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Related papers: $D$-$\bar D$ Mixing in Heavy Quark Effective Field…

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We perform a quantitative analysis of $D\bar{D}$ mixing in Heavy Quark Effective Field Theory (HqEFT) including leading order QCD corrections. We find an enhancement of the short-distance contribution by a factor of two or three.

High Energy Physics - Phenomenology · Physics 2010-11-01 Thorsten Ohl , Giulia Ricciardi , Elizabeth H. Simmons

In a series of three lectures, I review the theory and phenomenology of heavy quark masses and mixing angles and the status of their determination. In addition, I give an introduction to heavy quark symmetry, with the main emphasis on the…

High Energy Physics - Phenomenology · Physics 2016-10-26 M. Neubert

We provide a comprehensive, up-to-date analysis of possible New Physics contributions to the mass difference $\Delta M_D$ in $D^0$-${\bar D}^0$ mixing. We consider the most general low energy effective Hamiltonian and include leading order…

High Energy Physics - Phenomenology · Physics 2008-11-26 Eugene Golowich , JoAnne Hewett , Sandip Pakvasa , Alexey A. Petrov

Complementing the presentations, at this conference, of the first experimental evidence for $D$ mixing found at BaBar and Belle, I discuss the theoretical status of $D$ mixing.

High Energy Physics - Phenomenology · Physics 2007-05-23 Patricia Ball

The decays of $D$ mesons to $K l \nu$ and $K^* l \nu$ final states exhibit significant deviations from the predictions of heavy-quark symmetry, as one might expect since the strange quark's mass is of the same order as the QCD scale.…

High Energy Physics - Phenomenology · Physics 2009-10-22 James F. Amundson , Jonathan L. Rosner

We consider propagation of heavy quarks in QCD matter. Because of large quark mass, the radiative quark energy loss appears to be qualitatively different from that of light quarks at all energies of practical importance. Finite quark mass…

High Energy Physics - Phenomenology · Physics 2016-09-06 Yu. L. Dokshitzer , D. E. Kharzeev

Within the framework of heavy quark effective theory and chiral perturbation theory, masses and splittings of heavy charm mesons are studied. A mass formula is used for comprehensive analysis of low lying charm meson states.The variation of…

High Energy Physics - Phenomenology · Physics 2012-02-01 S. Singh , M. Batra , A. Upadhyay

Heavy quarkonium hybrids are studied in an effective field theory framework. Coupled and uncoupled Schr\"odinger equations are obtained for different quantum numbers of the hybrid states. The results are discussed and compared to other…

High Energy Physics - Phenomenology · Physics 2016-11-03 Matthias Berwein

We present the first step towards the estimation of finite volume effects in heavy-light meson systems using heavy meson chiral perturbation theory. We demonstrate that these effects can be amplified in both light-quark and heavy-quark mass…

High Energy Physics - Lattice · Physics 2008-11-26 C. -J. David Lin

New physics at high energy scale often contributes to K-\bar K and D-\bar D mixings in an approximately SU(2)_L invariant way. In such a case, the combination of measurements in these two systems is particularly powerful. The resulting…

High Energy Physics - Phenomenology · Physics 2009-06-30 Kfir Blum , Yuval Grossman , Yosef Nir , Gilad Perez

I discuss how the novel experimental data on D0 - D0bar mixing can be combined to provide information on the fundamental theoretical quantities describing the mixing itself. I then discuss the theoretical impact of the new data, focusing in…

High Energy Physics - Phenomenology · Physics 2008-11-26 Diego Guadagnoli

The D^0-D^0(bar) mixing is analyzed in a weak gauged U(4)_L x U(4)_R chiral lagrangian model where the electroweak interaction is introduced as a gauge theory over the meson degrees of freedom. This model allows a particular realization of…

High Energy Physics - Phenomenology · Physics 2009-10-30 G. Amoros , F. J. Botella , S. Noguera , J. Portoles

The Heavy Quark Effective Theory provides a systematic method to estimate a mixing angle of hadron states in a heavy quark, such as the charm quark (c) and the bottom quark (b). By using this method, the mixing angle of the baryons…

High Energy Physics - Phenomenology · Physics 2021-02-03 Yoshimitsu Matsui

$D-\bar D$ mixing is the source of the largest theoretical uncertainty in the extraction of $\gamma$ from $B\to D K$ decays. In the Standard Model, the mixing can have a rate close to its current experimental upper bound and is…

High Energy Physics - Phenomenology · Physics 2009-11-11 Yuval Grossman , Abner Soffer , Jure Zupan

Charmonium states can decay into pairs of $D$ and $\overline{D}$ mesons if their masses are above the allowed decay thresholds. In general $c\bar{c}$ states near threshold will also undergo mixing with $D\overline{D}$ molecular (or…

High Energy Physics - Lattice · Physics 2010-11-05 Gunnar Bali , Christian Ehmann

I give a brief outline of the theoretical framework for the modern treatment of the strong interaction effects in heavy quark decays, based on first principles of QCD. This model-independent approach is required to meet the precision of…

High Energy Physics - Phenomenology · Physics 2014-11-17 N. Uraltsev

The search for $D^0\bar{D}^0$ mixing may carry a large discovery potential for new physics. This paper discusses the techniques, current experimental status, and future prospects for the mixing search. Some new ideas, applicable to future…

High Energy Physics - Phenomenology · Physics 2010-12-13 Tiehui , Liu

A brief overview of the theory of open heavy flavor dynamics in QCD matter produced in high energy heavy-ion collisions is presented. First, we will summarise the phenomenological efforts to estimate the heavy quark diffusion coefficients…

Nuclear Theory · Physics 2023-08-03 Santosh K. Das

The search for $D^0\bar{D}^0$ mixing may carry a large discovery potential for new physics since the $D^0\bar{D}^0$ mixing rate is expected to be small in the Standard Model. This paper gives a brief review of the experimental techniques…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tiehui , Liu

Using methods of effective field theory, a systematic analysis of the fragmentation functions D_{a/H}(x,m_Q) of a hadron H containing a heavy quark Q is performed (with a=Q,Q_bar,q,q_bar,g). By integrating out pair production of virtual and…

High Energy Physics - Phenomenology · Physics 2007-06-15 Matthias Neubert
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