HIP NEWS February 23rd 2015
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Now open for applications: travel grants for doctoral students
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Further information please check Flamma https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_windowLabel=contentviewer&contentId=HY335107&lang=en&_pageLabel=content_view

Crowdfunding for researchers and projects
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Further information please check Flamma https://flamma.helsinki.fi/portal/home/fh?_nfpb=true&_windowLabel=content&contentId=HY335266&lang=en&_pageLabel=view

Occupational health nurse at Kumpula campus
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Please check https://flamma.helsinki.fi/portal/home/fh?_nfpb=true&_windowLabel=content&contentId=HY334797&lang=en&_pageLabel=view

Visitors
———–
T. Koivisto 23.2. – 27.2. (KE)

HIP NEWS February 9th 2015
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HIP Staff News
==============
Former HIP Director Dan-Olof Riska has been elected Chair of the Board of Trustees of the Cyprus Institute (www.cyi.ac.cy). The Cyprus Institute is a research oriented university in Nicosia.

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 10 February 2015 at 10.15 in A315
K. Kajantie (Helsinki)
Phases and phase transitions of hot QCD with lots of massless quarks

Abstract: For this talk QCD has Nc=3 colors and we want to study what happens when the number of quarks, assumed to be massless, grows, Nf=0,3,6,… We pretend that these numbers are so big that we can use holography, solve the equation of state from a 5-dimensional gravity model. The chirally symmetric quark-gluon plasma phase then is straightforward: temperature and entropy are those of a classical gravity black hole solution. However, at low T there are hadrons, but there is no classical solution giving their hadron gas thermodynamics – there is a T=0 solution from which masses of low-lying states can be computed. So we approach the problem phenomenologically and put in an ansatz for the hadron spectrum. Because of chiral symmetry breaking there at low T are at least Nf^2 massless Goldstone bosons, further there is a partly calculable Hagedorn spectrum of massive states. We try to see how the properties of the chiral phase transition constrain the hadron gas model and show explicitly how the equation of state looks like for a third order phase transition. These phenomenological constructions can be interpreted as 1-loop or even stringy corrections to the classical gravity dual. The final word on phase transition properties lies with lattice Monte Carlo, but imposing zero quark masses is very difficult on the lattice.

COSMO-Seminar
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Thursday 12 February at 10:15 in E205
Jun’ichi Yokoyama (University of Tokyo)
Magnetogenesis and Schwinger effects in inflationary universe

Abstract: It has been claimed that cosmological magnetic field is ubiquitous even in void regions. Such a maganetic field may have been generated during inflation in the early Universe by breaking the conformal invariance of the gauge field. But in order to avoid the strong coupling problem, one may end up with a larger electric field than the magnetic field. This motivates us to study the Schwinger effect during inflation or in de Sitter space. Making use of a simple model we calculate how Schwinger effect may operate in de Sitter background and discuss its possible implication to inflationary magnetogenesis.

Thursday 12 February at 14:15 in A311
Francesco Montanari (University of Geneva)
Relativistic galaxy number counts: spectrum and bispectrum

Abstract: The fully relativistic expression for galaxy number counts is considered up to second order in perturbation theory. We propose to determine the truly observed galaxy spectrum and bispectrum as function of angles and redshifts. We show that neglecting integrated relativistic terms may bring significant bias on cosmological parameter constraints for future large-scale and deep-redshift galaxy surveys.

New tax cards valid as of 1 February 2015
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Old employees: No need to submit your tax card to the employer if your tax information has not changed.
New employees: Submit your tax card to the employer
Please check Flamma https://flamma.helsinki.fi/en/notifications/new-tax-cards-valid-as-of-1-february-2015

Visitors
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F. Montanari 9.2. – 13.2. (KE,SN)
J. Yokoyama 10.2. – 13.2. (KE,SN)

HIP NEWS February 2nd 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 3 February 2015 at 10.15 in A315
Sven Heinemeyer (Santander)
Higgs and Supersymmetry

Abstract: The particle discovered in the Higgs boson searches at the LHC in 2012 can be interpreted as the lightest Higgs boson of the Minimal Supersymmetric Standard Model (MSSM), in perfect agreement with predictions {\em before} the discovery. We briefly review the relevant phenomenology of the Higgs sector of the MSSM and the implication of the Higgs discovery for the model. We discuss possibilities for searches for the manifestation of Supersymmetry in the Higgs sector, including deviations from the Standard Model predictions as well as the search for additional Higgs bosons.

