CURRICULU VITAE: May 2014 Names: Arturo Rodolfo Surnames: Sánchez Pineda Place and Date of Birthday:

San Cristóbal, Táchira, Venezuela. May 26th, 1986. Nationality:

Venezuelan.

Languages: Spanish (Native)

English (Very good skills) Italian (Very good skills)

French (Elementary skills)

Professional Address: Physical Sciences Department. University of Naples "Federico II". Complesso universitario Monte S. Angelo, Via Cintia - 80126 Napoli, Italia.

Telephones: +39-380-646-9808, +41-22-767-1150

Emails:

arturos@cern.ch, sanchez@na.infn.it

Education

03/2010-02/2013

PhD in High Energy Physics, in the Fundamental and Applied Physics Doctorate School, University Federico II in Naples, Italy.

“Search for Higgs-like resonances in the decay channel ZZ→l±l±qq with the ATLAS experiment at LHC”

03/2008-02/2010 Master in Fundamental. Post-grade in Fundamental Physics, Faculty of Science, Universidad de Los Andes, Merida, Venezuela*

09/2006-02/2010 Computational Engineering. Faculty of Engineering, Universidad de Los Andes, Merida, Venezuela. 6th of 10th semesters*

09/2003-02/2008 Physics Licentiate, Faculty of Science, Universidad de Los Andes, Merida, Venezuela.

01/2007-01/2008 Academic Interdisciplinary program in Computational Sciences, Faculties of Science and of Engineering, Universidad de Los Andes, Merida, Venezuela.

*Stopped due to the PhD position.

Professional and Research Experience

11/2013-10/2014 Fellowship at Physics

Department of University of Naples "Federico II"

Realization, implementation and testing of a distributed infrastructure type of Grid computing

among the sites Tier2 ATLAS-INFN-NAPOLI-ROMA1. Web developer of Group and Team.

Principal responsible and developer (software, documentation, datasets production, computer

tools) of the complete Higgs and 2HDM analyses research for 3 different university/research groups

in the ATLAS community. Part of the manager team of computer services.

02/2013-10/2013 INFN Association for the ATLAS detector at LHC.

ATLAS Higgs (SM and 2HDM models) search analyses into the ZZ(∗)→l±l±qq decay mode.

01/2012-01/2013 INFN-CERN Associate Contract

Position at CERN for the ATLAS detector at LHC.

Responsible and developer (software, documentation, datasets production, computer

tools) of the complete Higgs and 2HDM analyses research for 2 different university/research groups

in the ATLAS community.

11/2010-12/2010 CERN Invitation to Software Development Group

Initial phase in the development of a new tool for Volunteer Computer for ATLAS using BOINC

technology.

05/2009-03/2010 Professional Contract as Teacher Assistant

Academic scholar in the Mathematical Basic Lecture in the Faculty of Humanities, Universidad

de Los Andes.

03/2009-03/2010 Professor for the Lectures Mathematics

Mathematics 10, 20 and 30 in the Department of Calculus of the Faculty of Engineering of the

Universidad de Los Andes.

05/2008-02/2010 Fellowship HELEN (Program High Energy Latinoamerican-

European Network).

Research Scholarship at the LPNHE of the University Diderot Paris 7 at Paris, France.

Performance’s studies of Algorithms of Reconstruction for the ATLAS experiment at LHC.

09/2007-02/2008 Internships of Research in the

CIDA (Centre of Investigations In Astronomy)

Internship for the development of infrared Detector of clouds for the National Observatory.

Universidad de Los Andes, Department of Physics, Merida, Venezuela.

ATLAS Services Experience

10/2013-on going Collaboration in the development of an online monitoring tool for the MC/Data production under the request of the ATLAS Higgs ZZ Group at CERN. HSG2 MC production monitoring contact.

07/2013-on going Studies on the performance and reliability of PROOF technology under the CERN and Italian computer facilities into the GRID infrastructure using an ATLAS Higgs analysis together with a team of physicist and computer managers.

