نتایج جستجو برای: charm bond
تعداد نتایج: 75189 فیلتر نتایج به سال:
The charm physics program accessible to a Tau-Charm Factory is summarized. Semileptonic,’ leptonic, hadronic, rare and forbidden charm decay modes are discussed, as well as 00 charm sector. The theoretical b” mixing and CP violation in the 73 ectations in the Standard Model and beyond as well as the experiment capabilities of a Tau-Charm Factory are examined for each of the above processes.
Charm production from the direct reconstruction of D (D → Kπ up to 2 GeV/c) and indirect lepton measurements via charm semileptonic decays (c → e+X at 0.9<pT<5.0 GeV/c and c → μ + X at 0.17<pT<0.25 GeV/c) at sNN = 200 GeV Au+Au collisions are analyzed. The transverse momentum (pT ) spectra and the nuclear modification factors for D and for leptons from heavy flavor decays is presented. Scaling ...
We present updated results of an SU(3)-flavor analysis of D→ PP decay data including linear breaking and no further assumptions. The global fit is consistent with nominal (∼ 30%) SU(3)F breaking and returns enhanced penguin (triplet) contributions. Their size is driven, in addition to ∆ACP, by the CP asymmetries of D0→ KSKS, Ds→ KSπ and Ds→ K+π0 decays. It is therefore especially important to i...
A k-ary charm bracelet is an equivalence class of length n strings with the action on the indices by the additive group of the ring of integers modulo n extended by the group of units. By applying an O(n3) amortized time algorithm to generate charm bracelet representatives with a specified content, we construct 29 new periodic Golay pairs of length 68.
We give a mass formula for computing the mass spectrum of mesons. By this formula we show that there are many mesons with their masses corresponding to a prime number. In particular we show that all strange mesons are with their masses corresponding to a prime number. With these prime numbers indexing the mesons we give a classification of mesons. We set up a knot model of mesons to derive this...
In this talk I brie y review the cosmological importance of CP violation and the status of calculations of baryogenisis in the context of the Standard Model. I then turn to a discussion of Standard Model Predictions for CP violation in B decays, stressing the importance of multiple measurements to overconstrain the model parameters and thus search for indications of beyond-Standard-Model physic...
دست یابی به سیل ایده آل در ترمیم های کامپوزیتی یکی از مهمترین اهداف دندانپزشکی ترمیمی در سالهای اخیر بوده است. بررسی نفوذ رنگ رایج ترین شیوه مطالعه ریز نشت است. این روش از ارزیابی سه بعدی حساسیت کمتری دارد. به دلیل فقدان مطالعات ارزیابی ریزنشت کامپوزیت ها به روشfluid filtration در دندان های شیری، در این تحقیق بر آن شدیم تا میزان ریزنشت باندینگهایself etch و total etchرا در دندان های شیری به روش...
abstract the influence of cation?? and anion?? interactions on the strength and nature of n…h hydrogen bond has been investigated by quantum chemical calculations in s-triazine…3hf complex. ab initio calculations were performed at mp2/6-311++g(d,p) level of theory. the natural bond orbital (nbo) analysis and the bader’s quantum theory of atoms in molecules (aim) were also used to elucidate t...
During the last few years, the main emphasis in the study of heavy particle production (i.e. e+emainly charm) by other means than annihilation has been on the production mechanisms. Because of the relative cleanliness of the charm signal in the e+eprocess, most of the data on the properties of the charm particles has originated from that source. There are already indications, however, that this...
برآورد جداول داده- ستانده منطقه ای، به روش آماری پرهزینه است. در نتیجه، پژوهشگران از روش های غیرآماری استفاده می نمایند. در این مقاله با استفاده از دو روش غیرآماری، charm و aflq،جدول استان خوزستان برآورد می شود. روش charm امکان برآورد صادرات، صادرات مجدد و درجه ناهمگنی کالاها را فراهم می کند. در حالی که روش aflq تعدیلات اندازه منطقه و بخش تخصصی را در نظر می گیرد. نتایج نشان می دهد که رتبه بندی ...
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