What if the Higgs couplings to W and Z bosons are larger than in the Standard Model?

We derive a general sum rule relating the Higgs coupling to W and Z bosons to the total cross section of longitudinal gauge boson scattering in I=0,1,2 isospin channels. The Higgs coupling larger than in the Standard Model implies enhancement of the I=2 cross section. Such an enhancement could arise if the Higgs sector is extended by an isospin-2 scalar multiplet including a doubly charged, singly charged, and another neutral Higgs.Comment: 11 pages, no figures. v2: comments and references added. v3: early QCD references adde

Descent Relations and Oscillator Level Truncation Method

We reexamine the oscillator level truncation method in the bosonic String Field Theory (SFT) by calculation the descent relation =Z_3<V_2|. For the ghost sector we use the fermionic vertices in the standard oscillator basis. We propose two new schemes for calculations. In the first one we assume that the insertion satisfies the overlap equation for the vertices and in the second one we use the direct calculations. In both schemes we get the correct structures of the exponent and pre-exponent of the vertex <V_2|, but we find out different normalization factors Z_3.Comment: 21 pages, 10 figures, Late

Bubbles on Manifolds with a U(1) Isometry

We investigate the construction of five-dimensional, three-charge supergravity solutions that only have a rotational U(1) isometry. We show that such solutions can be obtained as warped compactifications with a singular ambi-polar hyper-Kahler base space and singular warp factors. We show that the complete solution is regular around the critical surface of the ambi-polar base. We illustrate this by presenting the explicit form of the most general supersymmetric solutions that can be obtained from an Atiyah-Hitchin base space and its ambi-polar generalizations. We make a parallel analysis using an ambi-polar generalization of the Eguchi-Hanson base space metric. We also show how the bubbling procedure applied to the ambi-polar Eguchi-Hanson metric can convert it to a global AdS_2xS^3 compactification.Comment: 33 pages, 5 figures, LaTeX; references adde

Integrable Circular Brane Model and Coulomb Charging at Large Conduction

We study a model of 2D QFT with boundary interaction, in which two-component massless Bose field is constrained to a circle at the boundary. We argue that this model is integrable at two values of the topological angle, $\theta =0$ and $\theta=\pi$. For $\theta=0$ we propose exact partition function in terms of solutions of ordinary linear differential equation. The circular brane model is equivalent to the model of quantum Brownian dynamics commonly used in describing the Coulomb charging in quantum dots, in the limit of small dimensionless resistance $g_0$ of the tunneling contact. Our proposal translates to partition function of this model at integer charge.Comment: 20 pages, minor change

Spinning Conformal Correlators

We develop the embedding formalism for conformal field theories, aimed at doing computations with symmetric traceless operators of arbitrary spin. We use an index-free notation where tensors are encoded by polynomials in auxiliary polarization vectors. The efficiency of the formalism is demonstrated by computing the tensor structures allowed in n-point conformal correlation functions of tensors operators. Constraints due to tensor conservation also take a simple form in this formalism. Finally, we obtain a perfect match between the number of independent tensor structures of conformal correlators in d dimensions and the number of independent structures in scattering amplitudes of spinning particles in (d+1)-dimensional Minkowski space.Comment: 46 pages, 3 figures; V2: references added; V3: tiny misprint corrected in (A.9

Блокада запирательного нерва под двойным контролем ультразвука и нейростимуляции при трансуретральной резекции боковой стенки мочевого пузыря

