A study of the centrally produced K∗(892)K∗(892)and φω systems in pp interactions at 450 GeV/c
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A study of the centrally produced K∗(892)K∗(892)and φω systems in pp interactions at 450 GeV/c

D. Barberis,W. Beusch,F.G. Binon,A.M. Blick,F.E. Close,K.M. Danielsen,A.V. Dolgopolov,S.V. Donskov,B.C. Earl,D. Evans,B.R. French,T. Hino,S. Inaba,A.V. Inyakin,T. Ishida,A. Jacholkowski,T. Jacobsen,Jones G.T,G.V. Khaustov,T. Kinashi,J.B. Kinson,A. Kirk,W. Klempt,V. Kolosov,A.A. Kondashov,A.A. Lednev,V. Lenti,S. Maljukov,P. Martinengo,I. Minashvili,T. Nakagawa,K.L. Norman,J.P. Peigneux,S.A. Polovnikov,V.A. Polyakov,V. Romanovsky,H. Rotscheidt,V. Rumyantsev,N. Russakovich,V.D. Samoylenko,A. Semenov,M. Sené,R. Sené,P.M. Shagin,H. Shimizu,A.V. Singovsky,A. Sobol,A. Solovjev,M. Stassinaki,J.P. Stroot,V.P. Sugonyaev,K. Takamatsu,G. Tchlatchidze,T. Tsuru,M. Venables,O. Villalobos Baillie,M.F. Votruba,Y. Yasu;D. Barberis;W. Beusch;F.G. Binon;A.M. Blick;F.E. Close;K.M. Danielsen;A.V. Dolgopolov;S.V. Donskov;B.C. Earl;D. Evans;B.R. French;T. Hino;S. Inaba;A.V. Inyakin;T. Ishida;A. Jacholkowski;T. Jacobsen;Jones G.T;G.V. Khaustov;T. Kinashi;J.B. Kinson;A. Kirk;W. Klempt;V. Kolosov;A.A. Kondashov;A.A. Lednev;V. Lenti;S. Maljukov;P. Martinengo;I. Minashvili;T. Nakagawa;K.L. Norman;J.P. Peigneux;S.A. Polovnikov;V.A. Polyakov;V. Romanovsky;H. Rotscheidt;V. Rumyantsev;N. Russakovich;V.D. Samoylenko;A. Semenov;M. Sené;R. Sené;P.M. Shagin;H. Shimizu;A.V. Singovsky;A. Sobol;A. Solovjev;M. Stassinaki;J.P. Stroot;V.P. Sugonyaev;K. Takamatsu;G. Tchlatchidze;T. Tsuru;M. Venables;O. Villalobos Baillie;M.F. Votruba;Y. Yasu;
physics letters b 1998 Vol. 436 pp. 204-210
165
yasu1998physicsa12

Abstract

A study of the reactions pp→pfps(K+K−π+π−) and pp→pfps(K+K−π+π−π0) shows evidence for the K∗(892)K∗(892)and φω channels respectively. The K∗(892)K∗(892)mass spectrum shows a broad distribution with a maximum near threshold and an angular analysis shows that it is compatible with having JP=2+. The behaviour of the cross-section as a function of centre of mass energy, and the four momentum transfer dependence, are compatible with what would be expected if the K∗(892)K∗(892)system was produced via double Pomeron exchange. The dPT behaviour of the φω channel is similar to what has been observed for all the undisputed qq states. In contrast, the dPT behaviour of the K∗(892)K∗(892)final state is similar to what has been observed for the φφ final state and for previously observed glueball candidates.

Keywords

spectrum cross section centre of mass momentum transfer

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DOI:
10.1016/s0370-2693(98)00962-9
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https://sciprofiles.com/publication/view/9b2a1b2ea...

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