More loosely bound hadron molecules at CDF?

In a recent paper we have proposed a method to estimate the prompt production cross section of X(3872) at the Tevatron assuming that this particle is a loosely bound molecule of a D and a D*bar meson. Under this hypothesis we find that it is impossible to explain the high prompt production cross sec...

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Detalles Bibliográficos
Autores principales: Bignamini, C., Grinstein, B., Piccinini, F., Polosa, A.D., Riquer, V., Sabelli, C.
Lenguaje:eng
Publicado: 2009
Materias:
Particle Physics - Phenomenology
Acceso en línea:https://dx.doi.org/10.1016/j.physletb.2010.01.037
http://cds.cern.ch/record/1230949
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author Bignamini, C.
Grinstein, B.
Piccinini, F.
Polosa, A.D.
Riquer, V.
Sabelli, C.
author_facet Bignamini, C.
Grinstein, B.
Piccinini, F.
Polosa, A.D.
Riquer, V.
Sabelli, C.
author_sort Bignamini, C.
collection CERN
description In a recent paper we have proposed a method to estimate the prompt production cross section of X(3872) at the Tevatron assuming that this particle is a loosely bound molecule of a D and a D*bar meson. Under this hypothesis we find that it is impossible to explain the high prompt production cross section found by CDF at sigma(X(3872)) \sim 30-70 nb as our theoretical prediction is about 300 times smaller than the measured one. Following our work, Artoisenet and Braaten, have suggested that final state interactions in the DD*bar system might be so strong to push the result we obtained for the cross section up to the experimental value. Relying on their conclusions we show that the production of another very narrow loosely bound molecule, the X_s=D_s D_s*bar, could be similarly enhanced. X_s should then be detectable at CDF with a mass of 4080 MeV and a prompt production cross section of sigma(X_s) \sim 1-3 nb.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
record_format invenio
spelling cern-12309492023-03-15T19:11:51Zdoi:10.1016/j.physletb.2010.01.037http://cds.cern.ch/record/1230949engBignamini, C.Grinstein, B.Piccinini, F.Polosa, A.D.Riquer, V.Sabelli, C.More loosely bound hadron molecules at CDF?Particle Physics - PhenomenologyIn a recent paper we have proposed a method to estimate the prompt production cross section of X(3872) at the Tevatron assuming that this particle is a loosely bound molecule of a D and a D*bar meson. Under this hypothesis we find that it is impossible to explain the high prompt production cross section found by CDF at sigma(X(3872)) \sim 30-70 nb as our theoretical prediction is about 300 times smaller than the measured one. Following our work, Artoisenet and Braaten, have suggested that final state interactions in the DD*bar system might be so strong to push the result we obtained for the cross section up to the experimental value. Relying on their conclusions we show that the production of another very narrow loosely bound molecule, the X_s=D_s D_s*bar, could be similarly enhanced. X_s should then be detectable at CDF with a mass of 4080 MeV and a prompt production cross section of sigma(X_s) \sim 1-3 nb.In a recent Letter we have proposed a method to estimate the prompt production cross section of X(3872) at the Tevatron assuming that this particle is a loosely bound molecule of a D and a D¯∗ meson. Under this hypothesis we find that it is impossible to explain the high prompt production cross section found by CDF at σ(X(3872))∼30–70 nb as our theoretical prediction is about 300 times smaller than the measured one. Following our work, Artoisenet and Braaten, have suggested that final state interactions in the D0D¯∗0 system might be so strong to push the result we obtained for the cross section up to the experimental value. Relying on their conclusions we show that the production of another very narrow loosely bound molecule, the Xs=DsD¯s∗ , could be similarly enhanced. Xs should then be detectable at CDF with a mass of 4080 MeV and a prompt production cross section of σ(Xs)∼1–3 nb .In a recent paper we have proposed a method to estimate the prompt production cross section of X(3872) at the Tevatron assuming that this particle is a loosely bound molecule of a D and a D*bar meson. Under this hypothesis we find that it is impossible to explain the high prompt production cross section found by CDF at sigma(X(3872)) \sim 30-70 nb as our theoretical prediction is about 300 times smaller than the measured one. Following our work, Artoisenet and Braaten, have suggested that final state interactions in the DD*bar system might be so strong to push the result we obtained for the cross section up to the experimental value. Relying on their conclusions we show that the production of another very narrow loosely bound molecule, the X_s=D_s D_s*bar, could be similarly enhanced. X_s should then be detectable at CDF with a mass of 4080 MeV and a prompt production cross section of sigma(X_s) \sim 1-3 nb.arXiv:0912.5064oai:cds.cern.ch:12309492009-12-31
spellingShingle Particle Physics - Phenomenology
Bignamini, C.
Grinstein, B.
Piccinini, F.
Polosa, A.D.
Riquer, V.
Sabelli, C.
More loosely bound hadron molecules at CDF?
title More loosely bound hadron molecules at CDF?
title_full More loosely bound hadron molecules at CDF?
title_fullStr More loosely bound hadron molecules at CDF?
title_full_unstemmed More loosely bound hadron molecules at CDF?
title_short More loosely bound hadron molecules at CDF?
title_sort more loosely bound hadron molecules at cdf?
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1016/j.physletb.2010.01.037
http://cds.cern.ch/record/1230949
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AT grinsteinb morelooselyboundhadronmoleculesatcdf
AT piccininif morelooselyboundhadronmoleculesatcdf
AT polosaad morelooselyboundhadronmoleculesatcdf
AT riquerv morelooselyboundhadronmoleculesatcdf
AT sabellic morelooselyboundhadronmoleculesatcdf

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