Precision measurement of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mn>3</mml:mn><mml:mi>d</mml:mi><mml:mo>→</mml:mo><mml:mn>2</mml:mn><mml:mi>p</mml:mi></mml:math> x-ray energy in kaonic 4He

Okada, S.; Beer, G.; Bhang, H.; Cargnelli, M.; Chiba, J.; Choi, S.; Curceanu, C.; Fukuda, Y.; Hanaki, T.; Hayano, R.; M, Iio; Ishikawa, Takashi; Ishimoto, S.; Ishiwatari, T.; Itahashi, K.; Iwai, M.; Iwasaki, M.; Juhász, B.; Kienle, Paul; Márton, J.; Matsuda, Y.; Ohnìshì, H.; Outa, H.; Sato, Masaharu; Schmid, Philipp C.; Suzuki, Shoji; Suzuki, T.; Tatsuno, H.; Tomono, D.; Widmann, E.; Yamazaki, T.; Yim, H.; Zmeskal, J.

doi:10.1016/j.physletb.2007.08.032

Cited by 95 publications

(51 citation statements)

References 12 publications

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“…TheK nucleus optical potential evaluated in [32] has been checked versus kaonic atoms in [36] with good agreement with experiment. The discrepancies seen for the 4 He atom have been revolved recently with very precise measurement in [41,42] which agree with the early predictions of [36]. Also the study done in [43] showed that a best fit to the data could be obtained with a potential that differed from the predicted one of [32] at the level of 20 %.…”

Section: Introductionsupporting

confidence: 54%

“…The existence of theK bound states in nuclear systems, which are called kaonic nuclei, is theoretically expected because of the strong attractive interactions between theK and the nucleon. Models range from empirical ones with a depth of around 200 MeV at normal nuclear matter density [29], to those imposing chiral symmetry constraints that lead to an attraction of around [40][41][42][43][44][45][46][47][48][49][50] MeV [30][31][32][33][34]. However there is no experimental evidence on this system.…”

Section: Introductionmentioning

confidence: 99%

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K¯NNabsorption within the framework of the fixed-center approximation to Faddeev equations

Bayar

Oset

2013

Phys. Rev. C

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We present a method to evaluate theK absorption width in the boundKN N system. Most calculations of this system ignore this channel and only consider theKN → πΣ conversion. Other works make a qualitative calculation using perturbative methods. Since the Λ(1405) resonance is playing a role in the process, the same resonance is changed by the presence of the absorption channels and we find that a full nonperturbative calculation is called for, which we present here. We employ the Fixed Center Approximation to Faddeev equations to account forK rescattering on the (N N ) cluster and we find that the width of the states found previously for S = 0 and S = 1 increases by about 30 MeV due to theKN N absorption, to a total width of about 80 MeV.

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Section: Introductionsupporting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

K¯NNabsorption within the framework of the fixed-center approximation to Faddeev equations

Bayar

Oset

2013

Phys. Rev. C

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“…The first experimental result consistent with theory was [5]. Within SIDDHARTA the zero-compatible shift was confirmed in a measurement with other systematics and also with 3 He.…”

Section: Epj Web Of Conferencessupporting

confidence: 67%

X-ray spectroscopy of kaonic atoms at SIDDHARTA

Cargnelli

Beer

Berucci

et al. 2014

EPJ Web of Conferences

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Abstract. The X-ray measurements of kaonic atoms play an important role for understanding the low-energy QCD in the strangeness sector. The SIDDHARTA experiment studied the X-ray transitions of 4 light kaonic atoms (H, D, 3 He, and 4 He) using the DAFNE electron-positron collider at LNF (Italy). Most precise values of the shift and width of the kaonic hydrogen 1s state were determined, which have been now used as fundamental information for the low-energy K − p interaction in theoretical studies. An upper limit of the X-ray yield of kaonic deuterium was derived, important for future K − d experiments. The shifts and widths of the kaonic 3 He and 4 He 2p states were obtained, confirming the end of the "kaonic helium puzzle". In this contribution also the plans for new experiments of kaonic deuterium are being presented.

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“…Experimental results and details of kaonic helium X-ray spectroscopy [14,[19][20][21][22]. The first error of shift and width is statistical and second one is systematic.…”

Section: Kaonic Heliummentioning

confidence: 99%

“…The attractiveKN interaction led to the prediction of the deeply-bound K − nuclear states [4]. The established event selection technique at the high intensity hadron beam line has been transitioned to other kaonic atom measurements at KEK and J-PARC in Tokai, Japan [12,14].…”

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confidence: 99%

Future projects of light kaonic atom X-ray spectroscopy

et al. 2016

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Abstract. X-ray spectroscopy of light kaonic atoms is a unique tool to provide precise information on the fundamentalKN interaction at the low-energy limit and the in-medium nuclear interaction of K − . The future experiments of kaonic deuterium strong-interaction shift and width (SIDDHARTA-2 and J-PARC E57) can extract the isospin dependent K − N interaction at threshold. The high-resolution X-ray spectroscopy of kaonic helium with microcalorimeters (J-PARC E62) has the possibility to solve the long-standing potential-strength problem of the attractive K − -nucleus interaction. Here, the recent experimental results and the future projects of X-ray spectroscopy of light kaonic atoms are presented.

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Precision measurement of the 3d→2p x-ray energy in kaonic 4He

Cited by 95 publications

References 12 publications

K¯NNabsorption within the framework of the fixed-center approximation to Faddeev equations

K¯NNabsorption within the framework of the fixed-center approximation to Faddeev equations

X-ray spectroscopy of kaonic atoms at SIDDHARTA

Future projects of light kaonic atom X-ray spectroscopy

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