Experimental results on multi-nucleonic K- absorptions in light nuclei

O. Vázquez Doce; M. Cargnelli; C. Curceanu; R. Del Grande; L. Fabbietti; J. Marton; K. Piscicchia; A. Scordo; D. Sirghi; I. Tucakovic; S. Wycech; J. Zmeskal; A. Anastasi; F. Curciarello; E. Czerwinski; W. Krzemien; G. Mandaglio; M. Martini; P. Moskal; V. Patera; E. Perez Del Rio; M. Silarski

doi:10.1051/epjconf/201713709010

Experimental results on multi-nucleonic K^- absorptions in light nuclei

O. Vázquez Doce, M. Cargnelli, C. Curceanu, R. Del Grande, L. Fabbietti, J. Marton, K. Piscicchia, A. Scordo, D. Sirghi, I. Tucakovic, S. Wycech, J. Zmeskal, A. Anastasi, F. Curciarello, E. Czerwinski, W. Krzemien, G. Mandaglio, M. Martini, P. Moskal, V. PateraE. Perez Del Rio, M. Silarski

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

Research output: Contribution to journal › Conference article › peer-review

Abstract

The AMADEUS collaboration studied the K^- absorptions at low momentum in light nuclei leading to Σ⁰p final state. Those events were recorded by the KLOE detector, used as an active target, installed in the the DAΦNE collider. The results show that it is possible to isolate the process where the K^- is absorbed by two nucleons and the decay products are emitted without any further final state interactions among other contributions involving more than two nucleons. Further, the possible contribution of a ppK^- bound state was investigated. The best fit gives space to a yield of ppK^-/K_stop^- = (0.044 ± 0.009 stat_-0.005^+0.004) × 10^-2 corresponding to a binding energy and a width of 45 and 30 MeV/c², respectively. A statistical analysis of this result shows although that its significance is only at the level of 1σ.

Original language	English
Article number	09010
Journal	EPJ Web of Conferences
Volume	137
DOIs	https://doi.org/10.1051/epjconf/201713709010
State	Published - 22 Mar 2017
Event	12Ith Quark Confinement and the Hadron Spectrum - Thessaloniki, Greece Duration: 29 Aug 2016 → 3 Sep 2016

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Vázquez Doce, O., Cargnelli, M., Curceanu, C., Del Grande, R., Fabbietti, L., Marton, J., Piscicchia, K., Scordo, A., Sirghi, D., Tucakovic, I., Wycech, S., Zmeskal, J., Anastasi, A., Curciarello, F., Czerwinski, E., Krzemien, W., Mandaglio, G., Martini, M., Moskal, P., ... Silarski, M. (2017). Experimental results on multi-nucleonic K^- absorptions in light nuclei. EPJ Web of Conferences, 137, Article 09010. https://doi.org/10.1051/epjconf/201713709010

@article{c22fc9b2bc214d5ba90432882bc028c7,

title = "Experimental results on multi-nucleonic K- absorptions in light nuclei",

abstract = "The AMADEUS collaboration studied the K- absorptions at low momentum in light nuclei leading to Σ0p final state. Those events were recorded by the KLOE detector, used as an active target, installed in the the DAΦNE collider. The results show that it is possible to isolate the process where the K- is absorbed by two nucleons and the decay products are emitted without any further final state interactions among other contributions involving more than two nucleons. Further, the possible contribution of a ppK- bound state was investigated. The best fit gives space to a yield of ppK-/Kstop- = (0.044 ± 0.009 stat-0.005+0.004) × 10-2 corresponding to a binding energy and a width of 45 and 30 MeV/c2, respectively. A statistical analysis of this result shows although that its significance is only at the level of 1σ.",

author = "{V{\'a}zquez Doce}, O. and M. Cargnelli and C. Curceanu and {Del Grande}, R. and L. Fabbietti and J. Marton and K. Piscicchia and A. Scordo and D. Sirghi and I. Tucakovic and S. Wycech and J. Zmeskal and A. Anastasi and F. Curciarello and E. Czerwinski and W. Krzemien and G. Mandaglio and M. Martini and P. Moskal and V. Patera and {Perez Del Rio}, E. and M. Silarski",

