Measurement of the ${D}^{}(2010{)}^{+}\text{-}{D}^{+}$ Mass Difference

Measurement of the ${D}^{}(2010{)}^{+}\text{-}{D}^{+}$ Mass Difference

We measure the mass difference, Δm+, between the D*(2010)+ and the D+ using the decay chain D*(2010)+→D+π0 with D+→K-π+π+. The data were recorded with the BABAR detector at center-of-mass energies at and near the ϒ(4S) resonance, and correspond to an integrated luminosity of approximately 468  fb-1....

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Veröffentlicht in:Physical review letters 2017, Vol.119 (20)
Hauptverfasser: Lees, J.P., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., Brown, David Nathan, Kolomensky, Yu.G., Fritsch, M., Koch, H., Schroeder, T., Hearty, C., Mattison, T.S., Mckenna, J.A., So, R.Y., Blinov, V.E., Buzykaev, A.R., Druzhinin, V.P., Golubev, V.B., Kravchenko, E.A., Onuchin, A.P., Serednyakov, S.I., Skovpen, Yu.I., Solodov, E.P., Todyshev, K.Yu, Lankford, A.J., Gary, J.W., Long, O., Eisner, A.M., Lockman, W.S., Panduro Vazquez, W., Chao, D.S., Cheng, C.H., Echenard, B., Flood, K.T., Hitlin, D.G., Kim, J., Miyashita, T.S., Ongmongkolkul, P., Porter, F.C., Röhrken, M., Huard, Z., Meadows, B.T., Pushpawela, B.G., Sokoloff, M.D., Sun, L., Smith, J.G., Wagner, S.R., Bernard, D., Verderi, M., Bettoni, D., Bozzi, C., Calabrese, R., Cibinetto, G., Fioravanti, E., Garzia, I., Luppi, E., Santoro, V., Calcaterra, A., de Sangro, R., Finocchiaro, G., Martellotti, S., Patteri, P., Peruzzi, I.M., Piccolo, M., Rotondo, M., Zallo, A., Passaggio, S., Patrignani, C., Lacker, H.M., Bhuyan, B., Mallik, U., Chen, C., Cochran, J., Prell, S., Ahmed, H., Gritsan, A.V., Arnaud, N., Davier, M., Le Diberder, F., Lutz, A.M., Wormser, G., Lange, D.J., Wright, D.M., Coleman, J.P., Hutchcroft, D.E., Payne, D.J., Touramanis, C., Bevan, A.J., Di Lodovico, F., Sacco, R., Cowan, G., Banerjee, Sw, Brown, David Norvil, Davis, C.L., Denig, A.G., Gradl, W., Griessinger, K., Hafner, A., Schubert, K.R.
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Sprache:eng
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High Energy Physics - Experiment
Physics
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Zusammenfassung:We measure the mass difference, Δm+, between the D*(2010)+ and the D+ using the decay chain D*(2010)+→D+π0 with D+→K-π+π+. The data were recorded with the BABAR detector at center-of-mass energies at and near the ϒ(4S) resonance, and correspond to an integrated luminosity of approximately 468  fb-1. We measure Δm+=(140 601.0±6.8[stat]±12.9[syst])  keV. We combine this result with a previous BABAR measurement of Δm0≡m(D*(2010)+)-m(D0) to obtain ΔmD=m(D+)-m(D0)=(4824.9±6.8[stat]±12.9[syst])  keV. These results are compatible with and approximately five times more precise than the Particle Data Group averages.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.119.202003