Dear friends

In the middle of June the second phase of the global commissioning exercise at CMS, called Cosmic Run at Zero Tesla (CRUZET2), was successfully concluded and combined with the first phase from May. Read about the interesting results from CRUZET2 in the first feature story and follow the progress of the third phase of the Cosmic Run campaign, CRUZET3, with a major newcomer – the silicon strip tracker - in the next edition of CMS Times.

Another story features the largest computing infrastructure in Latin America, GridUNESP, that will allow access to the highest levels of data processing and storage capacity in several research areas, including HEP, through the São Paulo Regional Analysis Center (SPRACE, CMS Tier-2). Find out more about this project in the second article of this edition.

With kind regards

Marzena Lapka
Elizabeth Gibney

Click here to download printable PDF version.

Updated information should be sent to
cmstimes@cern.ch

Soltan Institute for Nuclear Studies (IPJ), Warsaw (Poland) in CMS

IPJ CMS members. From left to right: Miachal Bluj, Krzysztof Nawrocki, Helena Bialkowska, Tomasz Fruboes, Malgorzata Kazana, Ryszard Gokieli, Michal Szleper, Maciej Gorski, Piotr Zalewski and Piotr Traczyk. Absent: Grzegorz Wrochna.

Soltan Institute for Nuclear Studies (IPJ) participates in the CMS in close collaboration with Institute of Experimental Physics (University of Warsaw) forming so called Warsaw CMS group.

The main responsibility of the group is PAttern Comparator Trigger (PACT) electronics system for First Level Muon Trigger based on Resistive Plate Chambers. IPJ members are also involved in TeV muons reconstruction and have developed Time of Flight method which uses Drift Tubes for Heavy Charged (semi) Stable Particles (HSCP) search. Another concern was search for non-pointing photons from decays of long lived NLSP neutralinos. This analysis is developing to obey also decays of charged Next to Lightest Supersymmetric Particles. Finally members of the IPJ CMS group are responsible for CMS branch of
Warsaw Tier2 (T2_PL_Warsaw).

Piotr Traczyk enjoying one of his hobbies.

Hi, my name is Piotr Traczyk, I've just started a Marie Curie Fellowship at CERN. I got my PhD at the Soltan Institute of Nuclear Studies in Warsaw, where I was born and where I have spent more or less the first thirty years of my childhood. My work is generally related to doing physics with muons and developing muon reconstruction software. The thing I'm interested in is Beyond the Standard Model physics, and muons that are non-standard for some reason. One example is muons with momenta of the order of a TeV, that can appear as decay products of a heavy resonance like a Z' or a Randall-Sundrum graviton. Another type of non-standard muon signatures is signals from Heavy Stable Charged Particles, which from the point of view of the detector appear as heavy, and hence slow, off-time muons.

My other job besides being a physicist is being a musician. Having recently moved to CERN, I'm now an external guitarist in a polish band called YokaShin. Since we have recently expanded our progressive hard rock (or whatever anybody calls it) sound by recruiting a classical string quartet, my current job is writing the arrangements for the quartet and emailing them to the rest of the band. I also fly over to Warsaw every once in a while when there's a larger show to be played. Besides writing and performing with the band I also have some other projects, including solo work where I basically try to do everything (sing, play most of the instruments, record, produce etc.).

In my free time I try to take advantage of the fact that the ground in the Geneva region is generally non-flat. This means skiing in during the winter, and hiking in the mountains in the summer. My new love since about a year or so is rock climbing, and the places where I can do that also appear to be numerous and close enough even for going in the afternoon.

Watch the interview with Piotr on You Tube:

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LHC-France launched their first website about the LHC: http://www.lhc-france.fr/

Rich in multimedia and animations, this website not only explains the contributions of the two research centres CNRS and CEA to the LHC but also underlines the human aspect of the LHC project through many videos and interviews with designers, artists, students, project leaders and engineers.

From Techno-Science.net (France), 23 June 2008:

Le LHC lance son dernier tube au CERN

Le coeur de toute expérience LHC (Large Hadron Collider) n'est ni un détecteur à pixels, ni un localisateur de vertex, mais un tube à faisceau. C'est le lieu de chaque collision et la frontière entre l'accélérateur et l'expérience. Le mardi 10 juin, après 15 ans d'une conception et d'une fabrication complexes, le tube à faisceau a été installé dans l'expérience CMS (Solénoïde Compact pour Muons)...

Read the full article:
http://www.techno-science.net/
?onglet=news&news=5516

From Digitoday.fi (Finland), 25 June 2008:

Suomi valmis LHC-datalle

Cernin LHC-hiukkastörmäytin muodostaa ennätyksellisen tietoteknisen haasteen, josta Suomikin saa osansa purtavakseen, tieteen tietotekniikan keskus CSC korostaa. Suomen pitäisi kuitenkin olla nyt valmis vastaanottamaan massoittain kiihdyttimen tuottamaa dataa...

Read the full article:
http://www.digitoday.fi/data/2008/06/25/suomi-
valmis-lhc-datalle/200817025/66

Scientists say there's nothing to fear from atom-smasher experiments

MEYRIN, Switzerland - The most powerful atom-smasher ever built could make some bizarre discoveries, such as invisible matter or extra dimensions in space, after it is switched on in August.

But some critics fear the Large Hadron Collider could exceed physicists' wildest conjectures: Will it spawn a black hole that could swallow Earth?...

