Creat membership Creat membership
Sign in

Forgot password?

Confirm
  • Forgot password?
    Sign Up
  • Confirm
    Sign In
Creat membership Creat membership
Sign in

Forgot password?

Confirm
  • Forgot password?
    Sign Up
  • Confirm
    Sign In
Collection
For ¥0.57 per day, unlimited downloads CREATE MEMBERSHIP Download

toTop

If you have any feedback, Please follow the official account to submit feedback.

Turn on your phone and scan

home > search >

Confirmation of the doubly charmed baryon Epsilon(+)(cc)(3520) via its decay to pD(+)K(-)

Author:
Ocherashvili, A  Moinester, MA  Russ, J  Engelfried, J  Torres, I  Akgun, U  Alkhazov, G  Amaro-Reyes, J  Atamantchouk, AG  Ayan, AS  Balatz, MY  Bondar, NF  Cooper, PS  Dauwe, LJ  Davidenko, GV  Dersch, U  Dolgolenko, AG  Dzyubenko, GB  Edelstein, R  Emediato, L  Endler, AME  Eschrich, I  Escobar, CO  Evdokimov, AV  Filimonov, IS  Garcia, FG  Gaspero, M  Giller, I  Golovtsov, VL  Gouffon, P  Gulmez, E  Kangling, H  Iori, M  Jun, SY  Kaya, M  Kilmer, J  Kim, VT  Kochenda, LM  Konorov, I  Kozhevnikov, AP  Krivshich, AG  Kruger, H  Kubantsev, MA  Kubarovsky, V  Kulyavtsev, AI  Kuropatkin, NP  Kurshetsov, VF  Kushnirenko, A  Kwan, S  Lach, J  Lamberto, A  Landsberg, LG  Larin, I  Leikin, EM  Li, YS  Luksys, M  Lungov, T  Maleev, VP  Mao, D  Mao, CS  Mao, ZL  Mathew, P  Mattson, M  Matveev, V  McCliment, E  Molchanov, VV  Morelos, A  Nelson, KD  Nemitkin, AV  Neoustroev, PV  Newsom, C  Nilov, AP  Nurushev, SB  Onel, Y  Ozel, E  Ozkorucuklu, S  Penzo, A  Petrenko, SV  Pogodin, P  Procario, M  Prutskoi, VA  Ramberg, E  Rappazzo, GF  Razmyslovich, BV  Rud, VI  Schiavon, P  Simon, J  Sitnikov, AI  Skow, D  Smith, VJ  Srivastava, M  Steiner, V  Stepanov, V  Stutte, L  Svoiski, M  Terentyev, NK  Thomas, GP  Uvarov, LN  Vasiliev, AN  Vavilov, DV  Vazquez-Jauregui, E  Verebryusov, VS  Victorov, VA  Vishnyakov, VE  Vorobyov, AA  Vorwalter, K  You, J  Zhao, WH  Zheng, SC  Zukanovich-Funchal, R  


Journal:
PHYSICS LETTERS B


Abstract(summary):

We observe a signal for the doubly charmed baryon Xi(cc)(+) in the decay mode Xi(cc)(+) -> pD(+)K(-) to complement the previous cc reported decay Xi(cc)(+) -> Lambda(c)(+)K(-)pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. In this new decay mode we observe an excess of 5.62 events over a combinatoric background estimated by event mixing to be 1.38 +/- 0.13 events. The mixed background has Gaussian statistics, giving a signal significance of 4.8 sigma. The Poisson probability that a background fluctuation can produce the apparent signal is less than 6.4 x 10(-4). The observed mass of this state is 3518 +/- 3 MeV/c(2), consistent with the published result. Averaging the two results gives a mass of 3518.7 +/- 1.7 MeV/c(2). The observation of this new weak decay mode confirms the previous SELEX suggestion that this state is a double charm baryon. The relative branching ratio for these two modes is 0.36 +/- 0.21. (c) 2005 Elsevier B.V. All rights reserved.


Page:
18---24


VIEW PDF

The preview is over

If you wish to continue, please create your membership or download this.

Create Membership

Similar Literature

Submit Feedback

This function is a member function, members do not limit the number of downloads