Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D 0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected in pp collisions at 7 TeV. Using the decay D 0 → K + K - K - π +, the D 0 mass is measured to be M(D0)=1864. 75± 0.15(stat)± 0.11(syst) MeV/c2. The mass differences M(D+)-M(D0=4.76± 0.12(stat)± MeV/c 2. M(Ds+)-M(D+)=98.68± 0.03(stat)± 0.04(syst) MeV/c2 are measured using the D 0 → K + K - π + π - and Ds+ to K+K -π+ modes. © 2013 CERN for the benefit of the LHCb collaboration.

Precision measurement of D meson mass differences / Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2013:6(2013), pp. N/A-N/A. [10.1007/JHEP06(2013)065]

Precision measurement of D meson mass differences

Bizzeti A.;
2013

Abstract

Using three- and four-body decays of D mesons produced in semileptonic b-hadron decays, precision measurements of D meson mass differences are made together with a measurement of the D 0 mass. The measurements are based on a dataset corresponding to an integrated luminosity of 1.0 fb -1 collected in pp collisions at 7 TeV. Using the decay D 0 → K + K - K - π +, the D 0 mass is measured to be M(D0)=1864. 75± 0.15(stat)± 0.11(syst) MeV/c2. The mass differences M(D+)-M(D0=4.76± 0.12(stat)± MeV/c 2. M(Ds+)-M(D+)=98.68± 0.03(stat)± 0.04(syst) MeV/c2 are measured using the D 0 → K + K - π + π - and Ds+ to K+K -π+ modes. © 2013 CERN for the benefit of the LHCb collaboration.
2013
2013
6
N/A
N/A
Precision measurement of D meson mass differences / Aaij, R., Abellan Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., Ajaltouni, Z., Albrecht, J., Alessio, F., Alexander, M., Ali, S., Alkhazov, G., Alvarez Cartelle, P., Alves, A.A., Amato, S., Amerio, S., Amhis, Y., Anderlini, L., Anderson, J., Andreassen, R., et al.. - In: JOURNAL OF HIGH ENERGY PHYSICS. - ISSN 1029-8479. - 2013:6(2013), pp. N/A-N/A. [10.1007/JHEP06(2013)065]
Aaij, R.; Abellan Beteta, C.; Adeva, B.; Adinolfi, M.; Adrover, C.; Affolder, A.; Ajaltouni, Z.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Al...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1209848
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