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Production of light hypernuclei with light-ion beams and targets

“…The differences are due to that in Ref. [26] the geometrical cross sections instead of the inelastic cross sections were wrongly taken to estimate the hypernuclear yields, and breakup of the hot primary hyperresidues was not considered [49]. Actually, the production cross sections are quite sensitive to the adopted excitation energies, since the breakup probability is proportional to (E x −U ) 3n/2−5/2 , where U is the Coulomb barrier and n is the number of cold residues after breakup [46].…”

Introduction to the Topical Session on the Lifetime Measurement of the Hypertriton

“…Being an introduction, I will not provide a detailed and long compilation of References on the various items since they can be found in the contributions to the HYP2015 Proceedings for this Topical Session by Rappold [1], by Piano [2], by Xu [3] and by Botta [4]. Another complete list of relevant References can be found in a very recent review paper on the Status and Perspectives of experimental studies on Hypernuclear Weak Decays [5].…”

“…The invariant mass technique coupled to precise t.o.f. measurements allowed one to select the two-body mesonic decay and to determine a value of (183 +43 stat −32 stat ± 37 syst ) ps, as reported by Rappold [1]. In both the mentioned experiments with ions a convincing check of the reliability of the analyses was that τ Λ free , deduced from the large sample of events due to decay of free Λ's abundantly produced in the same runs, turned out to be fully consistent with the Particle Data Group value.…”

“…[1][2][3] merit a further careful investigation from both the experimental and the theoretical sides. With regard to the experimental aspect, it is not clear to me to what extent the errors affecting the present data on τ( 3 Λ H) from the STAR Collaboration and on both the Hydrogen Hyperisotopes from the HypHI Collaboration could be reduced by additional data or by improvements in the detectors.…”