Status of direct and indirect dark matter searches

I review the current status of dark matter searches using direct, indirect and accelerator techniques. A detailed review of individual experiments is beyond the scope of these proceedings. I focus instead on the challenges (sometimes limitations) faced by each of the approaches, which is what make them complementary, and the reason we must ensure that they are developed concurrently.Comment: Proceedings of European Physical Society Conference on High Energy Physics - EPS-HEP2019, 10-17 July, 2019. Submitted to Proceedings of Scienc

Closing the Window on Strongly Interacting Dark Matter with IceCube

We use the recent results on dark matter searches of the 22-string IceCube detector to probe the remaining allowed window for strongly interacting dark matter in the mass range 10^4<m_X<10^15 GeV. We calculate the expected signal in the 22-string IceCube detector from the annihilation ofsuch particles captured in the Sun and compare it to the detected background. As a result, the remaining allowed region in the mass versus cross sectionparameter space is ruled out. We also show the expected sensitivity of the complete IceCube detector with 86 strings.Comment: 5 pages, 7 figures. Uppdated figures 2 and 3 (y-axis normalization and label) . Version accepted for publication in PR

Impact of nucleon matrix element uncertainties on the interpretation of direct and indirect dark matter search results

We study in detail the impact of the current uncertainty in nucleon matrix elements on the sensitivity of direct and indirect experimental techniques for dark matter detection. We perform two scans in the framework of the cMSSM: one using recent values of the pion-sigma term obtained from Lattice QCD, and the other using values derived from experimental measurements. The two choices correspond to extreme values quoted in the literature and reflect the current tension between different ways of obtaining information about the structure of the nucleon. All other inputs in the scans, astrophysical and from particle physics, are kept unchanged. We use two experiments, XENON100 and IceCube, as benchmark cases to illustrate our case. We find that the interpretation of dark matter search results from direct detection experiments is more sensitive to the choice of the central values of the hadronic inputs than the results of indirect search experiments. The allowed regions of cMSSM parameter space after including XENON100 constrains strongly differ depending on the assumptions on the hadronic matrix elements used. On the other hand, the constraining potential of IceCube is almost independent of the choice of these values.We thank the Kavli Institute for Theoretical Physics at UCSB and organizers of the Hunting for Dark Matter programme for their hospitality during the preparation of this manuscript. This research was supported in part by the National Science Foundation under Grant No. NSF PHY11-25915. R. RdA, is supported by the Ramon y Cajal program of the Spanish MICINN and also thanks the support of the Spanish MICINN's Consolider-Ingenio 2010 Programme under the grant MULTIDARK CSD2209-00064 and the Invisibles European ITN project (FP7-PEOPLE-2011-ITN, PITN-CA-2011-289442-INVISIBLES). The use of IFT-UAM High Performance Computing Service is gratefully acknowledged.Peer reviewe

El modelo sueco de carrera docente e investigadora

Es necesario hacer unas aclaraciones previas. En lo que sigue me referiré frecuentemente al NFR (Secretaría para la Investigación). Es éste un órgano, formado por científicos, dependiente del Ministerio de Educación y Ciencia sueco, que lleva casi todo el peso de la financiación de la investigación en todos los campos. El órgano rector se elige democráticamente entre los profesores universitarios, por lo cual su composición no esta ligada al partido en el poder en cada momento

Assessing the sensitivity of PINGU to effective dark matter-nucleon interactions

We calculate the sensitivity of next generation neutrino telescopes to the 28 (isoscalar and isovector) coupling constants defining the non-relativistic effective theory of (spin 1/2) dark matter (DM)-nucleon interactions. We take as a benchmark detector the proposed Precision IceCube Next Generation Upgrade (PINGU), although our results are valid for any other neutrino telescope of similar effective volume. We express PINGU's sensitivity in terms of $5\sigma$ sensitivity contours in the DM-mass - coupling constant plane, and compare our sensitivity contours with the 90% C.L. exclusion limits on the same coupling constants that we obtain from a reanalysis of the null result of current DM searches at IceCube/DeepCore. We find that PINGU can effectively probe not only the canonical spin-independent and spin-dependent DM-nucleon interactions, but also velocity-dependent or momentum-dependent interactions that generate coherently enhanced DM-nucleus scattering cross sections. We also find that PINGU's $5\sigma$ sensitivity contours are significantly below current IceCube/DeepCore 90% C.L. exclusion limits when $b\bar{b}$ is the leading DM annihilation channel. This result shows the importance of lowering the experimental energy threshold when probing models that generate soft neutrino energy spectra, and holds true independently of the assumed DM-nucleon interaction and for all DM masses tested here. When DM primarily annihilates into $\tau\bar{\tau}$, a PINGU-like detector will improve upon current exclusion limits for DM masses below $35$ GeV, independently of the assumed DM-nucleon interaction.Comment: 20 pages, 6 figures and 1 tabl

