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Calculatoin and experimental study of the retracting force for magnetic spring of two types
http://inspirehep.net/record/1325151
physics.ins-detarXiv:1410.8130<br />Ukr. J. Phys. 2014. Vol. 59, No. 10, pp. 1020-1025<br /><br />by: Tsivilitsin, V.<br /><strong>Abstract:</strong> <br />Designs for magnetic springs of two types have been proposed, and the methods of calculation of their retracting forces have been developed. Formulas are obtained for the retracting force in the main section of spring force characteristics. Experimental data are in good agreement with the results of theoretical calculations. The force characteristics of the proposed magnetic spring constructions can be varied for a specific application. The derived formulas are verified experimentally. Ways to change the force characteristics of magnetic springs according to specific requirements are demonstrated.Tsivilitsin, V.Fri, 31 Oct 2014 04:48:49 GMThttp://inspirehep.net/record/1325151Nuclear Energy Density Optimization: UNEDF2
http://inspirehep.net/record/1325150
nucl-tharXiv:1410.8303<br /><br />by: Kortelainen, M.<br /><strong>Abstract:</strong> <br />The parameters of the UNEDF2 nuclear energy density functional (EDF) model were obtained in an optimization to experimental data consisting of nuclear binding energies, proton radii, odd-even mass staggering data, fission-isomer excitation energies, and single particle energies. In addition to parameter optimization, sensitivity analysis was done to obtain parameter uncertainties and correlations. The resulting UNEDF2 is an all-around EDF. However, the sensitivity analysis also demonstrated that the limits of current Skyrme-like EDFs have been reached and that novel approaches are called for.Kortelainen, M.Fri, 31 Oct 2014 04:48:09 GMThttp://inspirehep.net/record/1325150A Generalized Linear Transport Model for Spatially-Correlated Stochastic Media
http://inspirehep.net/record/1325149
physics.opticsarXiv:1410.8200<br />JPL-CL#14-4491<br /><br />by: Davis, Anthony B.<br /><strong>Abstract:</strong> <br />We formulate a new model for transport in stochastic media with long-range spatial correlations where exponential attenuation (controlling the propagation part of the transport) becomes power law. Direct transmission over optical distance $\tau(s)$, for fixed physical distance $s$, thus becomes $(1+\tau(s)/a)^{-a}$, with standard exponential decay recovered when $a\to\infty$. Atmospheric turbulence phenomenology for fluctuating optical properties rationalizes this switch. Foundational equations for this generalized transport model are stated in integral form for $d=1,2,3$ spatial dimensions. A deterministic numerical solution is developed in $d=1$ using Markov Chain formalism, verified with Monte Carlo, and used to investigate internal radiation fields. Standard two-stream theory, where diffusion is exact, is recovered when $a=\infty$. Differential diffusion equations are not presently known when $a<\infty$, nor is the integro-differential form of the generalized transport equation. Monte Carlo simulations are performed in $d=2$, as a model for transport on random surfaces, to explore scaling behavior of transmittance $T$ when transport optical thickness $\tau_\text{t} \gg 1$. Random walk theory correctly predicts $T \propto \tau_\text{t}^{-\min\{1,a/2\}}$ in the absence of absorption. Finally, single scattering theory in $d=3$ highlights the model's violation of angular reciprocity when $a<\infty$, a desirable property at least in atmospheric applications. This violation is traced back to a key trait of generalized transport theory, namely, that we must distinguish more carefully between two kinds of propagation: one that ends in a virtual or actual detection, the other in a transition from one position to another in the medium.Davis, Anthony B.Fri, 31 Oct 2014 04:48:09 GMThttp://inspirehep.net/record/1325149Recent Highlights from the PHENIX Heavy-Ion Program at RHIC
http://inspirehep.net/record/1325148
