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Report of Contributions DPF 2011 Report of Contributions https://indico.cern.ch/e/129980 DPF 2011 / Report of Contributions Possible Existence of Overlapping … Contribution ID: 1 Type: Poster Possible Existence of Overlapping Universe and Antiuniverse Tuesday, 9 August 2011 12:38 (1 minute) The creation of antihydrogens at CERN (1995) and Fermilab (1997) and the very recent synthe- sizing of antiheliums at CERN (2011) have invigorated the fascinating idea about the existence of separate universe and antiuniverse as a resultant of the big bang. Particularly, the production of exotic atoms composed of particles and antiparticles (e.g. positroniums, Ps, protoniums, Pn, true muoniums, Mu, and pioniums, A2π) as well as the experimental formation of positronium molecules, Ps2, and theoretical predictions of exotic four-body systems composed of matter and antimatter (e.g. Heterohydrogens, PsPn, Ps Mu, PsA2π ) open the gate in front of new research activities aiming to investigate the possible existence of overlapping universe and antiuniverse. The main goal of the present work is to discuss this possibility and show that it providesuswith satisfactory explanations of the dilemma connected with the rare existence of antimatter in our universe and the mysterious astrophysical observation of highly energetic gamma-rays occurring at the edge of our universe. Summary This work is addressing two problems, namely the rare existence of anti matter in ouruniverse and the existence of high energetic gamma- rays at its edge. Primary author: Prof. ABDEL-RAOUF, Mohamed Assad (United Arab Emirates Un iversity, College of Science) Presenter: Prof. ABDEL-RAOUF, Mohamed Assad (United Arab Emirates Un iversity, College of Science) Session Classification: Poster Session Track Classification: Particle Astrophysics and Cosmology September 30, 2021 Page 1 DPF 2011 / Report of Contributions A New Formulation of Analytic, … Contribution ID: 2 Type: Parallel contribution A New Formulation of Analytic, Non-Perturbative, Gauge-and Lorentz-Invariant QCD Tuesday, 9 August 2011 14:50 (20 minutes) A simple and previously overlooked choice of one parameter allows the Schwinger/Symanzik Gen- erating Functional of QCD to be re-written in a manifestly gauge-invariant fashion, without the need of Fadeev-Popov insertions. When combined with Fradkin functional representations for the Green’s function, G[A], of a quark in an effective color potential A, and the vacuum loop functional L[A], all QCD correlation functions can be represented as Gaussian, functional-linkage operations connecting relevant combinations of G[A] and L[A]. And because the Fradkin repre- sentations for those functionals are Gaussian in their dependence on A, the functional-linkage operation can be done exactly, and one then sees that gauge invariance here is achieved by gauge- independence, as the gauge-dependent gluon propagators exactly cancel out everywhere. In this way, the non-perturbative sums over Feynman graphs reduce to an explicit, gauge-independent functional expression. That new, final functional expression now displays a new property we call ``Effective Locality'' (EL), in which the infinite sum over infinite classes of Feynman graphs corresponds to the exchange of a well-defined ``gluon bundle'' from specific space-time points on interacting quarks and/or antiquarks. And one then sees that it is no longer possible to continue to treat quarks as ordinary particles, with well defined asymptotic momenta or positions, for they are bound objects whose transverse coordinates can never be measured exactly. Once this necessity of introducing realistic ``transverse imprecision'' is realized, and introduced into the fundamental Lagrangian, all functional sums become well-defined, and one has an analytic way of obtaining physical information. It should be noted that such progress is possible because the Fradkin representations are Potential Theory constructs, with reasonable approximations in different physical situations; e.g., at high energies, G[A] simplifies to a Bloch-Nordsieck/eikonal form. With those simplifications, and the remarkable property of EL, we have been able to calculate eikonal amplitudes for quark-antiquark scattering, and for three-quark scattering, and to extract from these eikonal functions the form of binding potentials that produce hadrons. And, most interesting, for the first time we can exhibit a mechanism which leads to effective Yukawa scattering between nucleons, including a scattering potential which becomes negative, as needed to make a deuteron from a proton and a neutron. This, to our knowledge, and for the first time ever, is Nuclear Physics from basic, realistic QCD. This work, by myself (HMF), French colleagues Grandou and Gabellini (of the Universite de