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Titolo:
MEASUREMENT OF THE KAON CONTENT OF 3-PRONG TAU-DECAYS
Autore:
BAUER DA; BELCINSKI R; BERG RC; BINGHAM HH; BLOOM ED; BUCHANAN CD; CALDWELL DO; CHUN SB; CLARK AR; DAHL OI; EASTMAN JJ; EBERHARD PH; EISNER AM; FAIRFIELD KH; GODFREY G; GREENBAUM GS; HAUPTMAN JM; HOFMANN W; HOLTZAPPLE RL; KHACHERYAN S; KNOPFLE KT; KOFLER RR; LAMBERT DJ; LOKEN SC; LU A; LYNCH GR; LYS JE; MADARAS RJ; MARSISKE H; MASEK GE; MILLER ES; NICOL NA; NYGREN DR; OYANG YT; PAAR HP; PALOUNEK APT; PELLETT DE; RONAN MT; ROSS RR; SHAPIRO G; STEPHENS RW; STEVENSON ML; STRAUSS MG; SULLIVAN MK; VERNON W; WANG EM; WANG YX; WENZEL WA; YAMAMOTO H; YELLIN SJ; YOST GP; ZAPALAC G;
Indirizzi:
UNIV CALIF BERKELEY BERKELEY CA 94720 UNIV CALIF DAVIS DAVIS CA 95616 UNIV CALIF LOS ANGELES LOS ANGELES CA 90024 UNIV CALIF SAN DIEGO LA JOLLA CA 92093 UNIV CALIF SANTA BARBARA SANTA BARBARA CA 93106 LAWRENCE BERKELEY LAB BERKELEY CA 94720 IOWA STATE UNIV SCI & TECHNOL AMES IA 50011 UNIV CALIF INTERCAMPUS INST RES PARTICLE ACCELERATORS STANFORD CA 94305 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR STANFORD CA 94309 UNIV MASSACHUSETTS AMHERST MA 01003 MAX PLANCK INST NUCL PHYS W-6900 HEIDELBERG 1 GERMANY
Titolo Testata:
Physical review. D. Particles and fields
fascicolo: 1, volume: 50, anno: 1994,
pagine: 13 - 17
SICI:
0556-2821(1994)50:1<13:MOTKCO>2.0.ZU;2-F
Fonte:
ISI
Lingua:
ENG
Soggetto:
LEPTONS;
Tipo documento:
Note
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
D.A. Bauer et al., "MEASUREMENT OF THE KAON CONTENT OF 3-PRONG TAU-DECAYS", Physical review. D. Particles and fields, 50(1), 1994, pp. 13-17

Abstract

We present branching fraction measurements of three-prong decays of the tau- lepton based on data from the TPC/Two-Gamma detector at SLAC PEP. The decays are classified according to the identities of the charged tracks to give simultaneous measurements of B[tau- --> nu(tau)K-pi+pi-]=0.58(-0.13)+0.15% and B[tau- --> nu(tau)K-K+pi-]=0.15+0.15(-0.07)0.09)%, and upper limits of B[tau- --> nu(tau)pi-K+pi-]<0.25% B[tau- --> nu(tau)K-pi+K-]<0.09%, and B[tau- --> nu(tau)K-K+K-]<0.21%, where additional neutrals may be present in each case. The branching fractions are normalized to the world average three-prong topological branching fraction and there is an estimated 20% systematic error in additionto the listed statistical errors. We find the mass distributions in the K-pi+pi- decay are consistent with K1 dominance, and obtain branching fractions of B[tau- --> nu(tau)K1-(1270)]=0.41(-0.35)+0.41% and B[tau- --> nu(tau)K1-(1400)]=0.76(-0.33)+0.40%

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Documento generato il 07/07/20 alle ore 04:47:50