Wednesday 4 February 2015 at 10.15 in A315
Katherine Freese (Nordita, Stockholm)
The dark side of the Universe

Abstract: What is the Universe made of? This question is the longest outstanding problem in all of modern physics, and it is the most important research topic in cosmology and particle physics today. The reason for the excitement is clear: the bulk of the mass in the Universe consists of a new kind of dark matter particle, and most of us believe its discovery is imminent. I’ll start by discussing the evidence for the existence of dark matter in galaxies, and then show how it fits into a big picture of the Universe containing 5% atoms, 25% dark matter, and 70% dark energy. Probably the best dark matter candidates are WIMPs (Weakly Interacting Massive Particles). There are three approaches to experimental searches for WIMPS: at the Large Hadron Collider at CERN in Geneva; in underground laboratory experiments; and with astrophysical searches for dark matter annihilation products. Currently there are claimed detections in multiple experiments — but they cannot possibly all be right. Excitement is building but the answer is still unclear. At the end of the talk I’ll turn to dark energy and its effect on the fate of the Universe.

Thursday 5 February 2015 at 10.15 in A315
James Pinfold (Edmonton)
The MoEDAL Experiment at the LHC – a New Light on the High Energy Frontier

Abstract: In 2010 the MoEDAL experiment at the Large Hadron Collider (LHC) was unanimously approved by CERN’s Research Board to start data taking in 2015. MoEDAL is a pioneering experiment designed to search for highly ionizing avatars of new physics such as magnetic monopoles or massive (pseudo-)stable charged particles. Its groundbreaking physics program defines over 30 scenarios that yield potentially revolutionary insights into such foundational questions as: are there extra dimensions or new symmetries; what is the mechanism for the generation of mass; does magnetic charge exist; what is the nature of dark matter; and, how did the big-bang develop. MoEDAL’s purpose is to meet such far-reaching challenges at the frontier of the field.
The innovative MoEDAL detector employs unconventional methodologies tuned to the prospect of discovery physics. The largely passive MoEDAL detector, deployed at Point 8 on the LHC ring, has a dual nature. First, it acts like a giant camera, comprised of nuclear track detectors – analyzed offline by ultra fast scanning microscopes – sensitive only to new physics. Second, it is uniquely able to trap the particle messengers of physics beyond the Standard Model for further study. MoEDAL’s radiation environment is monitored by a state-of-the-art real-time TimePix pixel detector array. I shall also briefly discuss a new proposal to include a new active MoEDAL sub-detector to search for millicharged particles.

COSMO-Seminar
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Wednesday 4 February at 14:15 in A315
Pierre Fleury(IAP Paris)
Interpreting cosmological observations in a clumpy universe

Abstract: In the standard cosmological framework, observations are interpreted as if light propagated through a smooth, fluid-filled universe. However, the typical light beams involved in astronomical observations—such as supernovae—are extremely narrow, and thus probe the Universe at scales where the fluid description should no longer be valid. In this talk, I will explain how the clumpiness of the distribution of matter can affect light propagation through the cosmos, and thus the interpretation of our observations.

New tax cards valid as of 1 February 2015
——————————————-
Old employees: No need to submit your tax card to the employer if your tax information has not changed.
New employees: Submit your tax card to the employer
Please check Flamma https://flamma.helsinki.fi/en/notifications/new-tax-cards-valid-as-of-1-february-2015

Visitors
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P. Fleury 3.2. – 7.2. (KE,SN)
K. Freese 4.2. (KH)
J. Yokoyama 10.2. – 13.2. (KE,SN)

HIP NEWS January 26th 2015
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COSMO-Seminar
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Wednesday 28 January at 14:15 in A315
Elisabetta Majerotto (University of Madrid)
TBA

Helsinki Documentary Film Festival
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At the Helsinki DocPoint film festival, there is now movie about CERN
on Sunday, February 1st:

http://docpoint.info/tapahtumat/elokuvat/cern-2/

Notice that this is a different movie than the famous “Particle
Fever”, which was presented at Kumpula and in Heureka.

Screenings
DP15: CERN
Sunday 01.02.2015 at 17.30. Length: 1 h 15 min. Show ends at 18:45.
Finnkino cinema Maxim (Kluuvikatu 1, 00100 Helsinki), Helsinki (sali 1)
Regular (Regular price): 8,00 €

Occupational health
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Please visit https://flamma.helsinki.fi/portal/home/fh?_nfpb=true&_pageLabel=view&contentId=HY332304

ALUMNI DAY January 29th
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The event is free to those registered with Campus Alumni and to members of the Alumni Association.
Please visit https://university.helsinki.fi/en/alumni-day

Join Alumnikampus
All of the University’s current and former students, researchers and staff are considered alumni.
https://alumniverkosto.helsinki.fi/portal/public/Join.aspx

