Indication of a Deeply Bound and CompactK−ppState Formed in thepp→pΛK+Reaction at 2.85 GeV
| العنوان: | Indication of a Deeply Bound and CompactK−ppState Formed in thepp→pΛK+Reaction at 2.85 GeV |
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| المؤلفون: | Mario Dzemidzic, H.-W. Pfaff, M. L. Colantoni, Ken Suzuki, W. W. Jacobs, F. Balestra, J.-Cl. Faivre, R. Bertini, M.G. Alexeev, M. Maggiora, W. Kühn, A. Grasso, T. Yamazaki, S. Sosio, P. Salabura, R. Dressler, A. Amoroso, D. Panzieri, S. E. Vigdor, V. Tchalyshev, V. V. Frolov, R. Garfagnini, S. Heinz, J. Foryciarz, L. C. Bland, Y. Bedfer, J. Ritman, A. Maggiora, F. Brochard, I. Fröhlich, P. Kienle, G.B. Pontecorvo, M. P. Bussa, L. Ferrero, S Choi, A. Brenschede, A. Popov |
| المصدر: | Physical Review Letters. 104 |
| بيانات النشر: | American Physical Society (APS), 2010. |
| سنة النشر: | 2010 |
| مصطلحات موضوعية: | Physics, Crystallography, Meson, Binding energy, Hadron, General Physics and Astronomy, Elementary particle, Nuclear Experiment, Lambda, Spectral line, Energy (signal processing), Boson |
| الوصف: | We have analyzed data of the DISTO experiment on the exclusive pp{yields}p{Lambda}K{sup +} reaction at 2.85 GeV to search for a strongly bound compact K{sup -}pp({identical_to}X) state to be formed in the pp{yields}K{sup +}+X reaction. The observed spectra of the K{sup +} missing mass and the p{Lambda} invariant-mass with high transverse momenta of p and K{sup +} revealed a broad distinct peak of 26-{sigma} confidence with a mass M{sub X}=2267{+-}3(stat){+-}5(syst) MeV/c{sup 2} and a width {Gamma}{sub X}=118{+-}8(stat){+-}10(syst) MeV. The enormously large cross section indicates formation of a compact K{sup -}pp with a large binding energy of B{sub K}=103 MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter. |
| تدمد: | 1079-7114 0031-9007 |
| DOI: | 10.1103/physrevlett.104.132502 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::20854ecf52313a17aea04c45692fdfdb https://doi.org/10.1103/physrevlett.104.132502 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........20854ecf52313a17aea04c45692fdfdb |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 10797114 00319007 |
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| DOI: | 10.1103/physrevlett.104.132502 |