nucl-exarXiv:1410.8318<br /><br />by: Sahlmueller, Baldo<br /><strong>Abstract:</strong> <br />Over the last decade it has been established that a quark-gluon plasma (QGP) is formed in ultrarelativistic A+A collisions at RHIC energies. In recent years, detector upgrades have enabled the detailed study of this hot and dense matter. Important probes, among others, are direct photons and heavy flavor observables. Although the RHIC d+Au program was originally undertaken to study initial state and cold nuclear matter effects, recent measurements at both RHIC (d+Au) and the LHC (p+Pb) have found evidence for collective phenomena in these small systems.Sahlmueller, BaldoFri, 31 Oct 2014 04:47:13 GMThttp://inspirehep.net/record/1325148A measurement of the neutron to 199Hg magnetic moment ratio
http://inspirehep.net/record/1325147
nucl-exarXiv:1410.8259<br /><br />by: Afach, S.<br /><strong>Abstract:</strong> <br />The neutron gyromagnetic ratio has been measured relative to that of the 199Hg atom with an uncertainty of 0.8 ppm. We employed an apparatus where ultracold neutrons and mercury atoms are stored in the same volume and report the result $\gamma_{\rm n}/\gamma_{\rm Hg} = 3.8424574(30)$.Afach, S.Fri, 31 Oct 2014 04:47:11 GMThttp://inspirehep.net/record/1325147ALICE results on vector meson photoproduction in ultra-peripheral p-Pb and Pb-Pb collisions
http://inspirehep.net/record/1325146
nucl-exarXiv:1410.8192<br /><br />by: Kryshen, E.L.<br /><strong>Abstract:</strong> <br />Lead nuclei, accelerated at the LHC, are sources of strong electromagnetic fields that can be used to measure photon-induced interactions in a new kinematic regime. These interactions can be studied in ultra-peripheral p-Pb and Pb-Pb collisions where impact parameters are larger than the sum of the nuclear radii and hadronic interactions are strongly suppressed. Heavy quarkonium photoproduction is of particular interest since it is sensitive to the gluon distribution in the target. The ALICE Collaboration has studied J/psi and psi(2S) photoproduction in ultra-peripheral Pb-Pb collisions and exclusive J/psi photoproduction off protons in ultra-peripheral p-Pb collisions at the LHC. Implications for the study of gluon density distributions and nuclear gluon shadowing are discussed. Recent ALICE results on rho photoproduction are also presented.Kryshen, E.L.Fri, 31 Oct 2014 04:47:10 GMThttp://inspirehep.net/record/1325146Partial Wave Analysis of the Reaction $p(3.5 GeV)+p \to pK^+\Lambda$ to Search for the "$ppK^-$" Bound State
http://inspirehep.net/record/1325145
nucl-exarXiv:1410.8188<br /><br />by: Agakishiev, G.<br /><strong>Abstract:</strong> <br />Employing the Bonn-Gatchina partial wave analysis framework (PWA), we have analyzed HADES data of the reaction $p(3.5GeV)+p\to pK^{+}\Lambda$. This reaction might contain information about the kaonic cluster "$ppK^-$" via its decay into $p\Lambda$. Due to interference effects in our coherent description of the data, a hypothetical $\overline{K}NN$ (or, specifically "$ppK^-$") cluster signal must not necessarily show up as a pronounced feature (e.g. a peak) in an invariant mass spectra like $p\Lambda$. Our PWA analysis includes a variety of resonant and non-resonant intermediate states and delivers a good description of our data (various angular distributions and two-hadron invariant mass spectra) without a contribution of a $\overline{K}NN$ cluster. At a confidence level of CL$_{s}$=95\% such a cluster can not contribute more than 2-12\% to the total cross section with a $pK^{+}\Lambda$ final state, which translates into a production cross-section between 0.7 $\mu b$ and 4.2 $\mu b$, respectively. The range of the upper limit depends on the assumed cluster mass, width and production process.Agakishiev, G.Fri, 31 Oct 2014 04:47:08 GMThttp://inspirehep.net/record/1325145ADHM Revisited: Instantons and Wilson Lines
http://inspirehep.net/record/1325144
hep-tharXiv:1410.8523<br /><br />by: Tong, David<br /><strong>Abstract:</strong> <br />We revisit the well-studied D0-D4 system of D-branes and its relationship to the ADHM construction. It is well known that the D0-branes appear as instantons in the D4-brane worldvolume. We add a Wilson line to the D4-brane in the guise of an extended fundamental string and determine how this affects the D0-brane dynamics. As the D0-brane moves in the presence of the Wilson line, it experiences a Lorentz force, proportional to its Yang-Mills gauge connection. From the perspective of the D0-brane quantum mechanics, this force emerges through the ADHM construction of the self-dual gauge connection.Tong, DavidFri, 31 Oct 2014 04:45:53 GMThttp://inspirehep.net/record/1325144Quantum Spherical Spins with Local Symmetry
