| Title: |
Observation and study of the baryonic B-meson decays B→D(*)pp¯(π)(π) |
| Authors: |
del Amo Sanchez, P; Lees, JP; Poireau, V; Prencipe, E; Tisserand, V; Tico, J Garra; Grauges, E; Martinelli, M; Palano, A; Pappagallo, M; Eigen, G; Stugu, B; Sun, L; Battaglia, M; Brown, DN; Hooberman, B; Kerth, LT; Kolomensky, Yu G; Lynch, G; Osipenkov, IL; Tanabe, T; Hawkes, CM; Watson, AT; Koch, H; Schroeder, T; Asgeirsson, DJ; Hearty, C; Mattison, TS; McKenna, JA; Khan, A; Randle-Conde, A; Blinov, VE; Buzykaev, AR; Druzhinin, VP; Golubev, VB; Onuchin, AP; Serednyakov, SI; Skovpen, Yu I; Solodov, EP; Todyshev, K Yu; Yushkov, AN; Bondioli, M; Curry, S; Kirkby, D; Lankford, AJ; Mandelkern, M; Martin, EC; Stoker, DP; Atmacan, H; Gary, JW; Liu, F; Long, O; Vitug, GM; Campagnari, C; Flanigan, JM; Hong, TM; Kovalskyi, D; Richman, JD; West, C; Eisner, AM; Heusch, CA; Kroseberg, J; Lockman, WS; Martinez, AJ; Schalk, T; Schumm, BA; Seiden, A; Winstrom, LO; Cheng, CH; Doll, DA; Echenard, B; Hitlin, DG; Ongmongkolkul, P; Porter, FC; Rakitin, AY; Andreassen, R; Dubrovin, MS; Mancinelli, G; Meadows, BT; Sokoloff, MD; Bloom, PC; Ford, WT; Gaz, A; Nagel, M; Nauenberg, U; Smith, JG; Wagner, SR; Ayad, R; Toki, WH; Jasper, H; Karbach, TM; Merkel, J; Petzold, A; Spaan, B; Wacker, K; Kobel, MJ; Schubert, KR; Schwierz, R; Bernard, D; Verderi, M |
| Source: |
Physical Review D, vol 85, iss 9 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2012 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
Astronomical and Space Sciences; Atomic; Molecular; Nuclear; Particle and Plasma Physics; Quantum Physics; Nuclear & Particles Physics |
| Description: |
We present results for B-meson decay modes involving a charm meson, protons, and pions using 455×106 BB̄ pairs recorded by the BaBar detector at the SLAC PEP-II asymmetric-energy e +e - collider. The branching fractions are measured for the following ten decays: B ̄0→D0pp̄, B ̄0→D *0pp̄, B ̄0→D +pp̄π -, B ̄0→D *+pp̄π -, B -→D0pp̄π -, B -→D *0pp̄π -, B ̄0→D0pp̄π -π +, B ̄0→D *0pp̄π -π +, B -→D +pp̄π -π -, and B -→D *+pp̄π -π -. The four B - and the two five-body B ̄0 modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(pp̄) and M(D(*)0p) invariant-mass distributions show enhancements near threshold values. In the four-body mode B ̄0→D +pp̄π -, the M(pπ -) distribution shows a narrow structure of unknown origin near 1.5GeV/c2. The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions. © 2012 American Physical Society. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt7dx243xp; https://escholarship.org/uc/item/7dx243xp; https://escholarship.org/content/qt7dx243xp/qt7dx243xp.pdf |
| DOI: |
10.1103/physrevd.85.092017 |
| Availability: |
https://escholarship.org/uc/item/7dx243xp; https://escholarship.org/content/qt7dx243xp/qt7dx243xp.pdf; https://doi.org/10.1103/physrevd.85.092017 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.1086C6 |
| Database: |
BASE |