Primera ley de la termodinámica

Este material incluye los siguientes temas: Procesos y sistemas termodinámicos, Trabajo realizado por un gas, Energía interna de un sistema, Primera Ley de La Termodinámica, Capacidad calorífica del gas ideal, Procesos TermodinámicosThis material includes the following subjects: thermodynamical processes, Work made by a gas, Internal energ

Temperatura y expansión térmica

Este material incluye los siguientes temas: Temperatura y equilibrio térmico, Escalas de Temperatura ,Dispositivos utilizados para medir temperaturas, Expansión térmicasThis material includes the following subjects: The concept of temperature, Thermal equilibrium, Temperature scale

Segunda ley de la termodinámica

Este material incluye los siguientes temas: Maquinas térmicas, Motores de combustión interna, Refrigeradores, Segunda Ley de la Termodinámica, Máquina y refrigerador de Carnot, Entropía y la segunda ley de la termodinámicaThis material includes the following subjects: Thermal machines, Second law of thermodynamics, entropy, Carnot cycl

Propiedades térmicas de la materia

Este material incluye los siguientes temas: Ley del gas ideal, Propiedades moleculares de la materia, Modelo cinético-molecular del gas ideal, Capacidad calorífica y principio de equipartición de la energíaThis material includes the following subjects: ideal gas, Molecular properties of matter, energy equipartition principl

Ondas estacionarias

Este material incluye los siguientes temas: ondas estacionarias, ondas estacionarias en una cuerda con extremos fijos, modos normales de vibracion,This material includes the following subjects: stationary waves, stationary waves on a string, normal modes of vibratio

MAS

Los contenidos de este material del Curso Virtual FG3 son temas del movimiento armonico simple; la ecuacion de movimiento del MAS; la definicion de los parametros del movimiento armonico ademas de, Movimiento periódico, Características del movimiento periódico, y Energía de una masa unida a un resorte que describe un MASThis material includes the following subjects: periodic movement, properties of the periodic movement, simple harmonic oscillator, and energy of the simple harmonic oscillator

Ondas mecánicas

Este material incluye los siguientes temas: ondas mecánicas, tipos de ondas mecánicas, ondas mecánicas transversales.This material includes the following subjects: mechanical waves, types of mechanical waves, transverse mechanical waves, ondulatory movement energy, superposition of wave

Trasferencia de calor

Este material incluye los siguientes temas: Transferencia de calor por conducción, Transferencia de Calor por Convección, Transferencia de calor por radiaciónThis material includes the following subjects: conduction, convection, radiatio

Measurement of the angle between jet axes in Pb−-Pb collisions at sNN=5.02\sqrt{s_{\rm NN}} = 5.02 TeV

International audienceThis letter presents the first measurement of the angle between different jet axes (denoted as ${\Delta}R$) in Pb$-$Pb collisions. The measurement is carried out in the 0$-$10% most-central events at $\sqrt{s_{\rm NN}} = 5.02$ TeV. Jets are assembled by clustering charged particles at midrapidity using the anti-$k_{\rm T}$ algorithm with resolution parameters $R=0.2$ and $0.4$ and transverse momenta in the intervals $40 < p_{\rm T}^{\rm ch jet} < 140$ GeV/$c$ and $80 < p_{\rm T}^{\rm ch jet} < 140$ GeV/$c$, respectively. Measurements at these low transverse momenta enhance the sensitivity to quark$-$gluon plasma (QGP) effects. A comparison to models implementing various mechanisms of jet energy loss in the QGP shows that the observed narrowing of the Pb$-$Pb distribution relative to pp can be explained if quark-initiated jets are more likely to emerge from the medium than gluon-initiated jets. These new measurements discard intra-jet $p_{\rm T}$ broadening as described in a model calculation with the BDMPS formalism as the main mechanism of energy loss in the QGP. The data are sensitive to the angular scale at which the QGP can resolve two independent splittings, favoring mechanisms that incorporate incoherent energy loss

First measurement of the ∣t∣|t|-dependence of incoherent J/ψ\psi photonuclear production

International audienceThe first measurement of the cross section for incoherent photonuclear production of J/$\psi$ vector meson as a function of the Mandelstam $|t|$ variable is presented. The measurement was carried out with the ALICE detector at midrapidity, $|y|<0.8$, using ultra-peripheral collisions of Pb nuclei at a centre-of-mass energy per nucleon pair $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV. This rapidity interval corresponds to a Bjorken-$x$ range $(0.3$$-$$1.4)\times 10^{-3}$. Cross sections are reported in five $|t|$ intervals in the range $0.04<|t|<1$~GeV$^2$ and compared to the predictions of different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a $|t|$-dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data