http://inspirehep.net/record/1325143
hep-tharXiv:1410.8500<br /><br />by: Gomes, Pedro R. S.<br /><strong>Abstract:</strong> <br />We construct a quantum system of spherical spins with a continuous local symmetry. The model is exactly soluble in the thermodynamic limit and exhibits a number of interesting properties. We show that the local symmetry is spontaneously broken at finite as well as zero temperatures, implying the existence of classical and quantum phase transitions with a nontrivial critical behavior. The dynamical generation of gauge fields and the equivalence with the $CP^{(\mathcal{N}-1)}$ model in the limit $\mathcal{N}\rightarrow\infty$ are investigated. The dynamical generation of gauge fields is a consequence of the restoration of the local symmetry.Gomes, Pedro R. S.Fri, 31 Oct 2014 04:45:52 GMThttp://inspirehep.net/record/1325143Wall Crossing Invariants: from quantum mechanics to knots
http://inspirehep.net/record/1325142
hep-tharXiv:1410.8482<br />FIAN-TD-14-14<br />ITEP-TH-28-14<br /><br />by: Galakhov, D.<br /><strong>Abstract:</strong> <br />We offer a pedestrian level review of the wall-crossing invariants. The story begins from the scattering theory in quantum mechanics where the spectrum reshuffling can be related to permutations of S-matrices. In non-trivial situations, starting from spin chains and matrix models, the S-matrices are operator-valued and their algebra is described in terms of R- and mixing (Racah) U-matrices. Then, the Kontsevich-Soibelman invariants are nothing but the standard knot invariants made out of these data within the Reshetikhin-Turaev-Witten approach. The R- and Racah matrices acquire a relatively universal form in the quasiclassical limit, where the basic reshufflings with the change of moduli are those of the Stokes line. Natural from this point of view are matrices provided by the modular transformations of conformal blocks (with the usual identification R=T and U=S), and in the simplest case of the first degenerate field (2,1), when the conformal blocks satisfy a second order Shroedinger-like equation, the invariants coincide with the Jones (N=2) invariants of the associated knots. Another possibility to construct knot invariants is to realize the cluster coordinates associated with reshufflings of the Stokes lines immediately in terms of check-operators acting on the solutions to the Knizhnik-Zamolodchikov equations. Then, the R-matrices are realized as products of successive mutations in the cluster algebra and are manifestly described in terms of quantum dilogarithms ultimately leading to the Hikami construction of knot invariants.Galakhov, D.Fri, 31 Oct 2014 04:45:50 GMThttp://inspirehep.net/record/1325142Construction of bosonic symmetry-protected-trivial and topologically-ordered states that have no topological excitations via $G\times SO(\infty)$ and $O(\infty)$ non-linear $\sigma$-models
http://inspirehep.net/record/1325141
cond-mat.str-elarXiv:1410.8477<br /><br />by: Wen, Xiao-Gang<br /><strong>Abstract:</strong> <br />We use $G\times SO(\infty)$ and $O(\infty)$ non-linear $\sigma$-models (NL$\sigma$Ms) to systematically construct the so called L-type symmetry-protected-trivial (SPT) phases, as well as the L-type topologically-ordered phases that have no topological excitations [which will be referred as invertible topologically-ordered (iTO) phases described by $iTO_L^d$], for bosonic systems. We find that those L-type iTO phases are not described by oriented cobordism groups $\Omega^{SO}_d$, but by their subgroups. For example, those L-type topologically-ordered phases in 2+1D are classified by $Z$, generated by the $(E_8)^3$ bosonic quantum Hall state with chiral central charge $c=24$. We also studied bosonic SPT states. Let $LSPT_G^d$ be the Abelian group formed by the L-type $G$ SPT phases in $d$-dimensional space-time produced by the NL$\sigma$Ms. We