Indication of a deeply bound and compact K-pp state formed in the pp→pΛK+ reaction at 2.85 GeV

T. Yamazaki; M. Maggiora; P. Kienle; K. Suzuki; A. Amoroso; M. Alexeev; F. Balestra; Y. Bedfer; R. Bertini; L. C. Bland; A. Brenschede; F. Brochard; M. P. Bussa; Seonho Choi; M. L. Colantoni; R. Dressler; M. Dzemidzic; J. Cl Faivre; L. Ferrero; J. Foryciarz; I. Fröhlich; V. Frolov; R. Garfagnini; A. Grasso; S. Heinz; W. W. Jacobs; W. Kühn; A. Maggiora; D. Panzieri; H. W. Pfaff; G. Pontecorvo; A. Popov; J. Ritman; P. Salabura; S. Sosio; V. Tchalyshev; S. E. Vigdor

doi:10.1103/PhysRevLett.104.132502

Indication of a deeply bound and compact K^-pp state formed in the pp→pΛK⁺ reaction at 2.85 GeV

T. Yamazaki, M. Maggiora, P. Kienle, K. Suzuki, A. Amoroso, M. Alexeev, F. Balestra, Y. Bedfer, R. Bertini, L. C. Bland, A. Brenschede, F. Brochard, M. P. Bussa, Seonho Choi, M. L. Colantoni, R. Dressler, M. Dzemidzic, J. Cl Faivre, L. Ferrero, J. ForyciarzI. Fröhlich, V. Frolov, R. Garfagnini, A. Grasso, S. Heinz, W. W. Jacobs, W. Kühn, A. Maggiora, D. Panzieri, H. W. Pfaff, G. Pontecorvo, A. Popov, J. Ritman, P. Salabura, S. Sosio, V. Tchalyshev, S. E. Vigdor

Risultato della ricerca: Contributo su rivista › Articolo in rivista › peer review

Abstract

We have analyzed data of the DISTO experiment on the exclusive pp→pΛK⁺ reaction at 2.85 GeV to search for a strongly bound compact K^-pp(X) state to be formed in the pp→K ⁺+X reaction. The observed spectra of the K⁺ missing mass and the pΛ invariant-mass with high transverse momenta of p and K ⁺ revealed a broad distinct peak of 26-σ confidence with a mass MX=2267±3(stat)±5(syst)MeV/c2 and a width ΓX= 118±8(stat)±10(syst)MeV. The enormously large cross section indicates formation of a compact K^-pp with a large binding energy of BK=103MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter.

Lingua originale	Inglese
Numero di articolo	132502
Rivista	Physical Review Letters
Volume	104
Numero di pubblicazione	13
DOI	https://doi.org/10.1103/PhysRevLett.104.132502
Stato di pubblicazione	Pubblicato - 1 apr 2010
Pubblicato esternamente	Sì

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10.1103/PhysRevLett.104.132502

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Yamazaki, T., Maggiora, M., Kienle, P., Suzuki, K., Amoroso, A., Alexeev, M., Balestra, F., Bedfer, Y., Bertini, R., Bland, L. C., Brenschede, A., Brochard, F., Bussa, M. P., Choi, S., Colantoni, M. L., Dressler, R., Dzemidzic, M., Faivre, J. C., Ferrero, L., ... Vigdor, S. E. (2010). Indication of a deeply bound and compact K^-pp state formed in the pp→pΛK⁺ reaction at 2.85 GeV. Physical Review Letters, 104(13), Articolo 132502. https://doi.org/10.1103/PhysRevLett.104.132502

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title = "Indication of a deeply bound and compact K-pp state formed in the pp→pΛK+ reaction at 2.85 GeV",

abstract = "We have analyzed data of the DISTO experiment on the exclusive pp→pΛK+ reaction at 2.85 GeV to search for a strongly bound compact K-pp(X) state to be formed in the pp→K ++X reaction. The observed spectra of the K+ missing mass and the pΛ invariant-mass with high transverse momenta of p and K + revealed a broad distinct peak of 26-σ confidence with a mass MX=2267±3(stat)±5(syst)MeV/c2 and a width ΓX= 118±8(stat)±10(syst)MeV. The enormously large cross section indicates formation of a compact K-pp with a large binding energy of BK=103MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter.",

