Evidence of Xi hypernuclear production in the ^{12}C(K^-,K^+)^{12}_{Xi}Be reaction

A. Biglan; A. Ichikawa; A.R. Berdoz; A. Rusek; B. Bassalleck; B. Quinn; C.A. Davis; C.A. Meyer; D.E.Alburger; D.S. Carman

arxiv: nucl-ex/9912007 · v1 · pith:B5BZWR2Cnew · submitted 1999-12-14 · ⚛️ nucl-ex

Evidence of Xi hypernuclear production in the ¹²C(K^-,K^+)¹²_(Xi)Be reaction

P. Khaustov , D.E.Alburger , P.D. Barnes , B. Bassalleck , A.R. Berdoz , A. Biglan , T. Buerger , D.S. Carman

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R.E. Chrien C.A. Davis H. Fischer G.B. Franklin J. Franz L. Gan A. Ichikawa T. Iijima K. Imai Y. Kondo P. Koran M. Landry L. Lee J. Lowe R. Magahiz M. May R. McCrady C.A. Meyer F. Merrill T. Motoba S.A. Page K. Paschke P.H. Pile B. Quinn W.D. Ramsay A. Rusek R. Sawafta H. Schmitt R.A. Schumacher R.W. Stotzer R. Sutter F. Takeutchi W.T.H. van Oers K. Yamamoto Y. Yamamoto M. Yosoi V.J. Zeps

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keywords productionhypernucleareventsfreereactionstatesaccumulatealthough

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The E885 collaboration utilized the 1.8 GeV/c K^- beam line at the AGS to accumulate 3 x 10^5 (K^-,K^+) events. Xi hypernuclear states are expected to be produced through the reaction K^- + ^{12}C -> K^+ + ^{12}_{Xi}Be. The measured missing-mass spectrum indicates the existence of a signal below the threshold for free Xi production. Although the resolution was not sufficient to resolve discrete hypernuclear states, the excess of events in the region of missing mass, kinematically inaccessible in free Xi production, is compared to theoretical prediction for ^{12}_{Xi}Be production.

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Evidence of Xi hypernuclear production in the ¹²C(K^-,K^+)¹²_(Xi)Be reaction

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