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Study Of The Rare Decay Kl Pi0 Gamma Gamma At Ktev
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Book Synopsis Study of the Rare Decay K(L) ---] Pi0 Gamma Gamma at KTeV. by :
Download or read book Study of the Rare Decay K(L) ---] Pi0 Gamma Gamma at KTeV. written by and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors study on the rare decay K{sub L} 2![pi]°[gamma][gamma], measure a{sub V}, and branching ratio by analyzing 96, 97 and 99 data. The measurements were taken by KTeV at Fermi National Accelerator Laboratory. After all cuts, they have 1982 K{sub L} 2![pi]°[gamma][gamma] candidate. The background level is estimated as 30%. K{sub L} 2![pi]°[gamma][gamma] branching ratio is measured as (1.29 ± 0.03(stat) ± 0.04(sys)) x 10−6. By using D'Ambrosio's theory to fit a{sub V}, a{sub V} = -( -0.31 ± 0.05(stat) ± 0.07(sys)).
Book Synopsis Study on the Decay of KL to Pi0 Gamma Gamma by : Jianbo Wang
Download or read book Study on the Decay of KL to Pi0 Gamma Gamma written by Jianbo Wang and published by . This book was released on with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study on the rare decay
Book Synopsis Search for the Rare Decay K(L) ---] Pi0 Pi0 Gamma by :
Download or read book Search for the Rare Decay K(L) ---] Pi0 Pi0 Gamma written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The KTeV E799 experiment has conducted a search for the rare decay K{sub L} 2![pi]°°[gamma] via the topology K{sub L} 2![pi]°[pi]°{sub D}[gamma] (where [pi]°{sub D} 2![gamma]ee−). Due to Bose statistics of the [pi]° pair and the real nature of the photon, the K{sub L} 2![pi]°[pi]°[gamma] decay is restricted to proceed at lowest order by the CP conserving direct emission (DE) of an E2 electric quadrupole photon. The rate of this decay is interesting theoretically since chiral perturbation theory predicts that this process vanishes at level O(p4). Therefore, this mode probes chiral perturbation theory at O(p6). In this paper we report a determination of an upper limit of 2.43 x 10−7 (90% CL) for K{sub L} 2![pi]°[pi]°[gamma]. This is approximately a factor of 20 lower than previous results.
Book Synopsis Search For the Rare Decay K(L) ---] Pi0 Pi0 Gamma by : David Edward Smith
Download or read book Search For the Rare Decay K(L) ---] Pi0 Pi0 Gamma written by David Edward Smith and published by . This book was released on 2006 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a search for the rare decay K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{gamma} using data from the KTeV experiment, using the topology K{sub L} {yields} {pi}{sup 0}{pi}{sub D}{sup 0}{gamma} (where {pi}{sub D}{sup 0} {yields} {gamma}e{sup +}e{sup -}). Due to Bose statistics and the real nature of the photon, the K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{gamma} decay can proceed at lowest order only by the Cp conserving direct emission of an E2 photon. The decay vanishes to O(p{sup 4}) in chiral perturbation theory and is a probe of the theory to the sixth order. The primary background to this decay consists of K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{pi}{sub D}{sup 0} events with one lost photon. The upper limit for the decay K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{gamma} presented in this thesis is 2.32 x 10{sup -7} at the 90% confidence level. This upper limit was derived from both 1997 and 1999 data, using a blind analysis. The upper limit was derived from a Feldman-Cousins method, based on a weighted total of 0.53 data events in the signal region with an expected K{sub L} {yields} {pi}{sup 0}{pi}{sup 0}{pi}{sub D}{sup 0} background of 0.37 {+-} 0.28 events. The previous upper limit for this decay was 5.6 x 10{sup -6} at the 90% confidence level.
Book Synopsis Search for the Rare Decay K[L] [right Arrow] [pi]0[pi]0[gamma] by : David Edward Smith
Download or read book Search for the Rare Decay K[L] [right Arrow] [pi]0[pi]0[gamma] written by David Edward Smith and published by . This book was released on 2006 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Study of the Rare Decay KL {u2192} ?0?? at KTeV. by :
Download or read book Study of the Rare Decay KL {u2192} ?0?? at KTeV. written by and published by . This book was released on 2007 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors study on the rare decay KL → ?0??, measure aV, and branching ratio by analyzing 96, 97 and 99 data. The measurements were taken by KTeV at Fermi National Accelerator Laboratory. After all cuts, they have 1982 KL → ?0?? candidate. The background level is estimated as 30%. KL → ?0?? branching ratio is measured as (1.29 ± 0.03(stat) ± 0.04(sys)) x 10-6. By using D'Ambrosio's theory to fit aV, aV = -(-0.31 ± 0.05(stat) ± 0.07(sys)).
