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Titolo:
MEASUREMENT OF THE (B)OVER-BAR-]DL(NU)OVER-BAR PARTIAL WIDTH AND FORM-FACTOR PARAMETERS
Autore:
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; 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 IPJ; 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; GITTELMAN B; GRAY SW; HARTILL DL; HELTSLEY BK; HOPMAN PI; KANDASWAMY J; 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;
Indirizzi:
UNIV FLORIDA GAINESVILLE FL 32611 HARVARD UNIV CAMBRIDGE MA 02138 UNIV HAWAII MANOA HONOLULU HI 96822 UNIV ILLINOIS CHAMPAIGN IL 61801 CARLETON UNIV OTTAWA ON K1S 5B6 CANADA INST PARTICLE PHYS OTTAWA ON CANADA MCGILL UNIV MONTREAL PQ H3A 2T8 CANADA INST PARTICLE PHYS MONTREAL PQ 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
Titolo Testata:
Physical review letters
fascicolo: 12, volume: 79, anno: 1997,
pagine: 2208 - 2212
SICI:
0031-9007(1997)79:12<2208:MOT(PW>2.0.ZU;2-4
Fonte:
ISI
Lingua:
ENG
Soggetto:
CB-VERTICAL-BAR; MODEL-INDEPENDENT EXTRACTION; EFFECTIVE FIELD-THEORY; SEMILEPTONIC DECAYS; HEAVY MESONS; QUARK-MODEL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
M. Athanas et al., "MEASUREMENT OF THE (B)OVER-BAR-]DL(NU)OVER-BAR PARTIAL WIDTH AND FORM-FACTOR PARAMETERS", Physical review letters, 79(12), 1997, pp. 2208-2212

Abstract

We have studied the decay (B) over bar --> Dl<(nu)over bar>, where I = e or mu. From a fit to the differential decay rate d Gamma/dw we measure the rate normalization F-D (1)\V-cb\ and form factor slope <(rho)over cap>(2)(D), and, using measured values of tau(B), find Gamma(B --> Dl<(nu)over bar>) = (12.0 +/- 0.9 +/- 2.1) ns(-1). The resulting branching fractions are B((B) over bar(0) --> D(+)l(-)<(nu)over bar>) = (1.87 +/- 0.15 +/- 0.32)% and B(B- --> D(0)l(-)<(nu)over bar>) = (1.94 /- 0.15 +/- 0.34)%. The form factor parameters are in agreement with those measured in B --> Dl<(nu)over bar> decays, as predicted by heavy quark effective theory.

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Documento generato il 01/12/20 alle ore 01:13:29