05/2010-01/2012

Improvement of the code, monitoring, study and documentation of the RPC noise in the Muon Spectrometer in the ATLAS detector (qualification tasks). Relevant role for he day to day data taking with respect to the channel to take (or not) into account for the final data characterization at Control Room level.

08/2010-08/2012

ATLAS Control Room (CR) shifter at the Run Control System, taking care of the total process of data taking during more that 100 hours.

ATLAS CR shifter at the Trigger System, taking care of the monitoring and production of the trigger rates/keys during the data taking for more that 20 hours.

ATLAS CR shifter at the Muon Systems (during the existence of 3 separated sub-system: RPC, MDT and TGC), taking care of the monitoring, calibration and report during the data taking for more that 150 hours.

06/2010-02/2013

Multiple GRID-Computer and physics-analysis tests relative to the efficiency of the GRID certification/manipulation, MC/data production datasets, performance of new tools for interconnection of the TR2’s Italian sites and the Higgs ATLAS analyses. Several of those results where presented during dedicated meetings.

ATLAS Speakers conference presentations

July 7-13, 2013 Determination of the Higgs boson spin at ATLAS

Talk at the Prague ADVANCED STUDIES INSTITUTES ON

SYMMETRIES AND SPIN (SPIN-PRAHA-2013).

April 16-19, 2013 Status and Plans of the ZZ → l+l−qq analysis (HSG2-ATLAS)

ATLAS HSG2 meeting in Rome, Italy.

April 3-5, 2013 Quark-gluon tagging: Applicazioni nella

ricerca del bosone di Higgs nell’esperimento Atlas ad LHC

IFAE 2013, Cagliari, Italy. With Conference Proceeding.

October 9-12, 2012 Quark-gluon tagging (Analysis H → ZZ → l+l−qq with the ATLAS detector)

ATLAS HSG2 meeting in LAL Orsay-Paris, France.

Other Presentations in conferences and workshops worldwide

23th March to 5th April 2011

Observation of a Centrality-Dependent Dijet Asymmetry in Lead-Lead Collisions

at √sNN = 2.76 TeV with the ATLAS Detector at the LHC [arXiv:1011.6182

(hep-ex)]

Final and Best oral presentation of the Discussion Group about the ATLAS

publication. CERN - Latin-American School of HEP,

Natal-Brazil

1st to 3rd December 2010

Analysis of Noise in the RPC´s and Muon's Studies at ATLAS Detector at

LHC

3rd Colombo – Venezuelan Meeting in Relativity, Fields and Gravitation,

Curití Santander – Colombia

27th of September-3rd October 2009

The No Locality in the Modern Physics

5th International Conference “Finsler Extension of Relativity Theory” in

Research Institute of Hypercomplex Systems in Geometry and Physics in

Moscow and Fryazino, Moscow, Russia

20th January 2009

Comparison of basic quantities in dijet and top samples (Jet Algorithms

performances)

(Lab. Phys. Nucl. Hautes Energies (LPNHE)-Universites de Paris VI) in

Jet/Etmiss meeting on jet algorithms. At CERN

January, 2008 Didactic Equipment of Atomic Three-dimensional model for education of

Physics and Chemistry

X Prize Eureka-Universia to the Innovatividad Universitaria. 2007. Metropolitan University, Caracas,

Venezuela

18th to 24th, 2007

LVII Convención Anual de AsoVAC. November, UNET, San Cristóbal,

Táchira, Venezuela. With Conference Proceedings

April 11-13, 2012

Search for a Standard Model Higgs in the mass range 200-600 GeV in the channel H → ZZ → l+l−qq with the

ATLAS detector

IFAE 2012. Ferrara, Italy. With Conference Proceeding.

September 26-30, 2011

Study of the VH → VWW Standard Model Higgs Production at √s = 7 TeV

with the ATLAS detector

Società Italiana di Fisica XCVII Congresso Nazionale. L'Aquila,

Italy. With Conference Proceeding.

June 6-11, 2011 Measurement of the ATLAS di-muon

trigger efficiency in proton-proton collisions at 7TeV

Poster session for the ATLAS Collaboration at: Physics at LHC

Conference (PLHC). Perugia, Italy. With Conference

Proceeding.