Narrow Escape form
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Due to winter conditions, please check Narrow Escape form in Flamma
https://flamma.helsinki.fi/portal/home/sisalto?_nfpb=true&_windowLabel=contentviewer&contentId=HY276078&lang=en&_pageLabel=content_view

Visitors
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P. Fleury 3.2. – 7.2. (KE,SN)
T. Koivisto 26.1. – 30.1. (KE,SN)
E. Majerotto 27.1. – 31.1. (KE,SN)
D. Mulryne 18.1. – 30.1. (KE,SN)
J. Yokoyama 10.2. – 13.2. (KE,SN)

HIP NEWS January 19th 2015
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 20 January 2015 at 10.15 in A315
Alfonso Ramallo (Santiago de Compostela)
Cold holographic matter

Abstract: After a brief review of the Landau Fermi liquid theory, we will discuss a holographic modeling of cold matter in terms of D-brane intersections. We will analyze the different regimes of these systems as a function of the temperature and, in particular, their zero-sound and diffusion modes.

COSMO-Seminar
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Wednesday 21 January at 14:15 in A315
David Mulryne (Queen Mary U. of London)
TBA

ALUMNI DAY January 29th
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The event is free to those registered with Campus Alumni and to members of the Alumni Association.
Please visit https://university.helsinki.fi/en/alumni-day

Join Alumnikampus
All of the University’s current and former students, researchers and staff are considered alumni.
https://alumniverkosto.helsinki.fi/portal/public/Join.aspx

Visitors
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D. Alonso 1.3. – 5.3. (KE,SN)
P. Fleury 3.2. – 7.2. (KE,SN)
D. Mulryne 18.1. – 30.1. (KE,SN)
A. Ramallo 19.1. – 23.1. (NJ)
J. Yokoyama 10.2. – 13.2. (KE,SN)

HIP NEWS January 12th 2015
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ALUMNI DAY January 29th
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The event is free to those registered with Campus Alumni and to members of the Alumni Association.

Please visit https://university.helsinki.fi/en/alumni-day

Join Alumnikampus
All of the University’s current and former students, researchers and staff are considered alumni.
https://alumniverkosto.helsinki.fi/portal/public/Join.aspx

Visitors
———–
D. Mulryne 18.1.2015 – 30.1.2015 (KE,SN)

HIP NEWS December 15th 2014
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 16 December 2014 at 10.15 in A315
Niko Jokela (Helsinki)
Hall states in partially quenched Chern-Simons matter theories

Abstract: In this talk I will show how to systematically construct holographic duals to quantum Hall states in Chern-Simons matter theories with dynamical flavors. The construction involves parity breaking quantized internal flux in the flavored ABJM background. The effects of the sea quarks are captured in the anomalous mass dimension of the quenched flavors as well as in contributing to the filling fraction of the Hall state in terms of intrinsic disorder.

NewsFlash 6/2014 is now out!
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https://flamma.helsinki.fi/portal/home/fh?_nfpb=true&_pageLabel=view&contentId=HY332047&placeId=HYMIGR_A4_101
Subscribe to the NewsFlash newsletter
http://hy.etapahtuma.fi/Default.aspx?tabid=794

Visitors
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U. Maitra 15.11. – 23.12. (KH)
D. Mulryne 18.1.2015 – 30.1.2015 (KE,SN)

HIP NEWS December 8th 2014
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In the Independence Day honors roll of the President of the Republic
Mrs Riitta Rinta-Filppula (MSc), HIP pedagogical expert at CERN, receives the Knights cross of the Order of the Lion of Finland and Dr. Martti Pimiä, senior physicist emeritus of CERN, receives the Knights cross of the Order of the White Rose.

AID forum: Syksy Räsänen & Antti Ripatti & Heikki Järvinen on Predictive Ambitions and Failures, Mon 8 Dec, 16-18
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TIME: Monday 8 December, 16-18.
PLACE: Metsätalo/Forest Building, Unioninkatu 40, room 6, 3rd floor.
www.helsinki.fi/teknos/opetustilat/keskusta/u40/ls6.htm
For the very idea and the programme, check www.helsinki.fi/tint/aid.htm.

DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 9 December 2014 at 10.15 in A315
Christian Gross (Helsinki)
SUSY GUT models with non-Abelian flavour symmetry

Abstract: I will discuss supersymmetric SU(5) GUTs with a non-Abelian flavor symmetry group A_4. After spontaneous flavor symmetry breaking the models give rise to the observed fermion masses, mixing angles and the quark CP phase. In addition one obtains various interesting predictions, in particular for the neutrino sector. I will also comment on the SUSY flavor and CP problems in these models.