find that the L-type time-reversal $Z_2^T$ SPT phases are given by $LSPT_{Z_2^T}^1 = LSPT_{Z_2^T}^3 = LSPT_{Z_2^T}^5 =0$, $LSPT_{Z_2^T}^2= Z_2$, $LSPT_{Z_2^T}^4= 2Z_2$, etc. They are not given by unoriented cobordism groups $\Omega^{O}_d$ (for example $LSPT_{Z_2^T}^5\neq \Omega^O_5$). In general, we find that all our constructed SPT orders are classified by group cohomology $LSPT_G^d=\oplus_{k=1}^{d-1} H^k(G,iTO_L^{d-k})\oplus H^d(G,R/Z)$ where $G$ may contain time-reversal. Here $H^d(G,R/Z)$ is the group cohomology class with coefficient $R/Z$, which describes the so called pure SPT phases with pure gauge anomalous boundary. On the other hand, the group cohomology class $\oplus_{k=1}^{d-1} H^k(G,iTO_L^{d-k})$ describes the so called mixed SPT phases with mixed gauge-gravity anomalous boundary. (Those mixed SPT phases were also referred as beyond-group-cohomology, but now we see that they are within another group cohomology classification.)Wen, Xiao-GangFri, 31 Oct 2014 04:45:50 GMThttp://inspirehep.net/record/1325141Fatal attraction: more on decaying anti-branes
http://inspirehep.net/record/1325140
hep-tharXiv:1410.8476<br />UUITP-14-14<br /><br />by: Danielsson, Ulf H.<br /><strong>Abstract:</strong> <br />We elaborate on the decay of branes inside throat geometries that are supported by flux carrying charges opposite to the brane. Our main point is that such backgrounds necessarily have a local, possibly diverging, pile up of brane-charges dissolved in flux around the anti-brane due to the (fatal) attraction of the flux towards the brane. We explain that this causes enhanced brane-flux annihilation and is in tension with the idea that anti-branes can be used to construct meta-stable vacua. We argue that stable configurations -- if they at all exist -- are not obtainable within SUGR. The problem we point out is already present when the back-reaction is confined in the IR and the associated uplift energy small. Our results are valid in the regime that is complementary to a recent analysis of Bena et. al.Danielsson, Ulf H.Fri, 31 Oct 2014 04:45:49 GMThttp://inspirehep.net/record/1325140Deformations of Coisotropic Submanifolds in Abstract Jacobi Manifolds
http://inspirehep.net/record/1325139
math.DGarXiv:1410.8446<br /><br />by: Lê, Hông Vân<br /><strong>Abstract:</strong> <br />In this paper, using the Atiyah algebroid and first order multi-differential calculus on non-trivial line bundles, we attach an $L_\infty$-algebra to any coisotropic submanifold $S$ in an abstract (or Kirillov's) Jacobi manifold. Our construction generalizes and unifies analogous constructions in symplectic, Poisson case, and locally conformal symplectic geometry. As a new special case, we attach an $L_\infty$-algebra to any coisotropic submanifold in a contact manifold, including Legendrian submanifolds. The $L_\infty$-algebra of a coisotropic submanifold $S$ governs the (formal) deformation problem of $S$.Lê, Hông VânFri, 31 Oct 2014 04:45:49 GMThttp://inspirehep.net/record/1325139Defect (p,q) Five-branes
http://inspirehep.net/record/1325138
hep-tharXiv:1410.8403<br />TIT-HEP-640<br /><br />by: Kimura, Tetsuji<br /><strong>Abstract:</strong> <br />We study the local description of composite five-branes of codimension two. The formulation is constructed by virtue of the $SL(2,{\mathbb Z}) \times SL(2,{\mathbb Z)}$ monodromy associated with two-torus. Applying the conjugate monodromy transformations to the complex structures of the two-torus, we obtain the field configuration of the defect $(p,q)$ five-branes. This is the composite state of $p$ defect NS5-branes and $q$ exotic $5^2_2$-branes. We also obtain a new hyper-K\"{a}hler geometry. This is an ALG space, a generalization of an ALF space which asymptotically has a tri-holomorphic two-torus action. This geometry appears in the conjugate configuration of the single defect KK5-brane.Kimura, TetsujiFri, 31 Oct 2014 04:45:49 GMThttp://inspirehep.net/record/1325138Electromagnetic Field in de Sitter Expanding Universe: Majorana--Oppenheimer Formalism, Exact Solutions in non-Static Coordinates
http://inspirehep.net/record/1325137
math-pharXiv:1410.8324<br />Nonlinear Phenomena in Complex Systems. 2014. Vol. 17, no. 1 . P.
