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Ajaltouni, Z.; Albrecht, J.; Alves, A. A.; Anderson, J.; Artamonov, A.; Badalov, A.; Belous, K.; Berezhnoy, A.; van Beuzekom, M.; Blake, T.; Brett, D.; Calvi, M.; Carboni, G.; Cheung, S.-F.; Ciba, K.; Cid Vidal, X.; Cogneras, E.; De Bonis, I.; Donleavy, S.; Dovbnya, A.; Egorychev, V.; Eitschberger, U.; Filippov, S.; Francisco, O.; Gallas Torreira, A.; Gandini, P.; Garra Tico, J.; Golubkov, D.; Gomes, A.; Hennessy, K.; van Herwijnen, E.; Heß, M.; Hombach, C.; Jawahery, A.; Jones, C. R.; Langenbruch, C.; Le Gac, R.; Leo, S.; Li Gioi, L.; Longstaff, I.; Machikhiliyan, I. V.; Marino, P.; Martín Sánchez, A.; Martinelli, M.; Martynov, A.; Matev, R.; McNulty, R.; Meissner, M.; Merk, M.; Müller, K.; Nandakumar, R.; Nikitin, N.; Ogilvy, S.; Passaleva, G.; Pellegrino, A.; Pepe Altarelli, M.; Pérez-Calero Yzquierdo, A.; Perrin-Terrin, M.; Pescatore, L.; Pesen, E.; Playfer, S.; Polci, F.; Polok, G.; Poluektov, A.; Powell, A.; Pugatch, V.; Puig Navarro, A.; Roberts, D. A.; Rodriguez Perez, P.; Ruffini, F.; Satriano, C.; Schindler, H.; Schlupp, M.; Schneider, O.; Seco, M.; Sepp, I.; Seyfert, P.; Shevchenko, V.; Shires, A.; Sirendi, M.; Skidmore, N.; Stone, S.; Straumann, U.; Szczekowski, M.; Thomas, E.; Topp-Joergensen, S.; Torr, N.; Ustyuzhanin, A.; Vazquez Gomez, R.; Veneziano, G.; Viaud, B.; Voong, D.; Vorobyev, A.; Wandernoth, S.; Ward, D. R.; Wicht, J.; Wormser, G.; Wright, S.; Wu, S.; Zhang, Y.
The journal of high energy physics, 12/2013, Letnik: 2013, Številka: 12Journal Article
A bstract 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.
