Optical studies of the back-channel leakage in <i>N</i>-channel MOSFET on silicon-on-sapphire (SOS)

Harari, E.

doi:10.1063/1.88882

Cited by 10 publications

(9 citation statements)

References 4 publications

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“…These sum rules are of particular interest because of the large experimentally observed branching ratio [21] for B ± → K ± η ′ . A violation favoring B ± → K ± η ′ can provide convincing evidence for an additional contribution [10] like a glueball, charm admixture [22][23][24][25] in the η ′ wave function or an A...Z-violating hairpin diagram. Present data are not statistically significant.…”

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confidence: 99%

FSI rescattering in B± decays via states with η, η′ ω and φ

Lipkin

1998

Physics Letters B

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New results going beyond those obtained from isospin and flavor symmetry and subject to clear experimental tests are obtained for effects of FSI in B ± decays to charmless strange final states containing neutral flavor-mixed mesons like ω, φ, η and η ′ . The most general strong-interaction diagrams containing arbitrary numbers of quarks and gluons are included with the assumptions that any qq pair created by gluons must be a flavor singlet, and that there are no hairpin diagrams in which a final meson contains a qq pair from the same gluon vertex. The smallness of K − η suggests that it might have a large CP violation. A sum rule is derived to test whether the large K − η ′ requires the addition of an additional glueball or charm admixture. Further analysis from D s decay systematics supports this picture of FSI and raises questions about charm admixture in the η ′ .The recent observation of large branching ratios for B decays into final states containing the η ′ suggests including these states in treatments of final state rescattering. Mixtures with SU(3) singlet and octet components are not easily treated in SU (3) [3,4] treatments of B decays to include flavor-mixed final states containing ω, φ, η and η ′ mesons without introducing additional free parameters. We also apply our new method to otherwise unexplained D s decay systematics [5,6].We exploit known [7] flavor-topology [8] characteristics of quasi-two-body charmless strange decays of B − mesons. The final states all have the quark composition sūqq where qq denotes a pair of the same flavor which can be uū , dd or ss, and we do not consider the possibility of charm admixture in the final state. The qq pair may come from a very complicated diagram involving many quarks and gluons. But all possibilities for its origin 1

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confidence: 99%

FSI rescattering in B± decays via states with η, η′ ω and φ

Lipkin

1998

Physics Letters B

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“…The experimental values from the new data [3] also show no evidence for a strong violation indicating a large contribution [12][13][14] of the type needed to explain the large violation of the sum rule(1.1).…”

Section: Br(kmentioning

confidence: 98%

“…Since SU(3) symmetry breaking which keeps the pseudoscalar nonet intact is not likely to produce such a result, the most likely explanations are a breakdown of the pseudoscalar nonet picture or a violation of the OZI rule. There have been suggestions of an additional contribution [11] outside the nonet like a glueball, charm admixture or radial excitation [12][13][14] in the η ′ wave function or an A...Z or OZI-violating hairpin diagram illustrated by fig. 1.…”

Section: A Relative Phasementioning

confidence: 99%

Analysis of new charmless strange B decay data leaves high B→Kη′ and B→Kη′X

Lipkin

2006

Physics Letters B

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New data confirming the prediction BR(K ± ρ o ) = BR(K ± ω) support flavor-topology B → V P sum rules based on the OZI rule and emphasize the sharp contrast with the failure of the analogous B → P P sum rule due to the anomalously large BR(B → Kη ′ ). Confirmation of OZI validity in B-decay analyses for VP final states suggests improving data on the analogous neutral decay difference BR(which measures tree-penguin interference and possible direct CP violation.A successful approximate isospin sum rule is rearranged and reinterpreted to pinpoint tree-penguin interference in B → Kπ and B → Kρ transitions. The magnitude of the interference is shown to still be at the statistical noise level with present data. * e-mail: ftlipkin@weizmann.ac.il 1 I. TWO INTERESTING SUM RULES AND THEIR IMPLICATIONSA. An interesting flavor-topology sum ruleThe large branching ratio BR(B → Kη ′ ) ≈ 70 · 10 −6 still remains a problem [1], together with the large inclusive branching ratio for B → Kη ′ X (inclusive). The real problem here is that BR(B → Kη ′ ) ≫ BR(B → Kπ). In the standard description of the η and η ′ , their SU(3) octet components belong to the same pseudoscalar octet as the pions. Thus this large difference suggests a contribution to BR(B → Kη ′ ) via the SU(3) singlet component of the η and η ′ . The necessity for this extra contribution is seen in the gross violation of the sum rule [2] which was derived specifically to test for such contributions. We review here the derivation which exploits known [4] flavor-topology [5] characteristics of charmless strange B ± decays. Common calculations of weak decays are subject to uncertainties arising from unknown contributions of final state interactions. The flavortopology approach automatically includes the contributions to all orders from all final state interactions described by quark-gluon interactions which conserve flavor SU(3).The final states considered for B − decay all have the quark composition sūqq where qq denotes a pair of the same flavor which can be uū, dd or ss. Charm admixture in the final state is not considered.We first review the flavor-topology properties of all the diagrams that can lead to final statesKM, whereK denotes a K − orK o or any analogous pair of K * resonances and M denotes the members of any meson nonet, labeled M 1 for the unitary singlet state, M u , M d and M s respectively for the uū, dd and ss states and M − for the dū state. The qq pair observed in the final two-meson state may come from a very complicated diagram involving many quarks and gluons. Flavor topology avoids these complications by focusing on the vertex in the diagram which creates this qq pair. There are only two possible vertices describing this pair creation, one where the pair is created from a gluon and one in which it is created from a W boson. The diagrams illustrated in figs. 1-7 show all possible diagrams in which a bū initial state enters a black box and emerges as a state of a quark-antiquark pair and a boson, W or gluon, that hadronizes into the final state by QCD...

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“…$ production by real photons has been observed by Knapp etd.? Nash et al, 1 Camerini et al, 8 and Gittelman et al 9 The spectrometer in Fig. 1, in part described elsewhere, 10 was illuminated by 4x 10 11 beam muons.…”

Section: " 5 *mentioning

confidence: 99%