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Titolo:
FIRST OBSERVATION OF TAU-]3-PI-ETA-NU(TAU) AND TAU-]F(1)PI-NU(TAU) DECAYS
Autore:
BERGFELD T; EISENSTEIN BI; ERNST J; GLADDING GE; GOLLIN GD; HANS RM; JOHNSON E; KARLINER I; MARSH MA; PALMER M; SELEN M; THALER JJ; EDWARDS KW; BELLERIVE A; JANICEK R; MACFARLANE DB; PATEL PM; SADOFF AJ; AMMAR R; BARINGER P; BEAN A; BESSON D; COPPAGE D; DARLING C; DAVIS R; HANCOCK N; KOTOV S; KRAVCHENKO I; KWAK N; ANDERSON S; KUBOTA Y; LEE SJ; ONEILL JJ; PATTON S; POLING R; RIEHLE T; SAVINOV V; SMITH A; ALAM MS; ATHAR SB; LING Z; MAHMOOD AH; SEVERINI H; TIMM S; WAPPLER F; ANASTASSOV A; BLINOV S; DUBOSCQ JE; FUJINO D; GAN KK; HART T; HONSCHEID K; KAGAN H; KASS R; LEE J; SPENCER MB; SUNG M; UNDRUS A; WANKE R; WOLF A; ZOELLER MM; NEMATI B; RICHICHI SJ; ROSS WR; SKUBIC P; BISHAI M; FAST J; GERNDT E; HINSON JW; MENON N; MILLER DH; SHIBATA EI; SHIPSEY LPJ; YURKO M; GIBBONS L; GLENN S; JOHNSON SD; KWON Y; ROBERTS S; THORNDIKE EH; JESSOP CP; LINGEL K; MARSISKE H; PERL ML; UGOLINI D; WANG R; ZHOU X; COAN TE; FADEYEV V; KOROLKOV I; MARAVIN Y; NARSKY I; SHELKOV V; STAECK J; STROYNOWSKI R; VOLOBOUEV I; YE J; ARTUSO M; EFIMOV A; GAO M; GOLDBERG M; HE D; KOPP S; MONETI GC; MOUNTAIN R; SCHUH S; SKWARNICKI T; STONE S; VIEHHAUSER G; XING X; BARTELT J; CSORNA SE; JAIN V; MCLEAN KW; MARKA S; GODANG R; KINOSHITA K; LAI IC; POMIANOWSKI P; SCHRENK S; BONVICINI G; CINABRO D; GREENE R; PERERA LP; ZHOU GJ; BARISH B; CHADHA M; CHAN S; EIGEN G; MILLER JS; OGRADY C; SCHMIDTLER M; URHEIM J; WEINSTEIN AJ; WURTHWEIN F; BLISS DW; MASEK G; PAAR HP; PRELL S; SHARMA V; ASNER DM; GRONBERG J; HILL TS; KUTSCHKE R; LANGE DJ; MENARY S; MORRISON RJ; NELSON HN; NELSON TK; QIAO C; RICHMAN JD; ROBERTS D; RYD A; WITHERELL MS; BALEST R; BEHRENS BH; FORD WT; PARK H; ROY J; SMITH JG; ALEXANDER JP; BEBEK C; BERGER BE; BERKELMAN K; BLOOM K; CASSEL DG; CHO HA; COFFMAN DM; CROWCROFT DS; DICKSON M; DRELL PS; ECKLUND KM; EHRLICH R; FOLAND AD; GAIDAREV P; GALIK RS; GITTELMAN B; GRAY SW; HARTILL DL; HELTSLEY BK; HOPMAN PI; KANDASWAMY K; KIM PC; KREINICK DL; LEE T; LIU Y; LUDWIG GS; MASUI J; MEVISSEN J; MISTRY NB; NG CR; NORDBERG E; OGG M; PATTERSON JR; PETERSON D; RILEY D; SOFFER A; VALANTSPAIGHT B; WARD C; ATHANAS M; AVERY P; JONES CD; LOHNER M; PRESCOTT C; YELTON J; ZHENG J; BRANDENBURG G; BRIERE RA; ERSHOV A; GAO YS; KIM DYJ; WILSON R; YAMAMOTO H; BROWDER TE; LI F; LI Y; RODRIGUEZ JL;