note = "Publisher Copyright: {\textcopyright} The Authors, published by EDP Sciences, 2017.; 12Ith Quark Confinement and the Hadron Spectrum ; Conference date: 29-08-2016 Through 03-09-2016",

year = "2017",

month = mar,

day = "22",

doi = "10.1051/epjconf/201713709010",

language = "English",

volume = "137",

journal = "EPJ Web of Conferences",

issn = "2101-6275",

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Vázquez Doce, O, Cargnelli, M, Curceanu, C, Del Grande, R, Fabbietti, L, Marton, J, Piscicchia, K, Scordo, A, Sirghi, D, Tucakovic, I, Wycech, S, Zmeskal, J, Anastasi, A, Curciarello, F, Czerwinski, E, Krzemien, W, Mandaglio, G, Martini, M, Moskal, P, Patera, V, Perez Del Rio, E & Silarski, M 2017, 'Experimental results on multi-nucleonic K^- absorptions in light nuclei', EPJ Web of Conferences, vol. 137, 09010. https://doi.org/10.1051/epjconf/201713709010

TY - JOUR

T1 - Experimental results on multi-nucleonic K- absorptions in light nuclei

AU - Vázquez Doce, O.

AU - Cargnelli, M.

AU - Curceanu, C.

AU - Del Grande, R.

AU - Fabbietti, L.

AU - Marton, J.

AU - Piscicchia, K.

AU - Scordo, A.

AU - Sirghi, D.

AU - Tucakovic, I.

AU - Wycech, S.

AU - Zmeskal, J.

AU - Anastasi, A.

AU - Curciarello, F.

AU - Czerwinski, E.

AU - Krzemien, W.

AU - Mandaglio, G.

AU - Martini, M.

AU - Moskal, P.

AU - Patera, V.

AU - Perez Del Rio, E.

AU - Silarski, M.

PY - 2017/3/22

Y1 - 2017/3/22

N2 - The AMADEUS collaboration studied the K- absorptions at low momentum in light nuclei leading to Σ0p final state. Those events were recorded by the KLOE detector, used as an active target, installed in the the DAΦNE collider. The results show that it is possible to isolate the process where the K- is absorbed by two nucleons and the decay products are emitted without any further final state interactions among other contributions involving more than two nucleons. Further, the possible contribution of a ppK- bound state was investigated. The best fit gives space to a yield of ppK-/Kstop- = (0.044 ± 0.009 stat-0.005+0.004) × 10-2 corresponding to a binding energy and a width of 45 and 30 MeV/c2, respectively. A statistical analysis of this result shows although that its significance is only at the level of 1σ.

AB - The AMADEUS collaboration studied the K- absorptions at low momentum in light nuclei leading to Σ0p final state. Those events were recorded by the KLOE detector, used as an active target, installed in the the DAΦNE collider. The results show that it is possible to isolate the process where the K- is absorbed by two nucleons and the decay products are emitted without any further final state interactions among other contributions involving more than two nucleons. Further, the possible contribution of a ppK- bound state was investigated. The best fit gives space to a yield of ppK-/Kstop- = (0.044 ± 0.009 stat-0.005+0.004) × 10-2 corresponding to a binding energy and a width of 45 and 30 MeV/c2, respectively. A statistical analysis of this result shows although that its significance is only at the level of 1σ.

UR - http://www.scopus.com/inward/record.url?scp=85016827055&partnerID=8YFLogxK

U2 - 10.1051/epjconf/201713709010

DO - 10.1051/epjconf/201713709010

M3 - Conference article

AN - SCOPUS:85016827055

SN - 2101-6275

VL - 137

JO - EPJ Web of Conferences

JF - EPJ Web of Conferences

M1 - 09010

T2 - 12Ith Quark Confinement and the Hadron Spectrum

Y2 - 29 August 2016 through 3 September 2016

ER -

Experimental results on multi-nucleonic K^- absorptions in light nuclei

Abstract

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