray spectroscopy has been well recognized, but no experimental results have yet been obtained due to the difficulty of the measurement. We propose to measure the shift and width of the kaonic deuterium 1s state with an accuracy of 60 eV and 140 eV, respectively, at J-PARC. These results, together with the kaonic hydrogen data (KpX at KEK, DEAR and SIDDHARTA at DA Phi NE), will then permit the determination of values of both the isospin I = 0 and I = 1 antikaon-nucleon scattering lengths and will provide the most stringent constraints on the antikaon-nucleon interaction, promising a breakthrough. Refined Monte Carlo studies were performed, including the investigation of background suppression factors for the described setup. These studies have demonstrated the feasibility of determining the shift and width of the kaonic deuterium atom 1s state with the desired accuracy of 60 eV and 140 eV.

Organisation(s)

Isotope Physics

External organisation(s)

Ulmer Fundamental Symmetries Laboratory, Istituto Nazionale di Fisica Nucleare (INFN), Roma, Seoul National University (SNU), University of Zagreb, Horia Hulubei National Institute for R&D in Physics and Nuclear Engineering, Università degli Studi di Torino, Technische Universität München, Politecnico di Milano, Medizinische Universität Wien, Jagiellonian University in Krakow, Universidade de Santiago de Compostela (USC), Osaka University, University of Victoria, Österreichische Akademie der Wissenschaften (ÖAW), Kyoto University, Tokyo Institute of Technology (TIT), University of Tokyo, Osaka Electro-Communication University, Museo Storico Fis, Tohoku University, High Energy Accelerator Research Organization (KEK), Tokyo Gakugei University (TGU)

Journal

Acta Physica Polonica B

Volume

46

Pages

101-112

No. of pages

12

ISSN

0587-4254

DOI

https://doi.org/10.5506/APhysPolB.46.101

Publication date

01-2015

Peer reviewed

Yes

Austrian Fields of Science 2012

103014 Nuclear physics

Keywords

ASJC Scopus subject areas

Physics and Astronomy(all)

Portal url

https://ucris.univie.ac.at/portal/en/publications/measurement-of-the-strong-interaction-induced-shift-and-width-of-the-1s-state-of-kaonic-deuterium-at-jparc(2cc1b51e-c1a5-4b27-82e2-f21c265ab6ff).html