Kaon production at 200 and 900 GeV cm energy

• Published in: Physics letters. B Vol. 199; no. 2; pp. 311 - 316
• Main Authors: Ansorge, R.E., Åsman, B., Booth, C.N., Burow, L., Carlson, P., Dewolf, R.S., Eckart, B., Ekspong, G., Fuglesang, C., Gaudaen, J., Geich-Gimbel, C., Holl, B., Hospes, R., Jon-And, K., Johnson, D.P., Lotse, F., Manthos, N., Munday, D.J., Ovens, J.E.V., Pelzer, W., Rushbrooke, J.G., Schmickler, H., Triantis, F., Van Hamme, L., Walck, C., Ward, C.P., Ward, D.R., Webber, C.J.S., White, T.O., Wilquet, G., Yamdagni, N.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 17.12.1987
• ISSN: 0370-2693; 1873-2445
• DOI: 10.1016/0370-2693(87)91380-3

Results on inclusive kaon production at 200 and 900 GeV centre of mass (CM) energy obtained with the UA5 detector at the pulsed CERN SPS antiproton-proton Collider are presented and compared with our earlier data at 546 GeV. The average transverse momentum 〈 p t 〉 of kaons has been estimated to be (0.50±0.04) GeV/ c at 200 GeV and (0.63±0.03) GeV/ c at 900 GeV in the central region and shows an increase with CM energy that is smore rapid than that expected from previous ISR data. The yield of kaons per inelastic pp event is found to be (0.72±0.12) at 200 GeV and (1.31±0.14) at 900 GeV. Finally, the K/π ratio has been found to exhibit a very slow increase with CM energy.