Nice), and my ex-Brown student Ming Sheu, is barely 18 months old at this writing; and there are many problems remaining to be studied, such as non-perturbative renormalization theory, the quark-gluon plasma, and - indeed - all of Nuclear Physics. On the basis of what we have been able to derive up to this point, we believe that this approach to analytic QCD calculations will, in the future, become extremely useful. It should be noted that the above remarks are a description of ``textbook'' QCD, with one type of quark and the massless gluons of SU(3); flavors and electroweak effects, as well as spin and angular momentum dependences are to be added in later on. Summary This presentation describes a new, non-perturbative, gauge-invariant, analytic formulation ofQCD. When the non-perturbative sums over all relevant Feynman graphs are performed (functionally), a new property called “Effective Locality” appears, which greatly simplifies all calculations, re- ducing a Halpern-type functional integral, as well as other functional integrals associated with color dependence, into a few sets of ordinary integrals, depending on the nature of the amplitude under consideration. A fundamental shift of viewpoint, requiring the original Lagrangian tocon- tain “transverse imprecision” of the subsequently bound quarks, is then required, and is simple to initiate. Using this approach it is a simple matter to calculate quark binding potentials which produce pions and nucleons; and, for the first time ever, to generate nucleon-nucleon scattering and binding potentials, in effect obtaining Nuclear Physics from basic QCD. Primary author: FRIED, Herbert (Brown University) Co-authors: SHEU, Ming (BEA Systems); GRANDOU, Thierry (Universite de Nice); GABELLINI, Yves (Universite de Nice) Presenter: FRIED, Herbert (Brown University) Session Classification: Perturbative and non-Perturbative QCD Track Classification: Perturbative and non-Perturbative QCD September 30, 2021 Page 2 DPF 2011 / Report of Contributions Search for CP violation in the Bs - … Contribution ID: 4 Type: Parallel contribution Search for CP violation in the Bs - Bsbar system with LHCb Wednesday, 10 August 2011 17:18 (24 minutes) The determination of the mixing induced CP-violating asymmetry in 0 ! decays such as Bs J/ ϕ is one of the key goals of the LHCb experiment. Its value is predicted to be very small in the Standard Model but can be significantly enhanced in many models of New Physics. The steps towards a precise determination of this phase witha flavour-tagged, time-dependent, angular analysis of the decay 0 ! Bs J/ ϕ will be presented, and first results shown from this measurement programme, using data collected in 2010 and the early months of the 2011 run. Results will also be shown, and prospects discussed, from related measurements. Primary author: VAN EIJK, Daan (NIKHEF) Presenter: VAN EIJK, Daan (NIKHEF) Session Classification: CP-Violation Track Classification: CP-Violation September 30, 2021 Page 3 DPF 2011 / Report of Contributions Studies of b-hadron decays to char … Contribution ID: 5 Type: Parallel contribution Studies of b-hadron decays to charmless final states at LHCb Friday, 12 August 2011 10:52 (20 minutes) Studies of charmless hadronic decays of B mesons have high sensitivity to possible contributions from New Physics. Precision measurements involving these decays with charged hadrons in the final state are being performed at LHCb, notably those of CP-violating asymmetries. These measurements benefit from a trigger system which is very efficient for hadronic final states and excellent particle identification capabilities. Results will be presented based on the 2010 data, and from the first months of the 2011 run. Future prospects will be reviewed. Primary author: SAIL, Paul Douglas (Department of Physics and Astronomy-University of Glas- gow) Presenter: SAIL, Paul Douglas (Department of Physics and Astronomy-University of Glasgow) Session Classification: Heavy Flavor Physics Track Classification: Heavy Flavor Physics (bottom, charm, tau) September 30, 2021 Page 4 DPF 2011 / Report of Contributions Studies of b-hadron decays to char … Contribution ID: 6 Type: Parallel contribution Studies of b-hadron decays to charming final states at LHCb Friday, 12 August 2011 11:36 (20 minutes) We present studies from the LHCb experiment of decays of the type hb ! hcX, ± 0 where hb represents a beauty hadron (B , B or Λb) 0 + and hc a charmed hadron (D , D(∗) , Ds or Λc). Such decays are important for the determination of the CKM angle γ, a key goal of the LHCb physics programme. We exploit the data accumulated in 2010, and in the early months of the 2011 run. We report on the observation of new decay modes, and first measurements on the road to a precise determination of γ.
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