18th to 24th November, 2007

Construction and implantation of Portable Radiotelescopes like Project of

Education of the Physics across the Radioastronomy

The LVII AsoVAC's Annual Convention, UNET, Táchira, Venezuela. With

Conference Proceeding

18th to 20th

April, 2007 Structural Characterization of

CuAgGeSe3

Latin American Workshop o Applications of Powder Diffraction: Campinas, Brazil. With Conference

Proceeding

19th to 24th

November, 2007 No Local Quantum effects and Speed of

the Light in Way in Movement

LVI Annual Convention of AsoVAC, Cumaná, Sucre, Venezuela With

Conference Proceeding

8th to 11th

November, 2006

Workshop of Gravitation and Astrophysics Relativistic. Coche Island,

Venezuela

Schools attended

20 th -26 th October 2013

Fifth INFN International School on: "Architectures, tools and methodologies for

developing efficient large scale scientific computing applications”

ESC13, Bertinoro (Forlì-Cesena) Italy

(Approved final examination)

30 th July to 4 th August 2012

School on Energy 2012. International School of Physics "Enrico Fermi" Varenna, Italy

23th March to 5th April 2011 2 CERN - Latin-American School of HEP Natal-Brazil

20th June to 3rd July 2010 “INSTANS Summer School”

Centro de Ciencias de Benasque “Pedro Pascual”.

Benasque, Spain

15 th to 26th September, 2008

Pre-Doctoral School LHC France-Asie: École de Physique, Les Houches

(CNRS IN2P3 and CEA IRFU). France

22 th to 26th, October 2007

XII Latin American Regional International Astronomical Union

Isla de Margarita, Venezuela.

16th to 17th April , 2007 Latin American Workshop o Applications of

Powder Diffraction: Mini-Course “Methods of Diffraction”

Campinas, Brazil

17th to 21th July, 2006 Nanoscience’s Latin-American School Mérida, Venezuela

March, 2006 GNU / Basic Linux. Mérida –Venezuela Universidad Los the Andes, Mérida, Venezuela

College Student labour Experience

Computing experience

Programming

C, C++, python, JAVA and Google App script languages

Very good skill in the development of software for multiple proposes

ROOT and pyROOT Very good skill in the use of the ROOT tools under different languages for scientific applications

PROOF and protocols xROOTd, http, dps, eos

Proved skill in the fast development of analysis under the parallel programing setup of PROOF

Maple scientific software Very good understanding and development analysis under Maple software

April, 2005 Astronomical Instrumentation, National Meeting of Astronomy

Observatorio Astronómico Nacional de Llano del Hato,

Mérida, Venezuela

8th to 9th December, 2004 I Workshop of Chaos and Complexity

Universidad Nacional Experimental del Táchira,

Venezuela

06/2012-08/2013 Supervisor of a student,

under the CERN Summer School Program 2012

Jet properties studies for the H→ZZ→l+l−qq analysis using 2011 ATLAS data. Student: Garuchava Shota, Tbilisis State University, Tbilisi, Georgia. Together

with Francesco Conventi: University of Naples “Parthenope” and INFN.

05/2009-03/2010 Professional Contract as Teacher Assistant

Academic scholar in the Mathematical Basic Lecture in the Faculty of Humanities, Universidad de Los

Andes.

03/2009-03/2010 Professor for the Lectures Mathematics

Mathematics 10, 20 and 30 in the Department of Calculus of the Faculty of Engineering of the

Universidad de Los Andes.

06/2004-02/2010 Teacher Assistant Laboratory of Physics 11, Laboratory of Physics 21,

Laboratory of General Physics. the Faculty of Engineering of the Universidad de Los Andes.