17--39<br /><br />by: Veko, O.V.<br /><strong>Abstract:</strong> <br />Tetrad-based generalized complex formalism by Majorana--Oppenheimer is applied to treat electromagnetic field in extending de Sitter Universe in on-static spherically-symmetric coordinates. With the help of Wigner D-functions, we separate angular dependence in the complex vector field E_{j}(t,r)+i B_{j}(t,r) from (t,r)-dependence. The separation parameter arising here instead of frequency \omega in Minkowski space-time is quantized, non-static geometry of the de Sitter model leads to definite dependence of electromagnetic modes on the time variable. Relation of 3-vector complex approach to 10-dimensional Duffin-Kemmer-Petiau formalism is considered. On this base, the electromagnetic waves of magnetic and electric type have been constructed in both approaches. In Duffin-Kemmer-Petiau approach, there are constructed gradient-type solutions in Lorentz gauge.Veko, O.V.Fri, 31 Oct 2014 04:45:49 GMThttp://inspirehep.net/record/1325137Recurrence Relations of the Multi-Indexed Orthogonal Polynomials : II
http://inspirehep.net/record/1325136
math-pharXiv:1410.8236<br />DPSU-14-3<br /><br />by: Odake, Satoru<br /><strong>Abstract:</strong> <br />In a previous paper we presented $3+2M$ term recurrence relations with variable dependent coefficients for $M$-indexed orthogonal polynomials of Laguerre, Jacobi, Wilson and Askey-Wilson types. In this paper we present (conjectures of) the recurrence relations with constant coefficients for these multi-indexed orthogonal polynomials. The simplest recurrence relations have $3+2\ell$ terms, where $\ell (\geq M)$ is the degree of the lowest member of the multi-indexed orthogonal polynomials.Odake, SatoruFri, 31 Oct 2014 04:45:49 GMThttp://inspirehep.net/record/1325136Permutation Symmetry of the Scattering Equations
http://inspirehep.net/record/1325135
hep-tharXiv:1410.8184<br /><br />by: Lam, C.S.<br /><strong>Abstract:</strong> <br />Closed formulas for tree amplitudes of $n$-particle scatterings of gluon, graviton, and massless scalar particles have been proposed by Cachazo, He, and Yuan. It depends on $(n-3)$ quantities $\s_\a$ which satisfy a set of coupled {\it scattering equations}, with momentum dot products as input coefficients. These equations are known to have $(n-3)!$ solutions, hence each $\s_\a$ is believed to satisfy a single polynomial equation of degree $(n-3)!$. In this article, we derive the transformation properties of $\s_\a$ under momentum permutation, and verify them with known solutions at low $n$, and with exact solutions at any $n$ for special momentum configurations. For momentum configurations not invariant under a certain momentum permutation, new solutions can be obtained for the permuted configuration from these symmetry relations. These symmetry relations for $\s_\a$ lead to symmetry relations for the $(n-3)!+1$ coefficients of the single-variable polynomials, whose correctness are checked with the known cases at low $n$. The extent to which the coefficient symmetry relations can determine the coefficients is discussed.Lam, C.S.Fri, 31 Oct 2014 04:45:48 GMThttp://inspirehep.net/record/1325135Membrane Quantum Mechanics
http://inspirehep.net/record/1325134
hep-tharXiv:1410.8180<br /><br />by: Okazaki, Tadashi<br /><strong>Abstract:</strong> <br />We consider the multiple M2-branes wrapped on a compact Riemann surface and study the arising quantum mechanics by taking the limit where the size of the Riemann surface goes to zero. The IR quantum mechanical models resulting from the BLG-model and the ABJM-model compactified on a torus are N = 16 and N = 12 superconformal gauged quantum mechanics. After integrating out the auxiliary gauge fields we find OSp(16|2) and SU(1,1|6) quantum mechanics from the reduced systems. The curved Riemann surface is taken as a holomorphic curve in a Calabi-Yau space to preserve supersymmetry and we present a prescription of the topological twisting. We find the N = 8 superconformal gauged quantum mechanics that may describe the motion of two wrapped M2-branes in a K3 surface.Okazaki, TadashiFri, 31 Oct 2014 04:45:48 GMThttp://inspirehep.net/record/1325134On the exceptional generalised Lie derivative for $d\geq7$
