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Chiral perturbation theory for hadrons containing a heavy quark: the sequel  [PDF]
Peter Cho
Physics , 1992, DOI: 10.1016/0370-2693(92)91314-Y
Abstract: Charm and bottom mesons and baryons are incorporated into a low energy chiral Lagrangian. Interactions of the heavy hadrons with light octet Goldstone bosons are studied in a framework which represents a synthesis of chiral perturbation theory and the heavy quark effective theory. The differential decay rate for the semileptonic process $\LBzero \to \Sigma_c^{++} + e^- + \bar{\nu}_e + \pi^-$ is calculated at the zero recoil point using this hybrid formalism.
Heavy diquark effective theory and supersymmetry of hadrons containing a single heavy quark  [PDF]
Nguyen Ai Viet
Physics , 1993,
Abstract: A new supersymmetry is proposed for hadrons containing a single heavy quark. This supersymmetry is based on a new approximation to those hadrons, which we would consider as a further step beyond the spectator light diquark model of baryons. The heavy diquark effective theory is constructed by the techniques introduced in a different context by Georgi and Wise$^1$ and by Carone$^2$. This theory can be incorporated into a supersymmetric theory together with Heavy Quark Effective Theory, and leads to a common universal Isgur-Wise function for mesons and baryons./.
Factorization analysis for the fragmentation functions of hadrons containing a heavy quark
Neubert, Matthias
High Energy Physics - Phenomenology , 2007,
Abstract: 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 real heavy quarks, the fragmentation functions are matched onto a single nonperturbative function describing the fragmentation of the heavy quark Q into the hadron H in "partially quenched" QCD. All calculable, short-distance dependence on x is extracted in this step. For x->1, the remaining fragmentation function can be matched further onto a universal function defined in heavy-quark effective theory in order to factor off its residual dependence on the heavy-quark mass. By solving the evolution equation in the effective theory analytically, large logarithms of the ratio mu/m_Q are resummed to all orders in perturbation theory. Connections with existing approaches to heavy-quark fragmentation are discussed. In particular, it is shown that previous attempts to extract log^n(1-x) terms from the fragmentation function D_{Q/H}(x,m_Q) are incompatible with a proper separation of short- and long-distance effects.
Heavy-Quark Effective Theory  [PDF]
Matthias Neubert
Physics , 1996,
Abstract: We give an introduction to the heavy-quark effective theory and the $1/m_Q$ expansion, which provide the modern framework for a systematic, model-independent description of the properties and decays of hadrons containing a heavy quark. We discuss the applications of these concepts to spectroscopy and to the weak decays of $B$ mesons.
Heavy-Quark Effective Theory  [PDF]
Matthias Neubert
Physics , 1996,
Abstract: We give an introduction to the heavy-quark effective theory and the $1/m_Q$ expansion, which provide the modern framework for a systematic, model-independent description of the properties and decays of hadrons containing a heavy quark. We discuss the applications of these concepts to spectroscopy and to the weak decays of $B$ mesons.
Quark Coalescence and Elliptic Flow of Charm Hadrons  [PDF]
Zi-wei Lin,Denes Molnar
Physics , 2003, DOI: 10.1103/PhysRevC.68.044901
Abstract: Elliptic flow of charm hadrons is investigated based on the quark coalescence model. Due to the large difference between the charm quark and light quark masses, hadrons containing both light and charm quarks show a qualitatively different $v_2(p_\perp)$ from hadrons containing only light quarks. Simple relations are proposed to infer quark elliptic flow from those of hadrons. The effects of the finite momentum spread of hadron wavefunctions are also studied, and are found to be small for charm hadrons.
Interactions of R-hadrons in ATLAS  [PDF]
Aafke Christine Kraan
Physics , 2005,
Abstract: In this talk the detection possibilities of R-hadrons in the ATLAS detector are studied. R-hadrons are stable hadronized gluinos, predicted by certain supersymmetric models. Making use of fully simulated R-hadrons, signatures of single R-hadrons in the ATLAS subdetector are studied, and triggering issues are addressed. Fast simulation is used to study the discovery potential. The abundant production of R-hadrons at the LHC, will allow a quick discovery for a broad range of masses.
Exotic Hadrons in the Constituent Quark Model
Lipkin, Harry J.
High Energy Physics - Phenomenology , 2007, DOI: 10.1143/PTPS.168.15
Abstract: Exotic hadrons are important because their existence or absence can provide important clues to understanding how QCD makes hadrons from quarks and gluons. The first experimentally confirmed exotic will be the first hadron containing both $qq$ and $\bar q q$ pairs and the first hadron containing color sextet and color octet pairs. Theoretical models are not very useful because there is no accepted model for multiquark systems with color-space correlations. The constituent quark model is the only phenomenological model with predictive power that has given experimentally tested universal predictions for both mesons and baryons. This paper reviews its explanation for why there are no bound exotics and its guidance to the search for heavy-flavored exotic tetraquarks and pentaquarks. A possible supersymmetry between mesons and baryons leading to meson-baryon mass relations not easily obtained otherwise is discussed.
Spectroscopy and lifetime of bottom and charm hadrons  [PDF]
Fumihiko Ukegawa
Physics , 2000,
Abstract: We review recent experimental results on spectroscopy and lifetime of bottom and charm hadrons.
Interactions of Heavy Hadrons using Regge Phenomenology and the Quark Gluon String Model
de Boer, Y. R.;Kaidalov, A. B.;Milstead, D. A.;Piskounova, O. I.
High Energy Physics - Phenomenology , 2007, DOI: 10.1088/0954-3899/35/7/075009
Abstract: The search for stable heavy exotic hadrons is a promising way to observe new physics processes at collider experiments. The discovery potential for such particles can be enhanced or suppressed by their interactions with detector material. This paper describes a model for the interactions in matter of stable hadrons containing an exotic quark of charges $\pm {1/3}e$ or $\pm {2/3}e$ using Regge phenomenology and the Quark Gluon String Model. The influence of such interactions on searches at the LHC is also discussed.
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