Download or read book Measurement of the K Pi Nu Nu Branching Ratio written by and published by . This book was released on 2008 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiment E949 at Brookhaven National Laboratory studied the rare decay K-->pi nu{ovr {nu}} and other processes with an exposure of 1.77 x 1012 k+'s. The data were analyzed using a blind analysis technique yielding one candidate event with an estimated background of 0.30 ± 0.03 events. Combining this result with the observation of two candidate events by the predecessor experiment E787 gave the branching ratio B(K+-->pi+ nu{ovr {nu}}) = (1.47{sub -0.89}{sup +1.30}) x 10−1°, consistent with the standard model prediction of (0.74 ± 0.20) x 10−1°. This is a more detailed report of results previously published [V.V. Anisimovsky et al., Phys. Rev. Lett. 93, 031801 (2004)].
Download or read book Measurement of the K pi mu mu Branching Ratio written by Mehran Ardebili and published by . This book was released on 1995 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the Branching Ratio for D sup yields bar K 892 degrees mu sup nu written by and published by . This book was released on 1992 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: The branching ratio for the decay mode D[sup +] [yields] [bar K]*[sup 0] [mu][sup +][nu] has been measured with two methods. The first uses D[sup 0] [yields] [bar K] [sup [minus]][mu][sup +][nu] for normalization, and yields the result B(D[sup +] [yields] [bar K]*[sup 0] [mu][sup +][nu] = (3.25 [plus minus] 0.71 [plus minus] 0.75)%. From this method we also obtain the direct measurement [Gamma](D[sup +] [yields][bar K]*[sup 0][mu][sup +] [nu]/[Gamma](D[sup 0] [yields] K[sup [minus]] [mu][sup +] [nu]) = 0.43 [plus minus] 0.09 [plus minus] 0.09. The second method uses the mode D[sup +] [yields] K[sup [minus]][pi][sup +] [pi][sup +] for normalization and yields B(D[sup +] [yields] [bar K]*[sup 0] [mu][sup +][nu]) = 4.18 [plus minus] 0.66 [plus minus]0.96)%. Combining the results of the two methods yields B(D[sup +] [yields] [bar K]*[sup 0][mu][sup +][nu]) = 3.57 [plus minus] 0.96)%.
Download or read book MEASUREMENT OF BRANCHING RATIO D0 K PI USING PARTIAL RECONSTRUCTION OF ANTI B D X LEPTON ANTI NEUTRINO written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of the absolute branching fraction for D[sup 0][yields] K[sup -][pi][sup+] using the reconstruction of the decay chain[bar B][yields] D*[sup+]X[ell][sup -][bar[nu]], D*[sup+][yields] D[sup 0][pi][sup+] where only the lepton and the low-momentum pion from the D*[sup+] are detected. With data collected by the CLEO II detector at the Cornell Electron Storage Ring, we have determined Br(D[sup 0][yields] K[sup -][pi][sup+])=[3.81[+-] 0.15(stat.)[+-] 0.16(syst.)]%.
Download or read book A Precision Measurement of the Branching Ratio K sup r arrow pi sup pi sup 0 K sup r arrow mu sup nu sub mu written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: A measurement of the branching ratio K[sup+][r-arrow][pi][sup+][pi][sup 0]/K[sup+][r-arrow][mu][sup+][nu][sub[mu]] was made using stopped kaons from p[anti p] annihilations at rest and a magnetic spectrometer to measure the momenta of the charged decay product to the 1% to 1.5% level. The determination is based on 45,500 events passing final data cuts. The resulting ratio is .3329[+-] .0047 (statistical)[+-] .0010 (systematic).
Download or read book A Measurement of the Branching Ratio K subscript L 0 right Arrow 2 pi Symbol 0 written by William Parker Oliver and published by . This book was released on 1969 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book MEASUREMENT OF B K sup yields pi sup nu bar nu written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental measurement of K[sup+][yields][pi][sup+][nu][bar[nu]] is reviewed. New results from experiment E787 at BNL are presented: with data from 1995-97 the branching ratio has been measured to be B(K[sup+][yields][pi][sup+][nu][bar[nu]])= (1.5[sub[minus]1.2][sup+3.4]) x 10[sup[minus]10]. The future prospects for additional data in this mode are examined.
Download or read book New Measurement of the Charged Kaon Semileptonic K pm to pi pi E pm nu K E4 Decay Branching Ratio and Hadronic Form Factors written by and published by . This book was released on 2013 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the K 1 Branching Ratio written by and published by . This book was released on 1971 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the K10 Branching Ratio written by William A. Cooper and published by . This book was released on 1971 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Measurement of the Branching Ratio KL Pi pi KL Pi e7v written by L. M. Bertolott and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Physics semiannual report written by David L. Judd and published by . This book was released on 1968 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Measurement of the Branching Ratio KL 2 pi KL 3 pi written by William P. Oliver and published by . This book was released on 1969 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Measurement of the Branching Ratio of the Mode K subscript L arrow Pointing Right Mu mu written by Paul Stanley Linsay and published by . This book was released on 1977 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the branching ratio K L o 2 pi o to K L o 3 pi o written by H. Faissner and published by . This book was released on 1970 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book EXPERIMENTAL STATUS OF K YIELDS PVV written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The experimental program for the study of the rare kaon decays, K+[pi][nu][bar[nu]] is summarized. A review of recent results is provided along with a discussion of prospects for the future of this program. The primary focus of the world-wide kaon program is the two golden modes: K[sup+][yields][pi][sup+][nu][bar[nu]] and K[sub L][sup o][yields][pi][sup o][nu][bar[nu]]. The first step in an ambitious program to precisely measure both branching ratios has been successfully completed with the observation of two K[sup+][yields][pi][sup+][nu][bar[nu]] events by E787. The E949 experiment is poised to reach an order of magnitude further in sensitivity and to observe[approx]10 Standard Model events, and the CKM experiment should observe[approx]100 SM events by the end of this decade. Limits on the neutral analog K[sub L][sup o][yields][pi][sup o][nu][bar[nu]] have been set by KTeV and within the next couple of years will be pushed by E391a. Measurements of the branching ratio should be made within the next 10 years by KOPIO, with a goal of[approx]50 events, and at the JHF, with a goal of up to 1000 events.
Download or read book A Measurement of the Branching Ratio KL KL e written by Laura M. Bertolotto and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
