The Search for the K-->[̳pi][gamma][gamma] Decay Above the K[p̳i]2 Peak
Author: Stephen Scott Adler
Publisher:
Published: 1995
Total Pages: 438
ISBN-13:
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Author: Stephen Scott Adler
Publisher:
Published: 1995
Total Pages: 438
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DOWNLOAD EBOOKAuthor: Atiya, M. S
Publisher:
Published: 1990
Total Pages: 5
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Published: 2006
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Published: 2007
Total Pages: 4
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DOWNLOAD EBOOKThe 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.
Author: John Michael Shields
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Published: 2005
Total Pages: 286
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DOWNLOAD EBOOKWith the E731 apparatus at Fermilab, we have simultaneously collected 6859 K(L) and K(S) decays into pi+pi-gamma. Using our sample of over 370000 pi+pi- decays for normalization we have determined that the ratio GAMMA(K0 --> pi+pi-gamma)/GAMMA(K0 --> pi+pi- ) is (23.0 +/- 0.7) x 10( -3) for K(L) and (7.10 +/- 0.22) x 10( -3) for K(S), for photon energies greater than 20 MeV in the kaon center of mass. After removing the inner-bremsstrahlung contribution, we find that the photon energy spectrum of the direct emission decay of the K(L) is consistent with the presence of a vector meson propagator in the form factor.
Author: International Atomic Energy Agency
Publisher:
Published: 2008
Total Pages: 0
ISBN-13: 9789201126085
DOWNLOAD EBOOKDescribes the rationale and vision for the peaceful use of nuclear energy. The publication identifies the basic principles that nuclear energy systems must satisfy to fulfil their promise of meeting growing global energy demands.
Author: Alok A. Khorana
Publisher: CRC Press
Published: 2007-09-26
Total Pages: 290
ISBN-13: 1420048007
DOWNLOAD EBOOKShowcasing the expertise of top-tier specialists who contributed to the newly released guidelines for the care of thrombosis in cancer patients, this exciting guide was written and edited by members of the American Society of Clinical Oncology panel, (ASCO), on the prevention and treatment of cancer-associated thrombosis, among others, and provides
Author: Yoshihiro Tonegawa
Publisher: Springer
Published: 2019-04-09
Total Pages: 100
ISBN-13: 9811370753
DOWNLOAD EBOOKThis book explains the notion of Brakke’s mean curvature flow and its existence and regularity theories without assuming familiarity with geometric measure theory. The focus of study is a time-parameterized family of k-dimensional surfaces in the n-dimensional Euclidean space (1 ≤ k in
Author: Shailesh Tiwari
Publisher: Springer
Published: 2021-02-26
Total Pages: 409
ISBN-13: 9789811583766
DOWNLOAD EBOOKThis book contains high-quality peer-reviewed papers of the International Conference on Big Data, Machine Learning and their Applications (ICBMA 2019) held at Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India, during 29–31 May 2020. The book provides significant contributions in a structured way so that prospective readers can understand how these techniques are used in finding solutions to complex engineering problems. The book covers the areas of big data, machine learning, bio-inspired algorithms, artificial intelligence and their applications.