Author: Karen Elizabeth OhlPublisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A Study of the Rare Decays K to Pi E E-and K to E E-gamma
Author: Karen Elizabeth OhlStudy of the Rare Decay K(L) ---] Pi0 Gamma Gamma at KTeV.
![Study of the Rare Decay K(L) ---] Pi0 Gamma Gamma at KTeV. PDF](https://books.google.com/books/content/images/frontcover/xX86nQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 132
Book Description
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)).
Using K Decays as a Source of Tagged. Pi. °'s
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
It appears that using K/sup + -/ ..-->.. ..pi ... pi..° is a useful source of tagged ..pi..°'s to investigate the rare decays ..pi..° ..-->.. ee−, ..pi..° ..-->.. ..gamma gamma..approx., and ..pi..° ..-->.. ..nu.. anti ..nu ... Present accelerator intensities may be sufficient to study the first process, although a detailed experimental design may show that higher intensities are needed. Higher flux beams clearly are needed to achieve the best sensitivity to ..pi..° ..-->.. ..nu.. anti ..nu.. and ..pi..° ..-->.. ..gamma gamma..approx.
A Study of Rare Decays of the K0[subscript L].
![A Study of Rare Decays of the K0[subscript L]. PDF](https://books.google.com/books/content/images/frontcover/HMRFAAAAIAAJ?fife=w80-h100)
Author: Gregory John DonaldsonPublisher:
ISBN:
Category : Kaons
Languages : en
Pages : 234
Book Description
Search for the Rare Decay K(L) ---] Pi0 Pi0 Gamma
![Search for the Rare Decay K(L) ---] Pi0 Pi0 Gamma PDF](https://books.google.com/books/content/images/frontcover/9FSuAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 4
Book Description
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.
Search for Rare Decays K 0 L --> [my]e and K 0 L --> Ee
![Search for Rare Decays K 0 L --> [my]e and K 0 L --> Ee PDF](https://books.google.com/books/content/images/frontcover/BTsXtwAACAAJ?fife=w80-h100)
Author: T. InagakiStatus of the Study of the Rare Decay K + Pi + Ny Ny at BNL
Author: Takeshi K. KomatsubaraPublisher:
ISBN:
Category :
Languages : en
Pages : 5
Book Description
Status of a Study of the Decay K. --]. Pi. . Nu
![Status of a Study of the Decay K. --]. Pi. . Nu PDF](https://books.google.com/books/content/images/frontcover/D9ZlAQAACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
AGS-787, BNL-Princeton-TRIUMF, began taking data in February 1988 on rare K decays into .pi. and non-interacting neutrals. Recent observations of B-/bar B/ mixing have sharpened the branching ratio prediction of the three generation standard model, (SM), to (approximately) 1-5 x 10−1° for .pi.+.nu./bar /nu//. The detector has 2.pi. acceptance for this decay and 4.pi. acceptance for background gammas. A very large window for viewing new physics exists between the SM value and the previous experimental limit of 1.4 x 10−7. Several other predicted rare K+ decays can be detected. The performance of the detector is described. 8 refs., 4 figs.
![Search for the Rare Decay K[L] [right Arrow] [pi]0[pi]0[gamma] PDF](https://books.google.com/books/content/images/frontcover/1CEqAAAAYAAJ?fife=w80-h100)
Author: David Edward Smith
Author: T. Akagi