Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^-$
Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^-$
We measured the strange-meson spectrum in the scattering reaction $K^{-}+p \rightarrow K^{-}\pi^{-}\pi^{-}+p$ with the COMPASS spectrometer at CERN. Using the world's largest sample of this reaction, we performed a comprehensive partial-wave analysis of the mesonic final state. It substantially extends the strange-meson spectrum covering twelve states with masses up to 2.4 GeV/$c^2$. We observe the first candidate for a crypto-exotic strange meson with $J^{P}=0^{-}$ and find $K_3$ and $K_4$ states consistent with predictions for the ground states.
G. D. Alexeev、M. G. Alexeev、C. Alice、A. Amoroso、V. Andrieux、V. Anosov、K. Augsten、W. Augustyniak、C. D. R. Azevedo、B. Badelek、R. Beck、J. Beckers、Y. Bedfer、J. Bernhard、F. Bradamante、A. Bressan、W. -C. Chang、C. Chatterjee、M. Chiosso、S. -U. Chung、A. Cicuttin、M. L. Crespo、D. D'Ago、S. Dalla Torre、S. S. Dasgupta、S. Dasgupta、F. Delcarro、I. Denisenko、O. Yu. Denisov、S. V. Donskov、N. Doshita、Ch. Dreisbach、W. Dünnweber、R. R. Dusaev、D. Ecker、P. Faccioli、M. Faessler、M. Finger、M. Finger、H. Fischer、K. J. Fl?thner、W. Florian、J. M. Friedrich、V. Frolov、L. G. Garcia Ordònez、O. P. Gavrichtchouk、S. Gerassimov、J. Giarra、D. Giordano、A. Grasso、A. Gridin、M. Grosse Perdekamp、B. Grube、M. Grüner、A. Guskov、P. Haas、D. von Harrach、M. Hoffmann、N. d'Hose、C. -Y. Hsieh、S. Ishimoto、A. Ivanov、T. Iwata、V. Jary、R. Joosten、E. Kabu?、F. Kaspar、A. Kerbizi、B. Ketzer、G. V. Khaustov、J. H. Koivuniemi、V. N. Kolosov、K. Kondo Horikawa、I. Konorov、A. Yu. Korzenev、A. M. Kotzinian、O. M. Kouznetsov、A. Koval、F. Krinner、F. Kunne、K. Kurek、R. P. Kurjata、G. Kurten、K. Lavickova、S. Levorato、Y. -S. Lian、J. Lichtenstadt、P. -J. Lin、R. Longo、V. E. Lyubovitskij、A. Maggiora、N. Makke、G. K. Mallot、A. Maltsev、A. Martin、J. Marzec、J. Matou?ek、T. Matsuda、C. Menezes Pires、F. Metzger、W. Meyer、M. Mikhasenko、E. Mitrofanov、D. Miura、Y. Miyachi、R. Molina、A. Moretti、A. Nagaytsev、D. Neyret、M. Niemiec、J. Novy、W. -D. Nowak、G. Nukazuka、A. G. Olshevsky、M. Ostrick、D. Panzieri、B. Parsamyan、S. Paul、H. Pekeler、J. -C. Peng、M. Pe?ek、D. V. Peshekhonov、M. Pe?ková、S. Platchkov、J. Pochodzalla、V. A. Polyakov、C. Quintans、G. Reicherz、C. Riedl、D. I. Ryabchikov、A. Rychter、A. Rymbekova、V. D. Samoylenko、A. Sandacz、S. Sarkar、I. A. Savin、G. Sbrizzai、H. Schmieden、A. Selyunin、S. Seriubin、L. Sinha、D. Spülbeck、A. Srnka、M. Stolarski、M. Sulc、H. Suzuki、S. Tessaro、F. Tessarotto、A. Thiel、F. Tosello、A. Townsend、V. Tskhay、B. Valinoti、B. M. Veit、J. F. C. A. Veloso、A. Vijayakumar、M. Virius、M. Wagner、S. Wallner、K. Zaremba、M. Zavertyaev、M. Zemko、E. Zemlyanichkina、M. Ziembicki