COSMO-Seminar
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Wednesday 10 December at 14:15 in A315
Drazen Glavan (University of Utrecht)
Late-time quantum backreaction of a non-minimally coupled massless scalar

Quantum fluctuations of the field contribute to its energy-momentum tensor. This contribution (backreaction) should source the Einstein equations. For fields living on time-dependent backgrounds, such as FLRW, this contribution to the energy-momentum tensor can exhibit secular behavior – its magnitude can grow in time. Given enough time, in certain cases, it can grow large enough to considerably alter the classical dynamics of the expansion of the Universe. I will present a model of a non-minimally coupled scalar field whose inflationary quantum fluctuations are evolved throughout the history of the Universe, from inflation to radiation and matter dominated eras. The energy-momentum tensor of these fluctuations is calculated in each era. For certain range of non-minimal coupling the backreaction remains small throughout the history and in late matter era exhibits interesting transient phenomena where it grows large and could affect the expansion considerably, similar to the effect of Dark Energy. The talk is based on two papers: arXiv:1308.5954, arXiv:1408.4705

OPEN POSITIONS:
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Experimental particle physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95216

Space physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95215

Experimental Aerosol physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95214

Senior lecturer positions open in Jyväskylä:
Senior lecturer in theoretical particle physics, in the field of ultrarelativistic heavy-ion collisions:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000491&lang=fi

Senior lecturer in cosmology:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000494&lang=fi

Visitors
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D. Glavan 9.12. – 11.12. (KE, SN)
U. Maitra 15.11. – 23.12. (KH)

HIP NEWS December 1st 2014
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COSMO-Seminar
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Wednesday 3 December at 14:15 in A315
Jeremy Sakstein (University of Portsmouth)
TBA

OPENING DAY AT KUMPULA CAMPUS LIBRARY ON MONDAY THE 1ST DECEMBER
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Visit the newly renovated campus library!
– Guided tours 10:00 and 12:00 – by request in English.
– Service presentations 10:15-13:45 (in Finnish)
– Event for invited guests at 14, on the 2nd floor
The library is open as usual 9 a.m. to 7 p.m.

OPEN POSITIONS:
——————
Experimental particle physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95216

Space physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95215

Experimental Aerosol physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95214

Senior lecturer positions open in Jyväskylä:
Senior lecturer in theoretical particle physics, in the field of ultrarelativistic heavy-ion collisions:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000491&lang=fi

Senior lecturer in cosmology:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000494&lang=fi

Fortcoming training for new international employees
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10.12.2014 Welcome Breakfast
More info on Henkka:
www.helsinki.fi/trainingcalendar

Visitors
———–
U. Maitra 15.11. – 23.12. (KH)
J. Sakstein 2.12.- 4.12. (KE, SN)

HIP NEWS November 24th 2014
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DEPARTMENT OF PHYSICS / HIP JOINT COLLOQUIA / SEMINARS
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Tuesday 25 November 2014 at 10.15 in A315
Ushoshi Maitra (HRI, India)
Status of additional scalar states at the LHC

Abstract: In this talk I’m going to explore a scenario where along with the observed scalar at 125 GeV we can still accommodate an additional scalar. I’ll be focusing on the scalar called radion, which is an artifact of stabilizing the moduli of Randall Sundrum model. I’ll also consider the mixing of radion with Higgs. I’ll show that this observed scalar cannot be an unmixed radion however, it can still be a mixed Higgs with mixed radion nearby. I’ll also discuss a search strategy that can be used to discover a very light radion at the LHC (1410.0396).

Helsingin yliopiston kirjaston avoimet koulutukset
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Tiedonhankinnan peruskurssi ma 24.11., RefWorks-viitteidenhallinnan koulutus to 27.11
Kumpulan kampuskirjaston koulutusilmoittautumislomake https://elomake.helsinki.fi/lomakkeet/12345/lomake.html

OPEN POSITIONS:
——————
Experimental particle physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95216

Space physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95215

Experimental Aerosol physics (tenure track)
http://www.helsinki.fi/recruitment/index.html?id=95214

Senior lecturer positions open in Jyväskylä:
Senior lecturer in theoretical particle physics, in the field of ultrarelativistic heavy-ion collisions:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000491&lang=fi

Senior lecturer in cosmology:
http://www.saimanet.com/certiahome/open_job_view.html?did=5600&jc=13&id=0000494&lang=fi

Fortcoming training for new international employees
—————————————————-
10.12.2014 Welcome Breakfast
More info on Henkka:
www.helsinki.fi/trainingcalendar

Visitors
———–
U. Maitra 15.11. – 23.12. (KH)