K- absorption on two nucleons and ppK- bound state search in the σ0p final state

O. Vázquez Doce; L. Fabbietti; M. Cargnelli; C. Curceanu; 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. Pérez del Rio; M. Silarski

doi:10.1016/j.physletb.2016.05.001

K^- absorption on two nucleons and ppK^- bound state search in the σ⁰p final state

O. Vázquez Doce
, L. Fabbietti
, M. Cargnelli
, C. Curceanu
, 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. Pérez del Rio

M. Silarski

Chair of Experimentalphysik - Dense and Strange Hadronic Matter

Research output: Contribution to journal › Article › peer-review

54 Scopus citations

Abstract

We report the measurement of K^- absorption processes in the σ⁰p final state and the first exclusive measurement of the two nucleon absorption (2NA) with the KLOE detector. The 2NA process without further interactions is found to be 9% of the sum of all other contributing processes, including absorption on three and more nucleons or 2NA followed by final state interactions with the residual nucleons. We also determine the possible contribution of the ppK^- bound state to the σ⁰p final state. The yield of ppK-/Kstop- is found to be (0.044±0.009stat-0.005+0.004syst)10-2 but its statistical significance based on an F-test is only 1σ.

Original language	English
Pages (from-to)	134-139
Number of pages	6
Journal	Physics Letters B
Volume	758
DOIs	https://doi.org/10.1016/j.physletb.2016.05.001
State	Published - 10 Jul 2016

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Vázquez Doce, O., Fabbietti, L., Cargnelli, M., Curceanu, C., 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., ... Silarski, M. (2016). K^- absorption on two nucleons and ppK^- bound state search in the σ⁰p final state. Physics Letters B, 758, 134-139. https://doi.org/10.1016/j.physletb.2016.05.001

@article{5df8c46a3d9847b4a81a2b39ec4b06bf,

title = "K- absorption on two nucleons and ppK- bound state search in the σ0p final state",

abstract = "We report the measurement of K- absorption processes in the σ0p final state and the first exclusive measurement of the two nucleon absorption (2NA) with the KLOE detector. The 2NA process without further interactions is found to be 9\% of the sum of all other contributing processes, including absorption on three and more nucleons or 2NA followed by final state interactions with the residual nucleons. We also determine the possible contribution of the ppK- bound state to the σ0p final state. The yield of ppK-/Kstop- is found to be (0.044±0.009stat-0.005+0.004syst)10-2 but its statistical significance based on an F-test is only 1σ.",

author = "\{V{\'a}zquez Doce\}, O. and L. Fabbietti and M. Cargnelli and C. Curceanu 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 \{P{\'e}rez del Rio\}, E. and M. Silarski",

note = "Publisher Copyright: {\textcopyright} 2016.",

year = "2016",

month = jul,

day = "10",

doi = "10.1016/j.physletb.2016.05.001",

language = "English",

volume = "758",

pages = "134--139",

journal = "Physics Letters B",

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Vázquez Doce, O, Fabbietti, L, Cargnelli, M, Curceanu, C, 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, Pérez del Rio, E & Silarski, M 2016, 'K^- absorption on two nucleons and ppK^- bound state search in the σ⁰p final state', Physics Letters B, vol. 758, pp. 134-139. https://doi.org/10.1016/j.physletb.2016.05.001

TY - JOUR

T1 - K- absorption on two nucleons and ppK- bound state search in the σ0p final state

AU - Vázquez Doce, O.

AU - Fabbietti, L.

AU - Cargnelli, M.

AU - Curceanu, C.

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 - Pérez del Rio, E.

AU - Silarski, M.

PY - 2016/7/10

Y1 - 2016/7/10

N2 - We report the measurement of K- absorption processes in the σ0p final state and the first exclusive measurement of the two nucleon absorption (2NA) with the KLOE detector. The 2NA process without further interactions is found to be 9% of the sum of all other contributing processes, including absorption on three and more nucleons or 2NA followed by final state interactions with the residual nucleons. We also determine the possible contribution of the ppK- bound state to the σ0p final state. The yield of ppK-/Kstop- is found to be (0.044±0.009stat-0.005+0.004syst)10-2 but its statistical significance based on an F-test is only 1σ.

AB - We report the measurement of K- absorption processes in the σ0p final state and the first exclusive measurement of the two nucleon absorption (2NA) with the KLOE detector. The 2NA process without further interactions is found to be 9% of the sum of all other contributing processes, including absorption on three and more nucleons or 2NA followed by final state interactions with the residual nucleons. We also determine the possible contribution of the ppK- bound state to the σ0p final state. The yield of ppK-/Kstop- is found to be (0.044±0.009stat-0.005+0.004syst)10-2 but its statistical significance based on an F-test is only 1σ.

UR - https://www.scopus.com/pages/publications/84965144550

U2 - 10.1016/j.physletb.2016.05.001

DO - 10.1016/j.physletb.2016.05.001

M3 - Article

AN - SCOPUS:84965144550

SN - 0370-2693

VL - 758

SP - 134

EP - 139

JO - Physics Letters B

JF - Physics Letters B

ER -

K^- absorption on two nucleons and ppK^- bound state search in the σ⁰p final state

Abstract

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