50 patients were enrolled in the prospective randomized trials; they all underwent transurethral resection of lateral bladder wall tumors. In general anesthesia group (GA) (n = 25), muscle relaxants were used for general anesthesia; in the group of ultrasound + neurostimulation (US + NS) (n = 25), spinal anesthesia was performed through obturator nerve block with a 2% lidocaine solution of 10 ml under double control: ultrasound navigation and neurostimulation.Results. An adductor spasm was observed in 5 (20%) patients of the GA group; in the US+ NS group, it was absent (p = 0.025). The frequency of arterial hypotension in the US + NS group was lower compared to the GA group 0 vs 32% (p = 0.004), as well as the frequency of sinus bradycardia: 16% versus 48% (p = 0.032). The patient’s stay in the operating room in the US + NS group was 42 (38; 50) minutes versus 60 (50; 85) minutes in the GA group (p = 0.002). Spinal anesthesia with the obturator nerve block under double control guaranteed the absence of adductor spasm during resection of lateral bladder wall tumors along with lower frequency of arterial hypotension, sinus bradycardia, as well as a reduction of the time spent in the operating room.В проспективном рандомизированном исследовании 50 больным в связи с новообразованием, расположенным на боковой стенке мочевого пузыря, выполнена трансуретральная резекция мочевого пузыря. В группе общей анестезии (ОА) (n = 25) проводили общую анестезию с использованием миорелаксантов, в группе ультразвук + нейростимуляция (УЗ + НС) (n = 25) выполняли спинальную анестезию с блокадой запирательного нерва 2%-ным раствором лидокаина 10 мл под двойным контролем: с помощью ультразвуковой навигации и нейростимуляции.Результаты. Спазм приводящих мышц бедра отмечался у 5 (20%) пациентов группы ОА, в группе УЗ + НС отсутствовал (p = 0,025). Частота артериальной гипотензии в группе УЗ + НС была ниже, чем в группе ОА: 0 против 32% (p = 0,004), как и частота синусовой брадикардии: 16% против 48% (p = 0,032). Время пребывания больного в операционной в группе УЗ + НС составило 42 (38; 50) мин против 60 (50; 85) мин в группе ОА (p = 0,002). Спинальная анестезия с блокадой запирательного нерва под двойным контролем гарантировала отсутствие спазма приводящих мышц бедра во время резекции боковой стенки мочевого пузыря на фоне меньшей частоты артериальной гипотензии, синусовой брадикардии, а также сокращение времени пребывания в операционной

Conformal symmetry in non-local field theories

We have shown that a particular class of non-local free field theory has conformal symmetry in arbitrary dimensions. Using the local field theory counterpart of this class, we have found the Noether currents and Ward identities of the translation, rotation and scale symmetries. The operator product expansion of the energy-momentum tensor with quasi-primary fields is also investigated.Comment: 15 pages, V2 (Some references added) V3(published version

On the existence of supergravity duals to D1--D5 CFT states

We define a metric operator in the 1/2-BPS sector of the D1-D5 CFT, the eigenstates of which have a good semi-classical supergravity dual; the non-eigenstates cannot be mapped to semi-classical gravity duals. We also analyse how the data defining a CFT state manifests itself in the gravity side, and show that it is arranged into a set of multipoles. Interestingly, we find that quantum mechanical interference in the CFT can have observable manifestations in the semi-classical gravity dual. We also point out that the multipoles associated to the normal statistical ensemble fluctuate wildly, indicating that the mixed thermal state should not be associated to a semi-classical geometry.Comment: 22 pages, 2 figures. v2 : references added, typos correcte

An Infinite-Dimensional Family of Black-Hole Microstate Geometries

We construct the first explicit, smooth, horizonless black-hole microstate geometry whose moduli space is described by an arbitrary function of one variable and is thus infinite-dimensional. This is achieved by constructing the scalar Green function on a simple D6 anti-D6 background, and using this Green function to obtain the fully back-reacted solution for a supertube with varying charge density in this background. We show that this supertube can store parametrically more entropy than in flat space, confirming the entropy enhancement mechanism that was predicted using brane probes. We also show that all the local properties of the fully back-reacted solution can, in fact, be obtained using the DBI action of an appropriate brane probe. In particular, the supergravity and the DBI analysis yield identical functional bubble equations that govern the relative locations of the centers. This indicates that there is a non-renormalization theorem that protects these functional equations as one moves in moduli space. Our construction creates configurations that are beyond the scope of recent arguments that appear to put strong limits on the entropy that can be found in smooth supergravity solutions.Comment: 46 pages, 1 figure, LaTe