author = "T. Yamazaki and M. Maggiora and P. Kienle and K. Suzuki and A. Amoroso and M. Alexeev and F. Balestra and Y. Bedfer and R. Bertini and Bland, {L. C.} and A. Brenschede and F. Brochard and Bussa, {M. P.} and Seonho Choi and Colantoni, {M. L.} and R. Dressler and M. Dzemidzic and Faivre, {J. Cl} and L. Ferrero and J. Foryciarz and I. Fr{\"o}hlich and V. Frolov and R. Garfagnini and A. Grasso and S. Heinz and Jacobs, {W. W.} and W. K{\"u}hn and A. Maggiora and D. Panzieri and Pfaff, {H. W.} and G. Pontecorvo and A. Popov and J. Ritman and P. Salabura and S. Sosio and V. Tchalyshev and Vigdor, {S. E.}",

year = "2010",

month = apr,

day = "1",

doi = "10.1103/PhysRevLett.104.132502",

language = "English",

volume = "104",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "13",

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Yamazaki, T, Maggiora, M, Kienle, P, Suzuki, K, Amoroso, A, Alexeev, M, Balestra, F, Bedfer, Y, Bertini, R, Bland, LC, Brenschede, A, Brochard, F, Bussa, MP, Choi, S, Colantoni, ML, Dressler, R, Dzemidzic, M, Faivre, JC, Ferrero, L, Foryciarz, J, Fröhlich, I, Frolov, V, Garfagnini, R, Grasso, A, Heinz, S, Jacobs, WW, Kühn, W, Maggiora, A, Panzieri, D, Pfaff, HW, Pontecorvo, G, Popov, A, Ritman, J, Salabura, P, Sosio, S, Tchalyshev, V & Vigdor, SE 2010, 'Indication of a deeply bound and compact K^-pp state formed in the pp→pΛK⁺ reaction at 2.85 GeV', Physical Review Letters, vol. 104, n. 13, 132502. https://doi.org/10.1103/PhysRevLett.104.132502

TY - JOUR

T1 - Indication of a deeply bound and compact K-pp state formed in the pp→pΛK+ reaction at 2.85 GeV

AU - Yamazaki, T.

AU - Maggiora, M.

AU - Kienle, P.

AU - Suzuki, K.

AU - Amoroso, A.

AU - Alexeev, M.

AU - Balestra, F.

AU - Bedfer, Y.

AU - Bertini, R.

AU - Bland, L. C.

AU - Brenschede, A.

AU - Brochard, F.

AU - Bussa, M. P.

AU - Choi, Seonho

AU - Colantoni, M. L.

AU - Dressler, R.

AU - Dzemidzic, M.

AU - Faivre, J. Cl

AU - Ferrero, L.

AU - Foryciarz, J.

AU - Fröhlich, I.

AU - Frolov, V.

AU - Garfagnini, R.

AU - Grasso, A.

AU - Heinz, S.

AU - Jacobs, W. W.

AU - Kühn, W.

AU - Maggiora, A.

AU - Panzieri, D.

AU - Pfaff, H. W.

AU - Pontecorvo, G.

AU - Popov, A.

AU - Ritman, J.

AU - Salabura, P.

AU - Sosio, S.

AU - Tchalyshev, V.

AU - Vigdor, S. E.

PY - 2010/4/1

Y1 - 2010/4/1

N2 - We have analyzed data of the DISTO experiment on the exclusive pp→pΛK+ reaction at 2.85 GeV to search for a strongly bound compact K-pp(X) state to be formed in the pp→K ++X reaction. The observed spectra of the K+ missing mass and the pΛ invariant-mass with high transverse momenta of p and K + revealed a broad distinct peak of 26-σ confidence with a mass MX=2267±3(stat)±5(syst)MeV/c2 and a width ΓX= 118±8(stat)±10(syst)MeV. The enormously large cross section indicates formation of a compact K-pp with a large binding energy of BK=103MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter.

AB - We have analyzed data of the DISTO experiment on the exclusive pp→pΛK+ reaction at 2.85 GeV to search for a strongly bound compact K-pp(X) state to be formed in the pp→K ++X reaction. The observed spectra of the K+ missing mass and the pΛ invariant-mass with high transverse momenta of p and K + revealed a broad distinct peak of 26-σ confidence with a mass MX=2267±3(stat)±5(syst)MeV/c2 and a width ΓX= 118±8(stat)±10(syst)MeV. The enormously large cross section indicates formation of a compact K-pp with a large binding energy of BK=103MeV, which can be a possible gateway toward cold and dense kaonic nuclear matter.

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U2 - 10.1103/PhysRevLett.104.132502

DO - 10.1103/PhysRevLett.104.132502

M3 - Article

SN - 0031-9007

VL - 104

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132502