物理学
G. D. Alexeev,M. G. Alexeev,C. Alice,A. Amoroso,V. Andrieux,V. Anosov,K. Augsten,W. Augustyniak,C. D. R. Azevedo,B. Badelek,R. Beck,J. Beckers,Y. Bedfer,J. Bernhard,F. Bradamante,A. Bressan,W. -C. Chang,C. Chatterjee,M. Chiosso,S. -U. Chung,A. Cicuttin,M. L. Crespo,D. D'Ago,S. Dalla Torre,S. S. Dasgupta,S. Dasgupta,F. Delcarro,I. Denisenko,O. Yu. Denisov,S. V. Donskov,N. Doshita,Ch. Dreisbach,W. Dünnweber,R. R. Dusaev,D. Ecker,P. Faccioli,M. Faessler,M. Finger,M. Finger,H. Fischer,K. J. Fl?thner,W. Florian,J. M. Friedrich,V. Frolov,L. G. Garcia Ordònez,O. P. Gavrichtchouk,S. Gerassimov,J. Giarra,D. Giordano,A. Grasso,A. Gridin,M. Grosse Perdekamp,B. Grube,M. Grüner,A. Guskov,P. Haas,D. von Harrach,M. Hoffmann,N. d'Hose,C. -Y. Hsieh,S. Ishimoto,A. Ivanov,T. Iwata,V. Jary,R. Joosten,E. Kabu?,F. Kaspar,A. Kerbizi,B. Ketzer,G. V. Khaustov,J. H. Koivuniemi,V. N. Kolosov,K. Kondo Horikawa,I. Konorov,A. Yu. Korzenev,A. M. Kotzinian,O. M. Kouznetsov,A. Koval,F. Krinner,F. Kunne,K. Kurek,R. P. Kurjata,G. Kurten,K. Lavickova,S. Levorato,Y. -S. Lian,J. Lichtenstadt,P. -J. Lin,R. Longo,V. E. Lyubovitskij,A. Maggiora,N. Makke,G. K. Mallot,A. Maltsev,A. Martin,J. Marzec,J. Matou?ek,T. Matsuda,C. Menezes Pires,F. Metzger,W. Meyer,M. Mikhasenko,E. Mitrofanov,D. Miura,Y. Miyachi,R. Molina,A. Moretti,A. Nagaytsev,D. Neyret,M. Niemiec,J. Novy,W. -D. Nowak,G. Nukazuka,A. G. Olshevsky,M. Ostrick,D. Panzieri,B. Parsamyan,S. Paul,H. Pekeler,J. -C. Peng,M. Pe?ek,D. V. Peshekhonov,M. Pe?ková,S. Platchkov,J. Pochodzalla,V. A. Polyakov,C. Quintans,G. Reicherz,C. Riedl,D. I. Ryabchikov,A. Rychter,A. Rymbekova,V. D. Samoylenko,A. Sandacz,S. Sarkar,I. A. Savin,G. Sbrizzai,H. Schmieden,A. Selyunin,S. Seriubin,L. Sinha,D. Spülbeck,A. Srnka,M. Stolarski,M. Sulc,H. Suzuki,S. Tessaro,F. Tessarotto,A. Thiel,F. Tosello,A. Townsend,V. Tskhay,B. Valinoti,B. M. Veit,J. F. C. A. Veloso,A. Vijayakumar,M. Virius,M. Wagner,S. Wallner,K. Zaremba,M. Zavertyaev,M. Zemko,E. Zemlyanichkina,M. Ziembicki.Spectroscopy of Strange Mesons and First Observation of a Strange Crypto-Exotic State with $J^P=0^-$[EB/OL].(2025-04-13)[2025-06-23].https://arxiv.org/abs/2504.09470.点此复制
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