OpenMP, OpenCL, MPI Good notions of the development of code and studies under parallel computing programing

languages

Performance Evaluation Code tools

User of tools as IgProf and Valgrind for the analysis of the code performance in scientific

applications

ATLAS: Athena

Software

LXplus (5 and 6) software and disk space management

Very good skills in the use, deploy and development under CERN computer infrastructure for HEP

analysis

Athena and RootCore package user and developer (since release

13.3 to 17.8)

Very good skill in the use, deploy and development of software under RootCore and Athena ATLAS software for physics and performances analyses

GRID tools: PANDA, AMI, Pathena, dq2, pbook

Very good skills in a wide range of use of GRID tools under HEP studies. Experience in the

production, review and effective use of more than 150000 computer-jobs, Actually 2nd more active

user in ATLAS GRID.

GRID certification and experience in GRID-site stress

tests

Experience in the use of more that one certification and the deploy of “stress tests” into the IT cloud for

Computer-performance analyses.

Data management using Panda web browser tools and Pathena

command tools

Very good understanding and use of the tools to manage and distribute the datasets under the

different computer centres using ATLAS panda tools

ATLAS-MC production chain Good practical skills and understanding of the complete MC chain production in ATLAS

Wed development

CERN-SVN services and management

Management of the SVN software repositories used by the H→ZZ→l+l−qq analysis during all their

phases since 2010.

SharePoint creation and management

Skills in the deploy and management of share points thanks to CERN facilities

Email-group automatic notifications, ATLAS tools

Experience in emails and automatic tools for the distribution of relevant analysis/production

information

TWIKI services and management, Wiki-HTML

Very good understanding of a wide range of wiki tools used to deploy of monitor the essential

documentation for physics analysis and performance studies

Google Apps, DropBox and other free-cloud services, online

sharing tools

Very good understanding and constant use of analytics/repository tools for the management of

information relevant for the research team

EVO and Vidyo (video-conference software) user

User of the different tools for online communication into the scientific community

Blog Web (artara.org) administration and Indico user

Constant tester of online blogs, http software and tools to open my knowledge out of the boundaries of

the scientific community

Operative Systems

Linux: Ubuntu, Scientific Linux Very good skills under Linux working environments for scientific applications

Windows XP, Vista, 8. Very good understanding of the Windows environment, been my “native” OS

Mac and OS and iOS Very good understanding of the Mac environment, been my “current” OS

CERN Virtual Machine (CERNVM).

Good understanding of the VM create at CERN and their use for physics analysis of LHC experiments

Office software

Window Office Advance User in all the different applications included into those packages, including not

standards apps as Windows Access, Google Apps Script (GAS) and Apache Database

Open Office, Google Docs

Latex

Recognitions and Distinctions

• Winner of a PhD Scholarship in the Fundamental and Applied Physics Doctorate School, in the University of Federico II in Naples, Italy. 2010. (1st position, 100/100 points).

• Winner of a Scholarship HELEN 2008. Paris, France. In the frame of Latin American - European cooperation. 10 months of scientific work in the LPNHE, University Diderot Paris 7. May 2008 to February 2009.

• Magna Cum Laude. (Best Average of the University Promotion). Universidad de Los Andes, 22th, February 2008. Mérida, Venezuela.

• Thesis of Degree Approved with qualification of Twenty (20/20) points and Recommended for its publication. Departamento de Física, Universidad de Los Andes. Mérida, 8th, February 2008.

• Honorific Mention, Prize Eureka Universia to University Innovation, Mención “Sidetur” a la Innovatividad Técnica. Caracas, Venezuela, November, 2006.

Selected Publications (The total list is detailed into the Publication List document)

Theory and Phenomenology

1. G. Spavieri, J. Erazo y A. Sánchez, M. Rodriguez, “Momento electromagnético, efectos cuánticos y la masa del fotón”. REVISTA MEXICANA DE FÍSICA 55 (4) 236–248 August, 2009.

2. G. Spavieri, J. Erazo, A. Sánchez, J. Ayazo, and G. T. Gillies, “Locality and Electromagnetic

Momentum in Critical Tests of Special Relativity”. Ether Space-Time & Cosmology Vol 3. 2009.