Dependencia emocional, satisfacción con la vida y violencia de pareja en estudiantes universitarias

The objective of the study was to analyze the relationship between emotional dependence and satisfaction with life in a group of Psychology students from public and private universities in Metropolitan Lima, victims and non-victims of partner violence. The research involved 1211 university students with an average age of 21.7 years (SD = 4.7), 54% not subjected to  any partner violence and 46%  who had experienced violence. The instruments used were the Questionnaire on Violence between partners (CUVINO, Rodríguez-Franco et al., 2010), the Inventory of Emotional Dependence (IDE, Aiquipa, 2015) and the Satisfaction with Life Scale (SWLS, Diener, Emmons, Larsen &amp; Griffin, 1985). The results indicate that in the group of women experiencing  partner violence there is a statistically significant relationship and an inverse relationship between emotional dependence and life satisfaction, both for the total scale (-0.24, p &lt;.005) and for all dimensions (values between -0.128 to -0.26, p &lt;.001). However, in the group of women not subjected to partner violence, the relationship between the study variables was lower (-0.11, p &lt;.005) and some relationship was only found between satisfaction with life and three of the seven dimensions (values between -0.11 to -0.16, p &lt;.005).El objetivo del estudio fue analizar la relación entre la dependencia emocional y la satisfacción con la vida en un grupo de estudiantes de Psicología de universidades públicas y privadas de Lima Metropolitana, víctimas y no-víctimas de violencia de pareja. Participaron 1211 estudiantes universitarias con edad promedio de 21.7 años (DE=4,7), 54% sin violencia de pareja y 46% con violencia.  Los instrumentos empleados fueron el Cuestionario de Violencia entre Novios (CUVINO, Rodríguez-Franco et al., 2010), el Inventario de Dependencia Emocional (IDE, Aiquipa, 2015) y la Escala de Satisfacción con la Vida (SWLS, Diener, Emmons, Larsen &amp; Griffin, 1985). Los resultados indican que en el grupo de mujeres con violencia de pareja existe relación estadísticamente significativa y de tipo inversa entre dependencia emocional y satisfacción con la vida, tanto para la escala total (-0,24; p &lt; .005) como para todas las dimensiones (valores entre -0,128 hasta -0,26; p &lt; .001). Sin embargo, en el grupo de mujeres sin violencia de pareja, la relación entre las variables de estudio fue menor (-0,11; p &lt; .005) y solo se halló relación entre satisfacción con la vida y tres de las siete dimensiones (valores entre -0,11 hasta -0,16; p &lt; .005).

Constraints on Enhanced Dark Matter Annihilation from IceCube Results

Excesses on positron and electron fluxes measured by ATIC, and the PAMELA and Fermi--LAT telescopes can be explained by dark matter annihilation in our Galaxy. However, this requires large boosts on the dark matter annihilation rate. There are many possible enhancement mechanisms, such as the Sommerfeld effect or the existence of dark matter clumps in our halo. If enhancements on the dark matter annihilation cross section are taking place, the dark matter annihilation in the core of the Earth should also be enhanced. Here we use recent results from the IceCube 40-string configuration to probe generic enhancement scenarios. We present results as a function of the dark matter-proton interaction cross section, $\sigma_{\chi p}$ weighted by the branching fraction into neutrinos, $f_{\nu\bar{\nu}}$, as a function of a generic boost factor, $B_F$, which parametrizes the expected enhancement of the annihilation rate. We find that dark matter models which require annihilation enhancements of $\mathcal{O}(100)$ or more and that annihilate significantly into neutrinos are excluded as the explanation for these excesses. We also determine the boost range that can be probed by the full IceCube telescope.Comment: 6 pages, 3 figures; version accepted for publicatio