Spin transfer in exclusive Lambda production from (p)over-right-arrowp collisions at 367 GeV/c

F Balestra, Y Bedfer, R Bertini, LC Bland, A Brenschede, F Brochard, MP Bussa, V Chalyshev, S Choi, M Debowski, M Dzemidzic, JC Faivre, IV Falomkin, Luciano FAVA, L Ferrero, J Foryciarz, V Frolov, R Garfagnini, D Gill, A GrassoS Heinz, VV Ivanov, WW Jacobs, W Kuhn, A Maggiora, M Maggiora, A Manara, Daniele PANZIERI, HW Pfaff, G Piragino, GB Pontecorvo, A Popov, J Ritman, P Salabura, F Tosello, SE Vigdor, G. Zosi

Risultato della ricerca: Contributo su rivistaArticolo in rivista

Abstract

We report the first polarization transfer measurements for exclusive hyperon production reactions. The normal spin transfer coefficient DNN for pp → pK+ Λ is large and negative for forward Λ production at a beam momentum of 3.67GeV/c, a result qualitatively consistent with expectations for a mechanism dominated by kaon exchange and rescattering. The sign of DNN is opposite to that observed in the fragmentation regime for inclusive Λ production at much higher energies.

Lingua originaleInglese
pagine (da-a)1534-1537
Numero di pagine4
RivistaPhysical Review Letters
Volume83
Numero di pubblicazione8
DOI
Stato di pubblicazionePubblicato - 1 gen 1999

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