Department of Production and Management Engineering, Technical University of Crete, Chania 73100, Greece Institute of Computer Science, Foundation for Research and Technology Hellas (FORTH), Science and Technology Park of Crete, P.O. Box 1385, 71110 Heraklion, Greece E-mail: {moustaki,loukas}@logistics.tuc.gr or [email protected] Tel: +30 821 28456, +30 81 391696. FAX: +30 821 69410, +30 81...

A search for $CP$ violation in charmless three-body $\Xi_b^- \to p K^- K^-$ decays is performed using $pp$ collision data recorded with the LHCb detector, corresponding to integrated luminosities of $1\,\text{fb}^{-1}$ at a centre-of-mass energy $\sqrt{s} = 7\,\text{TeV}$, $2\,\text{fb}^{-1}$ 8\,\text{TeV}$ and 13\,\text{TeV}$. good description phase-space distribution obtained an amplitude mod...

Recent studies within the framework of chiral unitary theory produce the Λ(1520) resonance, among several others, as a dynamically generated resonance from the interaction of the baryon decuplet and the meson octet. The Λ(1520) qualifies as a quasibound state of πΣ(1385) and this has repercussion in some observable quantities. In the present work we show that the γp → K+K−p reaction has a sizea...

Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.

Schaller on Archer ............................. 1379 Coruell on Archer .............................. 1380 Eagly on Archer ................................. 1380 Archer Replies ................................... 1383 Hojat on the U.N. Convention on the Rights of the Child ................ 1384 Wessells on the U.N. Convention on the Rights of the Child ............... 1385 Juni on Students' Ri...

Coherent Λπ− production on Pb of 600GeV Σ− hyperons has been studied with the SELEX facility at Fermilab. Using the Primakoff formalism, we set a 90% CL upper limit on the radiative decay width Γ[Σ(1385)− → Σ−γ] < 9.5 keV, and estimate the cross section for γΣ− → Λπ− at √s ≈ 1.385GeV to be 56± 16μb.

Yields and spectra of Σ(1385) are measured in p+p, d+Au and Au+Au collisions at √ s NN =200 GeV. The nuclear modification factors in d + Au collisions are presented. The pT dependent medium effects are investigated via the nuclear modification factors. The implications of these results on various models are discussed.