Evidence for Λc(2593)+ production

Albrecht, H.; Hamacher, T.; Hofmann, Ralf; Kirchhoff, T.; Mankel, R.; Nau, A.; Nowak, S.; Reßing, D.; Schröder, H.; Schulz, H. D.; Walter, Michael; Wurth, R.; Hast, C.; Kapitza, H.; Kolanoski, H.; Kosche, A.; Lange, A.; Lindner, A.; Schieber, M.; Siegmund, Thomas; Thurn, H.; Töpfer, D.; Wegener, D.; Frankl, C.; Graf, J.; Śchmidtler, M.; Schramm, Michael; Schubert, K. R.; Schwierz, R.; Spaan, B.; Waldi, R.; Reim, K.; Wegener, H.; Eckmann, R.; Kuipers, H.; Mai, O.; Mundt, R.; Oest, T.; Reiner, Robert; Rohde, Angelika; Schmidt‐Parzefall, W.; Stiewe, J.; Werner, S.; Ehret, K.; Hofmann, W.; Hüpper, A.; Knöpfle, K. T.; Spengler, J.; Krieger, P.; MacFarlane, D. B.; Prentice, J. D.; Saull, P. R. B.; Tzamariúdaki, K.; Water, R. G. Van de; Yoon, T. S.; Schneider, M.; Weseler, S.; Bračko, M.; Kernel, G.; Križan, P.; Križnič, E.; Medin, G.; Podobnik, T.; Živko, T.; Balagura, V.; Barsuk, S.; Belyaev, I.; Chistov, R.; Danilov, M.; Eiges, V.; Gershtein, L.; Gershtein, Y.; Golutvin, A.; Igonkina, O.; Korolko, I.; Kostina, G.; Litvintsev, D.; Pakhlov, P.; Semenov, S.; Snizhko, A.; Tichomirov, I.; Zaitsev, Yu.

doi:10.1016/s0370-2693(97)00503-0

Cited by 39 publications

(27 citation statements)

References 20 publications

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“…All of them obtained dynamically the Λ c (2595) resonance. This resonance was reported by the CLEO collaboration [17] and subsequently confirmed by several other experiments [18,19,20].…”

Section: Introductionsupporting

confidence: 77%

DN interaction from the Jülich meson-exchange model

Tolós¹,

Haidenbauer²,

Krein³

2012

AIP Conference Proceedings

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Abstract. The DN interaction is studied in close analogy to the meson-exchangeKN potential of the Jülich group using SU(4) symmetry constraints. The model generates the Λ c (2595) resonance dynamically as a DN quasi-bound state. Results for DN scattering lengths and cross sections are presented and compared with predictions based on the Weinberg-Tomozawa term. Some features of the Λ c (2595) resonance are also discussed emphasizing the role of the near-by πΣ c threshold.

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“…All of them obtained dynamically the Λ c (2595) resonance. This resonance was reported by the CLEO collaboration [17] and subsequently confirmed by several other experiments [18,19,20].…”

Section: Introductionsupporting

confidence: 77%

DN interaction from the Jülich meson-exchange model

Tolós¹,

Haidenbauer²,

Krein³

2012

AIP Conference Proceedings

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“…At the 90% credibility level we obtain Γ(Λ c (2625) + ) < 0.97 MeV/c 2 . For easier comparison to previous results [23,26], h 2 2 corresponds to a Λ c (2595) + decay width of Γ(Λ c (2595) + ) = 2.59 ± 0.30 ± 0.47 MeV/c 2 , calculated at ∆M (Λ c (2595) + ). Our precise measurement of the coupling constant h 2 can, for instance, be used to predict the width of the Ξ c (2645), as discussed in Ref.…”

Section: Results and Conclusionmentioning

confidence: 72%

“…Experimental observation of all four states studied here and measurements of some of their properties have been reported earlier [19][20][21][22][23][24][25][26]. We list the world average masses and widths in Table II, omitting Σ + c states, which are difficult to reconstruct with the CDF II detector due to the inefficiency in π 0 identification.…”

mentioning

confidence: 99%

“…iments have contributed, namely ARGUS [23], E687 at Fermilab [24,25] and CLEO [26], all of which suffer from rather small data samples. In addition, Blechman and co-authors [27] showed that a more sophisticated treatment of the mass lineshape, which takes into account the proximity of the Λ c (2595) + mass to the sum of the masses of its decay products, yields a Λ c (2595) + mass which is 2-3 MeV/c 2 lower than the one observed.…”

mentioning

confidence: 99%

“…13. [26], Fermilab E687 [24,25], and ARGUS [23]. Further explanations can be found in the caption of Fig.…”

mentioning

confidence: 99%

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Measurements of the properties ofΛc(2595),Λc(2625),
Aaltonen¹,
González²,
Amerio³
et al. 2011
Phys. Rev. D
56
0
32
0
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We report measurements of the resonance properties of Λc(2595) + and Λc(2625) + baryons in their decays to Λ + c π + π − as well as Σc(2455) ++,0 and Σc(2520) ++,0 baryons in their decays to Λ + c π ± final states. These measurements are performed using data corresponding to 5.2 fb −1 of integrated luminosity from pp collisions at √ s = 1.96 TeV, collected with the CDF II detector at the Fermilab Tevatron. Exploiting the largest available charmed baryon sample, we measure masses and decay widths with uncertainties comparable to the world averages for Σc states, and significantly smaller uncertainties than the world averages for excited Λ + c states.

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