Book Synopsis Search for the Decay KL to Pi0 E+ E- and Study of the Decay KL to E+ E- Gamma Gamma by : Peter L. Mikelsons
Download or read book Search for the Decay KL to Pi0 E+ E- and Study of the Decay KL to E+ E- Gamma Gamma written by Peter L. Mikelsons and published by . This book was released on 1999 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Twist-n-Learn written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proposal for the Study of the Rare Decay KL → [mye] by : T. Inagaki
Download or read book Proposal for the Study of the Rare Decay KL → [mye] written by T. Inagaki and published by . This book was released on 1985 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The First Search for Rare Decay K0L̳-->[pi]0[pi]0[gamma] by : Douglas Alan Roberts
Download or read book The First Search for Rare Decay K0L̳-->[pi]0[pi]0[gamma] written by Douglas Alan Roberts and published by . This book was released on 1994 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Search for the Rare Decay $K_L \to \pi^0 \pi^0 \mu^+ \mu^-$ by :
Download or read book Search for the Rare Decay $K_L \to \pi^0 \pi^0 \mu^+ \mu^-$ written by and published by . This book was released on 2009 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes the search for KL 2![pi]0[pi]0[mu]+[mu]-, which was conducted using data collected by the KTeV Experiment at Fermi National Accelerator Laboratory in Batavia, Illinois. Although this decay mode is possible within the Standard Model, it is limited to a very narrow band of phase space. The HyperCP Experiment has recently observed three [Sigma]+ 2!p[mu]+[mu]- events within a narrow dimuon mass range of 213.8 MeV/c2 to 214.8 MeV/c2. This suggests that the process could occur via a neutral intermediary particle, [Sigma]+ 2!pX0 2!p[mu]+[mu]-, with an X0 mass of 214.3 MeV/c2 ± 0.5 MeV/c2 . Since the X0 has a light mass and a low interaction probability, then it is most likely a new neutral boson that exists beyond the Standard Model. Recent theoretical predictions suggest that the decay mode KL 2![pi]0[pi]0[mu]+[mu]- can also occur via the aforementioned neutral boson: KL 2![pi]0[pi]0X02![pi]0[pi]0[mu]+[mu]-. Therefore, in addition to a Standard Model measurement, the search for KL 2![pi]0[pi]0[mu]+[mu]- is also carried out in an effort to address the viability of X0 in explaining the HyperCP phenomena. Measurement of the upper limits presented in this thesis were performed using blind analysis techniques. The upper limit of the decay KL 2![pi]0[pi]0[mu]+[mu]- has been measured in this thesis to be BR(KL 2![pi]0[pi]0[mu]+[mu]- )
Book Synopsis Study of the Rare Decay K(l)...e+e-u+u- at Ktev (PHD). by : Jason C. Hamm
Download or read book Study of the Rare Decay K(l)...e+e-u+u- at Ktev (PHD). written by Jason C. Hamm and published by . This book was released on 2002 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Results from the KTeV Experiment on the Decay K(L) ---] Pi0 Gamma Gamma by :
Download or read book Final Results from the KTeV Experiment on the Decay K(L) ---] Pi0 Gamma Gamma written by and published by . This book was released on 2008 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report on a new measurement of the branching ratio B(K{sub L} → [pi]°[gamma][gamma]) using the KTeV detector. They reconstruct 1982 events with an estimated background of 608, that results in B(K{sub L} → [pi]°[Gamma][gamma]) = (1.29 ± 0.03{sub stat} ± 0.05{sub syst}) x 10−6. They also measure the parameter, a{sub V}, which characterizes the strength of vector meson exchange terms in this decay. They find a{sub V} = -0.31 ± 0.05{sub stat} ± 0.07{sub syst}. These results utilize the full KTeV data set collected from 1997 to 2000 and supersede earlier KTeV measurements of the branching ratio and a{sub V}.
Book Synopsis Search For the Rare Decay KL {u2192} ?0?0?. by :
Download or read book Search For the Rare Decay KL {u2192} ?0?0?. written by and published by . This book was released on 2006 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a search for the rare decay KL → ?0?0? using data from the KTeV experiment, using the topology KL → ?0?$0top{D}$? (where ?$0top{D}$ → ?e+e-). Due to Bose statistics and the real nature of the photon, the KL → ?0?0? decay can proceed at lowest order only by the Cp conserving direct emission of an E2 photon. The decay vanishes to O(p4) in chiral perturbation theory and is a probe of the theory to the sixth order. The primary background to this decay consists of KL → ?0?$0top{D}$ events with one lost photon. The upper limit for the decay KL ?0?0? presented in this thesis is 2.32 x 10-7 at the 90% confidence level. This upper limit was derived from both 1997 and 1999 data, using a blind analysis. The upper limit was derived from a Feldman-Cousins method, based on a weighted total of 0.53 data events in the signal region with an expected KL → ?0?0?$0top{D}$ background of 0.37 ± 0.28 events. The previous upper limit for this decay was 5.6 x 10-6 at the 90% confidence level.
Book Synopsis First Observation of the Rare Decay K --] Pion Gamma Gamma by : Richard Andrew Soluk
Download or read book First Observation of the Rare Decay K --] Pion Gamma Gamma written by Richard Andrew Soluk and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of the Rare Decays K to Pi E E-and K to E E-gamma by : Karen Elizabeth Ohl
Download or read book A Study of the Rare Decays K to Pi E E-and K to E E-gamma written by Karen Elizabeth Ohl and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Study of the Decay K Plus Til Pi 0 E Plus Gamma by : Robert W. Garland
Download or read book Experimental Study of the Decay K Plus Til Pi 0 E Plus Gamma written by Robert W. Garland and published by . This book was released on 1967 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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