Hyperon production in the channel <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si1.gif" overflow="scroll"><mml:mi mathvariant="italic">pp</mml:mi><mml:mo>→</mml:mo><mml:msup><mml:mi>K</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>Λ</mml:mi><mml:mi>p</mml:mi></mml:math> near the reaction threshold

El-Samad, S. Abd; Bilger, R.; Böhm, A.; Brinkmann, K.-Th.; Clement, H.; Dshemuchadse, S.; Eyrich, W.; Erhardt, A.; Fanara, C.; Filippi, A.; Freiesleben, H.; Fritsch, M.; Geyer, R.; Hauffe, J.; Hassan, A.M.; Herrmann, P.; Hesselbarth, D.; Jakob, B.; Kilian, K.; Koch, H.; Kress, J. D.; Kuhlmann, E.; Marcello, S.; Marwinski, S.; Metzger, A. E.; Michel, P.; Möller, K.; Morsch, H. P.; Naumann, L.; Roderburg, E.; Schamlott, A.; Schönmeier, P.; Schulte‐Wissermann, M.; Schröeder, Wolfgang; Steinke, M.; Stinzing, F.; Sun, G. Y.; Wachter, J.W.; Wagner, G. J.; Wagner, Mathias; Wilms, A.; Wirth, S.; Zielinski, U.

doi:10.1016/j.physletb.2005.09.086

Cited by 57 publications

(13 citation statements)

References 34 publications

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“…A well-known method for the reconstruction of the reaction dynamics is the Dalitz plot analysis of the final state [33,58,59,60,61]. For instance, for multi-pion production frompd annihilation the presence of rescattering effects was demonstrated via the projection of the Dalitz plot on the invariant mass spectrum of the final πp system [32,62].…”

Section: Dalitz Plotmentioning

confidence: 99%

“…For instance, for multi-pion production frompd annihilation the presence of rescattering effects was demonstrated via the projection of the Dalitz plot on the invariant mass spectrum of the final πp system [32,62]. An analysis in form of a partial wave decomposition of the Dalitz plot was proposed [58, 59,60] for the pp→pK + Λ reaction, which finally allowed to study and separate [61] Fig. 8d) contains the full results, i.e.…”

Section: Dalitz Plotmentioning

confidence: 99%

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Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

et al. 2008

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Abstract. We examine the possibility to extract information about the DN andDN interactions from thepd→D 0 D − p reaction. We utilize the notion that the open-charm mesons are first produced in the annihilation of the antiproton on one nucleon in the deuteron and subsequently rescatter on the other (the spectator) nucleon. The latter process is then exploited for investigating the DN andDN interactions. We study different methods for isolating the contributions from the D

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Section: Dalitz Plotmentioning

confidence: 99%

Section: Dalitz Plotmentioning

confidence: 99%

Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

et al. 2008

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“…[10], and the data of Ref. [14] support the excitation of the N * (1650) resonance. In a reply to Ref.…”

Section: Introductionmentioning

confidence: 57%

“…In the other rescattering diagrams evaluated in Eqs. (14) and (15) we replace T i π and T i K by substituting Λ by Σ 0 in the final states. This takes into account the Λp → Σ 0 p transition, which we argued before was an important term to consider.…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

Thepp→pΛK+andpp→pΣ0K+
Xie
¹
,
Chen
²
,
Oset
³

2011
Phys. Rev. C
8
0
8
0
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We report on a theoretical study of the pp → pΛK + and pp → pΣ 0 K + reactions near threshold using a chiral dynamical approach. The production process is described by single-pion and singlekaon exchange. The final state interactions of nucleon-hyperon, K-hyperon and K-nucleon systems are also taken into account. We show that our model leads to a fair description of the experimental data on the total cross section of the pp → pΛK + and pp → pΣ 0 K + reactions. We find that the experimental observed strong suppression of Σ 0 production compared to Λ production at the same excess energy can be explained. However, ignorance of phases between some amplitudes does not allow to properly account for the nucleon-hyperon final state interaction for the pp → pΣ 0 K + reaction. We also demonstrate that the invariant mass distribution and the Dalitz plot provide direct information about the Λ and Σ 0 production mechanism, and may be tested by experiments at COSY or HIRFL-CSR.

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“…Hogan et. al [32] and more recently the COSY-TOF collaboration [33,34] published spectra. However, these experiments although having rather large acceptances suffer from insufficient resolution to study a peak in the threshold region.…”

Section: The Reaction Ppmentioning

confidence: 99%

Study of the Λp interaction close to the and thresholds

Machner¹,

Haidenbauer²,

Hinterberger³

et al. 2013

Nuclear Physics A

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The Λp interaction close to the ΣN threshold is considered. Specifically, the pronounced structure seen in production reactions like K − d → π − Λp and pp → K + Λp around the ΣN threshold is analyzed. Modern interaction models of the coupled ΛN −ΣN systems generate such a structure either due to the presence of a (deuteron-like) unstable bound state or of an inelastic virtual state. A determination of the position of the prominent peak as observed in various experiments for the two aforementioned reactions leads to values that agree quite well with each other. Furthermore, the deduced mean value of 2128.7 ± 0.3 MeV for the peak position coincides practically with the threshold energy of the Σ + n channel. This supports the interpretation of the structure as a genuine cusp, signaling an inelastic virtual state in the 3 S1 − 3 D1 partial wave of the ΣN isospin 1/2 channel. There is also evidence for a second peak (or shoulder) in the data sets considered which appears at roughly 10-15 MeV above the ΣN 1 threshold. However, its concrete position varies significantly from data set to data set and, thus, a theoretical interpretation is difficult.

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Hyperon production in the channel pp→K+Λp near the reaction threshold

Cited by 57 publications

References 34 publications

Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

Thepp→pΛK+andpp→pΣ0K+
Xie
¹
,
Chen
²
,
Oset
³

2011
Phys. Rev. C
8
0
8
0
View full text Add to dashboard Cite

Study of the Λp interaction close to the and thresholds

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Hyperon production in the channel pp→K+Λp near the reaction threshold

Cited by 57 publications

References 34 publications

Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

Charmed meson rescattering in the reaction $$ \bar pd \uparrow \bar DDN $$

Thepp→pΛK+andpp→pΣ0K+Xie1, Chen2, Oset3 2011Phys. Rev. C8080View full textAdd to dashboardCite

Study of the Λp interaction close to the and thresholds

Contact Info

Product

Resources

About

Thepp→pΛK+andpp→pΣ0K+
Xie
¹
,
Chen
²
,
Oset
³

2011
Phys. Rev. C
8
0
8
0
View full text Add to dashboard Cite