http://inspirehep.net/record/1325133
hep-tharXiv:1410.8148<br /><br />by: Rosabal, J.A.<br /><strong>Abstract:</strong> <br />In this work we revisit the $E_8\times\mathbb{R}^{+}$ generalised Lie derivative encoding the algebra of diffeomorphisms and gauge transformations of compactifications of M-theory on eight-dimensional manifolds, by extending certain features of the $E_7\times\mathbb{R}^{+}$ one. Compared to its $E_d\times\mathbb{R}^{+},\ d\le 7$ counterparts, a new term is needed for closure of the algebra. However, we find that no compensating parameters need to be introduced, but rather that the new term can be written in terms of the ordinary generalised gauge parameters by means of a connection. This implies that no further degrees of freedom beyond those of the $E_{8}$ or $E_{11}$ spectrum are needed to have a well defined theory. We discuss the implications of the form of the $E_8\times\mathbb{R}^{+}$ generalised transformation on the construction of the $d=8$ generalised geometry. Finally, we suggest how to extend the Lie derivative to eleven dimensions.Rosabal, J.A.Fri, 31 Oct 2014 04:45:48 GMThttp://inspirehep.net/record/1325133Consistent Kaluza-Klein Truncations via Exceptional Field Theory
http://inspirehep.net/record/1325132
hep-tharXiv:1410.8145<br />MIT-CTP-4604<br /><br />by: Hohm, Olaf<br /><strong>Abstract:</strong> <br />We present the generalized Scherk-Schwarz reduction ansatz for the full supersymmetric exceptional field theory in terms of group valued twist matrices subject to consistency equations. With this ansatz the field equations precisely reduce to those of lower-dimensional gauged supergravity parametrized by an embedding tensor. We explicitly construct a family of twist matrices as solutions of the consistency equations. They induce gauged supergravities with gauge groups SO(p,q) and CSO(p,q,r). Geometrically, they describe compactifications on internal spaces given by spheres and (warped) hyperboloides $H^{p,q}$, thus extending the applicability of generalized Scherk-Schwarz reductions beyond homogeneous spaces. Together with the dictionary that relates exceptional field theory to D=11 and IIB supergravity, respectively, the construction defines an entire new family of consistent truncations of the original theories. These include not only compactifications on spheres of different dimensions (such as AdS$_5\times S^5$), but also various hyperboloid compactifications giving rise to a higher-dimensional embedding of supergravities with non-compact and non-semisimple gauge groups.Hohm, OlafFri, 31 Oct 2014 04:45:48 GMThttp://inspirehep.net/record/1325132$B\to\rho$, $K^*$ transition form factors in AdS/QCD model
http://inspirehep.net/record/1325131
hep-pharXiv:1410.8496<br /><br />by: Ahmady, Mohammad<br /><strong>Abstract:</strong> <br />We use the AdS/QCD distribution amplitudes for light mesons to calculate the transition form factors for B to $\rho$, $K^*$ decays. These form factors are then utilized to make predictions for the semileptonic $B\to\rho\ell\nu$ and dileptonic $B\to K^* \mu^+\mu^-$ decays. We compare our predictions to the experimental data from BaBar and LHCb.Ahmady, MohammadFri, 31 Oct 2014 04:44:03 GMThttp://inspirehep.net/record/1325131Cutting through form factors and cross sections of non-protected operators in N=4 SYM
http://inspirehep.net/record/1325130
