Differential cross sections for K+n elastic scattering between 0.64 and 1.51 GeV/c

Giacomelli, G.; Lugaresi-Serra, P.; Mandrioli, G.; Minguzzi-Ranzi, A.; Rossi, A. M.; Griffiths, Franklyn; Hirata, A.A.; Jennings, R. E.; Wilson, B.C.; Ciapetti, G.; Guidoni, P.; Mastrantonio, G.; Nappi, A.; Zanello, D.; Alberi, G.; Castelli, E.; Poropat, P.; Sessa, M.

doi:10.1016/0550-3213(73)90036-9

Cited by 38 publications

(19 citation statements)

References 8 publications

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“…11, we show the differential cross section of the K + n elastic scattering with the experimental data taken from Refs. [32,38]. We find fairly nice reproduction, especially for p lab =640, 720 and 780 MeV/c, the agreement between the calculation and data is quite good both in magnitude and angular dependence.…”

Section: Unitarized Amplitude and Possible Resonance In I =supporting

confidence: 68%

“…We find fairly nice reproduction, especially for p lab =640, 720 and 780 MeV/c, the agreement between the calculation and data is quite good both in magnitude and angular dependence. These data are from the same experiment [38]. For the other lab momenta, which are from different experiment [32], the agreement is marginal especially for lower energies.…”

Section: Unitarized Amplitude and Possible Resonance In I =mentioning

confidence: 94%

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K +–nucleus elastic scattering revisited from the perspective of partial restoration of chiral symmetry

Aoki

2017

Progress of Theoretical and Experimental Physics

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The K + meson properties in the nuclear medium are investigated by considering the wavefunction renormalization as a first step to reveal the in-medium properties of the K + meson in the context of partial restoration of chiral symmetry. The K + N elastic scattering amplitude is constructed using chiral perturbation theory up to the next-to-leading order. Using the constructed amplitude, we calculate the wavefunction renormalization in the Thomas-Fermi approximation. We obtained a good description of the K + N elastic scattering amplitude. The obtained wavefunction renormalization factor suggests the 2 to 6% enhancement of the K + N interaction at the saturation density. We conclude that the wavefunction renormalization could be one of the important medium effects for the K + meson.

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Section: Unitarized Amplitude and Possible Resonance In I =supporting

confidence: 68%

Section: Unitarized Amplitude and Possible Resonance In I =mentioning

confidence: 94%

K +–nucleus elastic scattering revisited from the perspective of partial restoration of chiral symmetry

Aoki

2017

Progress of Theoretical and Experimental Physics

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“…There are only slightly more than half of the number of data points compared to the T=1 case and the reliability of the data is less, given that it must be extracted from deuteron data with corrections. Again most of the data can be obtained from compilations [30,31,32] but we try to give references to original papers [28,45,46,53,61,62,63,64,65,66,67,68,69,70,71,72]. Normally the neutron result is obtained assuming that the interactions of the kaon with the proton and neutron are independent.…”

Section: A Data Treatmentmentioning

confidence: 99%

Partial-wave analysis ofK+-nucleon scattering

Gibbs

Arceo

2007

Phys. Rev. C

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We have performed a partial-wave analysis of K + -nucleon scattering in the momentum range from 0 to 1.5 GeV/c addressing the uncertainties of the results and comparing them with several previous analyses. It is found that the treatment of the reaction threshold behavior is particularly important. We find a T=0 scattering length which is not consistent with zero, as has been claimed by other analyses. The T=0 phase shifts for ℓ > 0 are consistent with a pure spin-orbit potential. Some indications for the production of a T=0 pentaquark with spin-parity D5/2+ are discussed.

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“…The subscript i denotes the K+ -proton and K+ -neutron interactions. For P-shell nuclei with A::;:16 described with the harmonic oscillator wave functions, the amplitude (2) is (5) where PI (6) q!(p-q)! is the binomial coefficient, and (7) Here a and a' are the length parameters of harmonic oscillator wave functions for s and p shell nucleons.…”

Section: Calculationmentioning

confidence: 99%

“…Hence, microscopic calculations based on the impulse approximation (KMT multiple scattering theory 1 > or Glauber theory 2 >) are expected to work in explaining K+ scattering on nuclei A. In spite of these facts, the differential cross sections for K+ -A scattering on 12 C and 4°C a measured 3 > at Rab=800 MeV /c more than ten years ago have not been reproduced 4 > by conventional calculations with the K+ N phase shifts given by Giacomelli et al 5 > and Martin. 6 > For the past decade, great efforfHo> has been made in realizing agreement with data, considering higher corrections such as two-body correlation effects arising from nuclear deformation, double spin-flip and double isospin-fiip, off-shell effects and binding effects of nucleons.…”

mentioning

confidence: 93%

K+ Total Cross Sections on Nuclei

Yamauchi¹,

Sakamoto²

1995

Progress of Theoretical Physics

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577The ratio of the K+ total cross section of nuclei to that of deuterons, Rr, is calculated in the framework of the Glauber approach. The quantity Rr is sensitive to the ratio of the real to imaginary part of the K+ N amplitude, e. In the region of low K+ momentum, Rr is larger than unity since lei> 1 for light nuclei. § 1. IntroductionThe K+ meson is the weakest among hadronic probes of nuclei. Its mean free path is very long in nuclear medium (5--7 fm), and the energy dependence of the K+ N cross section is also very smooth at low momenta. Hence, microscopic calculations based on the impulse approximation (KMT multiple scattering theory 1 > or Glauber theory 2 >) are expected to work in explaining K+ scattering on nuclei A. In spite of these facts, the differential cross sections for K+ -A scattering on 12 C and 4°C a measured 3 > at Rab=800 MeV /c more than ten years ago have not been reproduced 4 > by conventional calculations with the K+ N phase shifts given by Giacomelli et al. 5 > and Martin. 6 > For the past decade, great efforfHo> has been made in realizing agreement with data, considering higher corrections such as two-body correlation effects arising from nuclear deformation, double spin-flip and double isospin-fiip, off-shell effects and binding effects of nucleons. However, none of these effects has significantly improved the agreement, even if an overall 17 % normalization uncertainty in the absolute values of the data is taken into account.Considering the quenching of inelastic electron-nucleon longitudinal response function 11 > and the EMC effects/ 2 >' 13 > Siegel et al. 14 > suggested that K+ could be sensitive to an increase in the effective nucleon size in nuclear medium ("swelling") and that if the nucleons in the nucleus "swell" the effects could be detected by measuring the ratio of the K+ total cross section of nuclei to that of deuteronsFurther, Brown et att 5 > considered the density dependence of the vector-meson masses of the meson cloud around the nucleon in nuclear media. The swelling considered as an increase in the Su K+ N phase shift or an increase in the nucleon effective size due to the decrease of the vector-meson masses makes the predicted cross sections large.The ratios Rr for 6 Li, 12 C, 28 Si and 4°C a have recently been measured 16 > at 490 MeV /c~Ptab~714 MeV /c. When the K+ N phase shifts given by Giacomelli et al., Martin and Hashimoto 17 > are used in the conventional calculations, the Rr predicted are small compared with the measured values. The increase of the nucleon effective size predicts large Rr.

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Differential cross sections for K+n elastic scattering between 0.64 and 1.51 GeV/c

Cited by 38 publications

References 8 publications

K +–nucleus elastic scattering revisited from the perspective of partial restoration of chiral symmetry

K +–nucleus elastic scattering revisited from the perspective of partial restoration of chiral symmetry

Partial-wave analysis ofK+-nucleon scattering

K+ Total Cross Sections on Nuclei

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