Indirizzi:
UNIV ILLINOIS CHAMPAIGN IL 61801 CARLETON UNIV OTTAWA ON K1S 5B6 CANADA INST PARTICLE PHYS MONTREAL PQ CANADA MCGILL UNIV MONTREAL PQ H3A 2T8 CANADA ITHACA COLL ITHACA NY 14850 UNIV KANSAS LAWRENCE KS 66045 UNIV MINNESOTA MINNEAPOLIS MN 55455 SUNY ALBANY ALBANY NY 12222 OHIO STATE UNIV COLUMBUS OH 43210 UNIV OKLAHOMA NORMAN OK 73019 PURDUE UNIV W LAFAYETTE IN 47907 UNIV ROCHESTER ROCHESTER NY 14627 STANFORD UNIV,STANFORD LINEAR ACCELERATOR CTR STANFORD CA 94309 SO METHODIST UNIV DALLAS TX 75275 SYRACUSE UNIV SYRACUSE NY 13244 VANDERBILT UNIV NASHVILLE TN 37235 VIRGINIA POLYTECH INST & STATE UNIV BLACKSBURG VA 24061 WAYNE STATE UNIV DETROIT MI 48202 CALTECH PASADENA CA 91125 UNIV CALIF SAN DIEGO LA JOLLA CA 92093 UNIV CALIF SANTA BARBARA SANTA BARBARA CA 93106 UNIV COLORADO BOULDER CO 80309 CORNELL UNIV ITHACA NY 14853 UNIV FLORIDA GAINESVILLE FL 32611 HARVARD UNIV CAMBRIDGE MA 02138 UNIV HAWAII MANOA HONOLULU HI 96822 BINP RU-630090 NOVOSIBIRSK RUSSIA LAWRENCE LIVERMORE NATL LAB LIVERMORE CA 94551 UNIV TEXAS AUSTIN TX 78712
Titolo Testata:
Physical review letters
fascicolo: 13, volume: 79, anno: 1997,
pagine: 2406 - 2410
SICI:
0031-9007(1997)79:13<2406:FOOTAT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
TAU-DECAYS; LIBRARY; UPGRADE; KORALB; LEPTON;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
T. Bergfeld et al., "FIRST OBSERVATION OF TAU-]3-PI-ETA-NU(TAU) AND TAU-]F(1)PI-NU(TAU) DECAYS", Physical review letters, 79(13), 1997, pp. 2406-2410

Abstract

We have observed new channels for tau decays with an eta in the finalstate. We study 3-prong tau decays, using the eta --> gamma gamma andeta --> 3 pi(0) decay modes and 1-prong decays with two pi(0)'s usingthe eta --> gamma channel. The measured branching fractions B(tau(-)-->pi(-)pi(-)pi(+)eta nu(tau)) = (3.4-(0.6)(0.5) +/- 0.6) x 10(-4) and B(tau(-) --> pi(-)2 pi(0) eta nu<(tau>)) = (1.4 +/- 0.6 +/- 0.3) x 10(-4). We observe clear evidence for f(1) --> eta pi pi substructure andmeasure B(pi(-) --> F-1 pi(-)nu(tau)) = (5.8(-1.3)(+1.4) +/- 1.8) x 10(-4). We have also searched for eta'(958) production and obtain 90% C. L. upper limits B(tau(-) --> pi(-)eta'nu(tau)) < 7.4 x 10(-5) 10-5 and B(tau(-) --> pi(-) --> pi(-)pi(0) eta'nu(tau)) < 8.0 x 10(-5).

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Documento generato il 01/12/20 alle ore 08:21:40