hep-tharXiv:1410.8485<br />HU-MATH-2014-27<br />HU-EP-14-40<br /><br />by: Nandan, Dhritiman<br /><strong>Abstract:</strong> <br />We study the form factors of the Konishi operator, the prime example of non-protected operators in N=4 SYM theory, via the on-shell unitarity methods. Since the Konishi operator is not protected by supersymmetry, its form factors share many features with those in QCD, such as the occurrence of rational terms and of UV divergences that require renormalization. A subtle point is that this operator depends on the spacetime dimension. This requires a modification when calculating its form factors via unitarity methods. We derive a rigorous prescription that implements this modification to all loop orders and obtain the two-point form factor up to two-loop order and the three-point form factor to one-loop order. From these form factors, we construct an IR-finite cross section type quantity, namely the inclusive decay rate of the (off-shell) Konishi operator to any final (on-shell) state. Via the optical theorem, it is connected to the imaginary part of the two-point correlation function. We extract the Konishi anomalous dimension up to two-loop order from it.Nandan, DhritimanFri, 31 Oct 2014 04:44:03 GMThttp://inspirehep.net/record/1325130pp Interaction in Extended Air Showers
http://inspirehep.net/record/1325129
hep-pharXiv:1410.8467<br /><br />by: Kohara, A. Kendi<br /><strong>Abstract:</strong> <br />Applying the recently constructed analytic representation for the pp scattering amplitudes, we present a study of p-air cross sections, with comparison to the data from Extensive Air Shower (EAS) measurements. The amplitudes describe with precision all available accelerator data at ISR, SPS and LHC energies, and its theoretical basis, together with the very smooth energy dependence of parameters controlled by unitarity and dispersion relations, permit reliable extrapolation to higher energies and to asymptotic ranges. The comparison with cosmic ray data is very satisfactory in the whole pp energy interval from 1 to 100 TeV. High energy asymptotic behaviour of cross sections is investigated in view of the geometric scaling property of the amplitudes. The amplitudes predict that the proton does not behave as a black disk even at asymptotically high enegies, and we discuss possible non-trivial consequences of this fact for pA collision cross sections at higher energies.Kohara, A. KendiFri, 31 Oct 2014 04:44:02 GMThttp://inspirehep.net/record/1325129Connecting Leptonic CP Violation, Lightest Neutrino Mass and Baryon Asymmetry Through Type II Seesaw
http://inspirehep.net/record/1325128
hep-pharXiv:1410.8437<br /><br />by: Kalita, Rupam<br /><strong>Abstract:</strong> <br />We study the possibility of connecting leptonic Dirac CP phase $\delta$, lightest neutrino mass and baryon asymmetry of the Universe within the framework of a model where both type I and type II seesaw mechanisms contribute to neutrino mass. Type I seesaw gives rise to Tri-Bimaximal (TBM) type neutrino mixing whereas type II seesaw acts as a correction in order to generate non-zero $\theta_{13}$. We derive the most general form of type II seesaw mass matrix which can not only give rise to correct neutrino mixing angles but also can generate non-trivial value of $\delta$. Considering both the cases where type II seesaw is sub-leading and is equally dominant compared to type I seesaw, we correlate the type II seesaw term with $\delta$ and lightest neutrino mass. We further constrain the Dirac CP phase $\delta$ and hence the type II seesaw mass matrix from the requirement of producing the observed baryon asymmetry through the mechanism of leptogenesis.Kalita, RupamFri, 31 Oct 2014 04:43:59 GMThttp://inspirehep.net/record/1325128Parity Violation by a Dark Gauge Boson
http://inspirehep.net/record/1325127
hep-pharXiv:1410.8435<br />CERN-PH-TH-2014-208<br /><br />by: Lee, Hye-Sung<br /><strong>Abstract:</strong> <br />We overview the dark parity violation, which means the parity violation induced by a dark gauge boson of very small mass and coupling. When a dark gauge boson has an axial coupling, as in dark Z model, it can change the effective Weinberg angle in the low-energy experiments such as the atomic parity violation and the low-Q^2 polarized electron scatterings. Such low-energy parity tests are an excellent probe of the dark force.Lee, Hye-SungFri, 31 Oct 2014 04:43:58 GMThttp://inspirehep.net/record/1325127