Journal Article

Search for the doubly charmed baryon$ \\Xi_{cc}^{+}

Wicht, J., Vorobyev, V., Di Canto, A., Hicheur, A., Pepe Altarelli, M., Popov, D., Alexander, M., De Cian, M., Deschamps, O., Wang, J., Jones, C. R., Durante, P., Gao, Y., Yang, Z., Cardinale, R., Martynov, A., Lees, J.-P., Barlow, R. J., Nikodem, T., Ilten, P., Moran, D., Schmelling, M., Lanfranchi, G., Vázquez Sierra, C., Matev, R., Jans, E., Bedeschi, F., Romero Vidal, A., Okhrimenko, O., Haines, S. C., Henrard, P., Pugatch, V., Torr, N., Bonivento, W., Ketel, T., Pérez-Calero Yzquierdo, A., Ekelhof, R., Ferro-Luzzi, M., Oldeman, R., Hussain, N., Lefèvre, R., Golubkov, D., Shevchenko, V., Morello, M. J., Cheung, S.-F., Jawahery, A., Lai, A., Schneider, O., Soler, F. J. P., Bozzi, C., Joram, C., van den Brand, J., Tran, M. T., Sciubba, A., Fontana, M., Ruiz Valls, P., Wu, S., Campora Perez, D., Straticiuc, M., Cenci, R., Smith, E., Egorychev, V., van Eijk, D., Gibson, V., Tisserand, V., Storaci, B., Soomro, F., Tuning, N., Kvaratskheliya, T., Luo, H., Carboni, G., McNulty, R., Leroy, O., Machikhiliyan, I. V., Baldini, W., Neubert, S., Lesiak, T., Pesen, E., Otalora Goicochea, J. M., Barschel, C., Karacson, M., Nguyen-Mau, C., Decamp, D., Guz, Yu, R

2013

Overview

A search for the doubly charmed baryon$ \\Xi_{cc}^{+} $in the decay mode$ \\Xi_{cc}^{+}\\to \\Lambda_c^{+}{K^{-}}{\\pi^{+}} $is performed with a data sample, corresponding to an integrated luminosity of 0.65 fb −1 , of pp collisions recorded at a centre-of-mass energy of 7 TeV. No significant signal is found in the mass range 3300-3800 MeV /c 2 . Upper limits at the 95% confidence level on the ratio of the$ \\Xi_{cc}^{+} $production cross-section times branching fraction to that of the$ \\Lambda_c^{+} $, R , are given as a function of the$ \\Xi_{cc}^{+} $mass and lifetime. The largest upper limits range from R < 1.5 × 10 − 2 for a lifetime of 100 fs to R < 3 . 9 × 10 −4 for a lifetime of 400 fs.