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Related papers: Long-distance effects in charm mixing

200 papers

We present an overview of the recent abundant measurements for charm production at RHIC. The significant information of charm cross sections in different collision system at 200 GeV and charmed hadron freeze-out and flow properties…

Nuclear Experiment · Physics 2008-11-26 Yifei Zhang

We determine the MS-bar charm quark mass from a charmonium QCD sum rules analysis. On the theoretical side we use input from perturbation theory at O(alpha_s^3). Improvements with respect to previous O(alpha_s^3) analyses include (1) an…

High Energy Physics - Phenomenology · Physics 2013-07-30 Bahman Dehnadi , Andre H. Hoang , Vicent Mateu , S. Mohammad Zebarjad

D-meson suppression in Pb-Pb collisions at the LHC due to charm quark in-medium energy loss is estimated within a model that describes the available quenching measurements at RHIC. The result is compared to that previously published by the…

High Energy Physics - Phenomenology · Physics 2009-11-11 Andrea Dainese

I present predictions for the inclusive production of D mesons at the CERN LHC in the general-mass variable-flavor-number scheme at next-to-leading order. Numerical results are compared to data where available, and uncertainties due to…

High Energy Physics - Phenomenology · Physics 2012-06-01 H. Spiesberger

Heavy flavor supplies a chance to constrain and improve the hadronization mechanism. We have established a sequential coalescence model with charm conservation and applied it to the charmed hadron production in heavy ion collisions. The…

High Energy Physics - Phenomenology · Physics 2021-02-03 Jiaxing Zhao , Shuzhe Shi , Nu Xu , Pengfei Zhuang

We study the masses of the low-lying charmed mesons within the framework of heavy-hadron chiral perturbation theory. We work to third order in the chiral expansion, where meson loops contribute. In contrast to previous approaches, we use…

High Energy Physics - Phenomenology · Physics 2016-07-14 Mohammad H. Alhakami

Meson mixing is considered to be an ideal candidate for new physics searches. Current experimental precision has greatly increased over the recent years, excelling in several cases the theoretical precision. A possible limit in the…

High Energy Physics - Phenomenology · Physics 2018-06-01 Thomas Jubb , Matthew Kirk , Alexander Lenz , Gilberto Tetlalmatzi-Xolocotzi

I begin by commenting on the most recent experimental compilation of D^0 mixing data, emphasizing the so-called 'strong phase' issue. This is followed by a review of the theory underlying charm mixing, both Standard Model and New Physics.…

High Energy Physics - Phenomenology · Physics 2008-06-12 E. Golowich

Based on the color-spin interaction in diquarks, we argue that charmed multiquark hadrons are likely to exist. Because of the appreciable number of charm quarks produced in central nucleus-nucleus collisions at ultrarelativistic energies,…

High Energy Physics - Phenomenology · Physics 2008-11-26 Su Houng Lee , Shigehiro Yasui , Wei Liu , Che Ming Ko

It is well known that large nonfragmentational contributions to inclusive production of charmed particles appear at low energies. In the case of charm production in $B$-meson decays these contributions arise from the participation of the…

High Energy Physics - Phenomenology · Physics 2010-12-30 Alexey Novoselov

Fragmentation functions for heavy-light mesons, like the charmed D, D^* mesons, are proposed. They rest on next-to-leading QCD Perturbative Fragmentation Functions for heavy quarks, with the addition of a non-perturbative term describing…

High Energy Physics - Phenomenology · Physics 2016-09-06 M. Cacciari , M. Greco , S. Rolli , A. Tanzini

We attempt a comprehensive analysis of the low lying charm meson states which present several puzzles, including the poor determination of masses of several non-strange excited mesons. We use the well-determined masses of the ground states…

High Energy Physics - Phenomenology · Physics 2008-11-26 B. Ananthanarayan , Sunanda Banerjee , K. Shivaraj , A. Upadhyay

We compute the mass of the charm quark using both quenched and dynamical lattice QCD calculations. We examine the effects of mass dependent lattice artifacts by comparing two different formalisms for the heavy quarks. We take the continuum…

High Energy Physics - Lattice · Physics 2009-11-11 A. Dougall , C. M. Maynard , C. McNeile

In these proceedings, recent results on time-dependent and time-integrated measurements of $C\!P$ violation and of meson mixing in the charm sector are presented, including the first observation of $C\!P$ violation in the charm system.

High Energy Physics - Experiment · Physics 2019-06-27 Fabio Ferrari

We consider effective theory treatment for the lowest-lying $S$- and $P$-wave states of charmed mesons. In our analysis, quantum corrections and contributions from leading chiral and heavy quark symmetry breakings are taken into account.…

High Energy Physics - Phenomenology · Physics 2018-07-24 Mohammad H. Alhakami

We modify the mesonic wavefunction by using a short distance scale r0 in analogy with Hydrogen atom and estimate the values of masses and decay constants of the open flavour charm mesons D, Ds and Bc within the framework of a QCD Potential…

High Energy Physics - Phenomenology · Physics 2012-05-15 Krishna Kingkar Pathak , D. K. Choudhury

We review the present theoretical knowledge of the charm--strange contribution to charged--current DIS structure functions. In particular, the uncertainties arising from the choice of the factorization scale, of the massive QCD scheme, and…

High Energy Physics - Phenomenology · Physics 2016-09-06 V. Barone , U. D'Alesio , M. Genovese

Charm procceses are usually not considered to be favorable candidates in the search for new physics. Recent disagreement between experimental and lattice QCD results on the D_s decay constant has motivated us to systematically reinvestigate…

High Energy Physics - Phenomenology · Physics 2010-11-02 Svjetlana Fajfer , Ilja Dorsner , Jernej F. Kamenik , Nejc Kosnik

We analyze the neutral meson mixing by directly solving the dispersion relation obeyed by the mass and width differences of the two meson mass eigenstates. We solve for the parameters $x$ and $y$, proportional to the mass and width…

High Energy Physics - Phenomenology · Physics 2023-03-29 Hsiang-nan Li

A review of recent experimental results of Dalitz analyses of charmed meson decays into three-body final states is presented. These analyses can help in understanding the strong interaction dynamics leading to the observed light mesons…

High Energy Physics - Experiment · Physics 2008-11-26 G. Cavoto