Read the full article:

http://nbbusinessjournal.canadaeast.com
/gleaner/article/336991

From Faz.net (Germany), 30 June 2008:

Der Urknall von Genf

Unweit des Genfer Vororts Meyrin am Fuße des französischen Jura existiert eine Parallelwelt. Sie liegt im Verborgenen, tief unter Feldern, Dörfern, Kirchen, Schulen, Cafés und Bauernhöfen. Wer zu ihr hinabsteigt, der glaubt sich in der Kulisse eines Science-Fiction-Films wiederzufinden. Denn was man im Untergrund des schweizerisch-französischen Grenzgebiets zu sehen bekommt, ist die größte Maschine...

Read the full article:
http://www.faz.net/s/Rub163D8A6908014952
B0FB3DB178F372D4/Doc~E98292B17BD2046
7085FD8B1CE94D9A04~ATpl~Ecommon~S
spezial.html

Last week has been dedicated to the opening of both end caps. This heavy logistical operation was needed to set up the platforms required for the installation of the Forward Pixel, Barrel Pixel, BCM, ECAL End cap detectors.

The Frames inside the Vacuum Tank have been extracted and the Beam Pipe load transfer performed.

Beam Pipe protection.

Now that the beam pipe has been fully installed, it is essential to protect it is the most efficient way. Over 100 concrete blocks need to be lowered through the PX56 shaft and arranged on both the +Z and -Z sides. To minimise the risk that tiny pieces of concrete might detach and reach the beam pipe during the lifting operations, nets have been installed above the beam pipe and the central part of the PX56 platform has been reinstalled.

Submitted by

Martin Gastal

One track seen with hits in all layers of TIB and TOB. Also shown: TIB layer 1.

The last week has seen lots of progress in the operation of the tracker, in preparation for the global runs. The first tracks have been seen in TIB and TOB using the DT technical cosmic trigger, first separately in the night from Thursday to Friday, and then together on Monday. That represents a significant achievement for all the people that contributed to the detector installation and commissioning. The tracker collaboration will now work to integrate global runs, calibrate the detector and establish the optimal working point for the detector.

Submitted by

Christophe Delaere

Image of the source cosmic rays on the surface of the Earth that penetrate and are detected by CMS 90m underground. That shaft is clearly visible.

The second phase of the Cosmic Run at Zero Tesla (CRUZET2) concluded successfully on June 14, and combined with the first phase in May, the global commissioning exercise has logged over 60M triggers.

The fraction of CMS detectors participating has steadily increased, reaching 95% of the DT muon system, 60% of the RPC barrel, a complete CSC endcap, and essentially 100% of the HCAL and barrel ECAL calorimeters.

Notable achievements for this latest run include the deployment of calibration triggers for pulsing the ECAL laser and DT electronics (1.5 million events logged), deployment and test of the HLT start-up menu for the LHC, trigger rate tests exceeding 60 kHz, and the creation of primary datasets using the new Tier-0 “repacker”. Additionally, data quality flags were determined and attached to the run listing, and offline DQM and prompt analyses continued to be performed at the Tier-0 and CAF.

Interesting results from CRUZET2 include the study of muons crossing between the DT and CSC systems (including a measurement of the current 3.7m separation between them) as well as synchronization and efficiency studies. A nice confirmation of the source of the cosmic flux is shown in a figure produced by I. Mikulec, which takes tracks reconstructed in the muon systems and extrapolates them back to the Earth’s surface. One can clearly see an image of the shaft through which the detector elements were lowered and which thus provides a low absorption path to CMS.

The third phase of the Cosmic Run campaign, CRUZET3, starts July 7 with a major newcomer – the silicon strip tracker.

Submitted by:
Darin Acosta	and	Tiziano Camporesi

This project will include seven university campuses with 368 servers, capable for 33.3 trillion calculations per second

A Sun Microsystems cluster, similar to the one being assembled at UNESP.

UNESP (the São Paulo State University) has this semester begun to set up the largest computational cluster in Latin America, on seven different sites in the State of São Paulo. GridUNESP, powered by Sun Microsystems’ technology, will allow research groups at the University access to the highest levels of data processing and storage capacity for high energy physics, genetics, meteorology, medicine, and other areas of scientific investigation.

The cost of the project, at about US$ 2 million, has been supported by the Ministry of Science and Technology, through the Study and Project
Finance Office (FINEP). The computational infrastructure, comprising a central cluster and another seven secondary clusters, will be set up at the campuses at Araraquara, Bauru, Botucatu, Ilha Solteira, Rio Claro, São José do Rio Preto and São Paulo. The central system, which will be
installed at the new UNESP campus in São Paulo, will have 2,048 processing cores and a performance capacity of about 23.2 teraflops. The whole complex will reach 33.3 teraflops, what is equivalent to more than 8.5 MSI2k.

Prof. Sérgio F. Novaes, the General Coordinator of GridUNESP, is also the leader of the CMS group at São Paulo. He points out that "the contribution of the São Paulo Regional Analysis Center (SPRACE) to the overall data processing effort of CMS collaboration will be considerably increased, as this computational infrastructure will be used in association with the Brazilian CMS Tier 2 (BR_SPRACE) resources already available for the collaboration."

GridUNESP has established a partnership with Open Science Grid (OSG), which gathers together grid structures with computational resources from 50 sites in the US, Asia and Latin America. The connection between the clusters in São Paulo will be made through the KyaTera-FAPESP optical network, and the international connection to US Internet2 will be possible thanks to ANSP/RNP/Florida International University link between São Paulo and Miami.

Extracted from: UNESP
Press Release
14 June 2008

Read the full Press Release here:
http://unesp.br/gridunesp/int_conteudo_sem
_img.php?conteudo=697