Probing Strong Interaction with Kaonic Atoms — from DAΦNE to J-PARC

The interaction of antikaons (K−) with nucleons and nuclei in the low-energy regime represents a very active research field in hadron physics. A unique and rather direct experimental access to the antikaon-nucleon scattering lengths is provided by precision X-ray spectroscopy of transitions in low-lying states in the lightest kaonic atoms (i.e. kaonic hydrogen and deuterium). In the SIDDHARTA experiment at the electron-positron collider DAFNE of LNFINFN we measured the most precise values of the strong interaction observables in conic hydrogen. The strong interaction on the 1s ground state of the electromagnetically bound K-p atom causes an energy shift and broadening of the 1s state. SIDDHARTA will extend the spectroscopy to kaonic deuterium to get access to the antikaon-neutron interaction and thus the isospin dependent scattering lengths. At J-PARC a kaon beam is used in a complementary experiment with a different setup for spectroscopy of kaonic deuterium atoms. The talk will give an overview of the of the upcoming experiments SIDDHARTA and the complementary experiment at J-PARC.Furthermore, the implications of the experiments for the theory of low-energy strong interaction with strangeness will be discussed.

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Strong interaction studies with kaonic atoms

EPJ Web of Conferences ◽

10.1051/epjconf/201611303009 ◽

2016 ◽

Vol 113 ◽

pp. 03009 ◽

Cited By ~ 1

Author(s):

J. Marton ◽

M. Bazzi ◽

G. Beer ◽

C. Berucci ◽

D. Bosnar ◽

...

Keyword(s):

Strong Interaction ◽

Kaonic Atoms ◽

Interaction Studies

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Strong interaction shifts and widths in light kaonic atoms

Physics Letters B ◽

10.1016/0370-2693(72)90044-5 ◽

1972 ◽

Vol 38 (3) ◽

pp. 181-187 ◽

Cited By ~ 35

Author(s):

G. Backenstoss ◽

A. Bamberger ◽

I. Berström ◽

P. Bounin ◽

T. Bunaciu ◽

...

Keyword(s):

Strong Interaction ◽

Kaonic Atoms

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Kaon-nucleon strong interaction in kaonic atoms

Nuclear Physics B - Proceedings Supplements ◽

10.1016/j.nuclphysbps.2010.10.054 ◽

2010 ◽

Vol 207-208 ◽

pp. 208-211

Author(s):

M. Iliescu ◽

M. Bazzi ◽

G. Beer ◽

L. Bombelli ◽

A.M. Bragadireanu ◽

...

Keyword(s):

Strong Interaction ◽

Kaonic Atoms

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Overview of strong interaction from kaonic atoms

EPJ Web of Conferences ◽

10.1051/epjconf/201919901013 ◽

2019 ◽

Vol 199 ◽

pp. 01013 ◽

Cited By ~ 1

Author(s):

E. Friedman

Keyword(s):

Data Base ◽

Strong Interaction ◽

Periodic Table ◽

State Of The Art ◽

Bubble Chamber ◽

Open Problems ◽

Kaonic Atoms ◽

Short Overview ◽

World Class ◽

Threshold Energies

Experiments on kaonic atoms between 1972 and 1982 at four world-class laboratories established a data base comprising of 24 species along the periodic table. Here we present a short overview of methods for obtaining strong interaction information from these results. Early straight-forward phenomenological analyses and also more sophisticated approaches led to ambiguities and open problems. Using state-of-the-art K̄-nucleon amplitudes plus a phenomelogical multinucleon term can fit the data only when sub-threshold energies are considered. Remaining ambiguities are removed with the help of old bubble-chamber experiments on single-nucleon absorption fraction at threshold.

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Kaonic atoms – studies of the strong interaction with strangeness

EPJ Web of Conferences ◽

10.1051/epjconf/20148101017 ◽

2014 ◽

Vol 81 ◽

pp. 01017

Author(s):

J. Marton ◽

M. Bazzi ◽

G. Beer ◽

C. Berucci ◽

A.M. Bragadireanu ◽

...

Keyword(s):

Strong Interaction ◽

Kaonic Atoms

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STATUS AND PLANS OF EXPERIMENT E17 AT J-PARC

International Journal of Modern Physics A ◽

10.1142/s0217751x11052177 ◽

2011 ◽

Vol 26 (03n04) ◽

pp. 604-606

Author(s):

B. K. WUENSCHEK ◽

H. BHANG ◽

M. CARGNELLI ◽

S. CHOI ◽

C. CURCEANU ◽

...

Keyword(s):

Strong Interaction ◽

State Of The Art ◽

Energy Levels ◽

Level Shift ◽

Semiconductor Detectors ◽

X Ray ◽

Kaonic Atoms ◽

In Situ Calibration

X-ray spectroscopy is an advantageous tool for investigation of the shift and width of the energy levels in kaonic atoms, evoked due to strong interaction between nucleus and kaon. In order to study the 2p level shift in kaonic 3 He , the X-ray transition 3 p →2 d in liquid kaonic 3 He will be measured with a precision of <2 eV in the E17 experiment at J-PARC. To reach this desired precision, a well designed setup, in-situ calibration and state-of-the-art semiconductor detectors will be used. The idea and the preparation status of the whole setup will be reported in this article.

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