3. G. Spavieri, J. Erazo, A. Sánchez, F. Aguirre, G. T. Gillies and M. Rodriguez, “Electromagnetic Momentum in Frontiers of Modern Physics”. Front. Phys. China, 2008, 3(3): 239-249. DOI 10.1007/s11467-008-0036-9. April 22, 2008.

4. G. Spavieri, J. Erazo, A. Sánchez, J. Ayazo, and M. Rodríguez, “Crucial Test of Relativity Theory: Open Currents and Magnetic Model of Light”. Electromagnetic Phenomena, V.6, N. 1 (16) (2006).

5. G. Spavieri, J. Erazo, A. Sánchez, and G. T. Gillies, “Testing the locality of electromagnetic interactions in the special Theory of relativity”. Proceedings of Physical Interpretation of Relativity Theory Conference, London 2006.

ATLAS Proceeding-papers

1. Quark-gluon tagging: Application to the search of the Higgs boson in the ATLAS experiment at LHC. A. Sanchez Pineda for the ATLAS Collaboration Dipartimento di Fisica, Universita` di Napoli Federico II and INFN. Napoli, Italy. IL NUOVO CIMENTO, 2014, to be published.

2. Search for a Standard Model Higgs in the mass range 200–600 GeV in the channel H → ZZ → l+l−qq ̄ with the ATLAS detector. A. Sanchez Pineda for the ATLAS Collaboration Dipartimento di Fisica, Universita` di Napoli Federico II and INFN. Napoli, Italy. IL NUOVO CIMENTO Vol. 36 C, N. 1 January-February 2013.

3. Measurement of the ATLAS di-muon trigger efficiency in proton-proton collisions at √s=7TeV.

A. Sanchez Pineda for the ATLAS Collaboration Dipartimento di Fisica, Universita` di Napoli Federico II and INFN. Napoli, Italy. Physics at LHC 2011. ISBN 978-88-6787-006-6. Perugia, Italy, June, 6-11, 2011.

ATLAS Conference Notes

1. E. Vilucchi, A. De Salvo, C. Di Donato, R. Di Nardo, A. Doria, G. Ganis, A.Manafov, G. Mancini, S. Mazza, F. Preltz, D. Rebatto, A. Salvucci, A. R. Sanchez Pineda. “PROOF-based analysis on the ATLAS Grid facilities: first experience with the PoD/PanDa plugin”. 20th International Conference on Computing in High Energy and Nuclear Physics (CHEP). October 14-18, 2013, Amsterdam.

2. ATLAS Collaboration, Arturo Sanchez. “Study of the cannel H→Z*Z→l+l−qq in the mass range

120-180 GeV with the ATLAS Detector at √s = 7 TeV”. HCP 2012, Tokyo, Japan. http://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2012-163/

Selected ATLAS publications as direct contributor

1. ATLAS Collaboration, Arturo Sanchez, “Search for the Standard Model Higgs boson in the decay channel H→ZZ(*)→4l with the ATLAS detector”, Physics Letters B vol. 705, 435-451 (2011).

2. ATLAS Collaboration, Arturo Sanchez, “Search for the Standard Model Higgs boson in the decay channel H→ZZ(*)→4l with 4.8 fb-1 of pp collisions at √s =7 TeV with ATLAS“, Phys.Lett. B710 (2012) 383-402.

3. ATLAS Collaboration, Arturo Sanchez, “Combined H->ZZ (lll,llqq and llnu) high mass limits and

2HDM interpretation”, *to be Published*.

Online References to my work

ATLAS HSG2 Twiki Group https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HiggsZZstar

Analysis H→ZZ→l±l±qq wiki for Winter 2013 ATLAS https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HiggsllqqWinter2013

Analysis H→ZZ∗→l±l±qq wiki for Winter 2012 ATLAS

https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HiggsZZllqqLowMassSpring2012

Cutflow and documentation for the 2013 analysis

https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HiggsllqqWinter2013ItalianCutflow

Online Monitor for HSG2 MC productions https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HSGxTasksProductionMonitor

PoD Performance studies 2013. Publication results https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/PoDStudies2013

Personal SVN repository information/documentation https://svnweb.cern.ch/trac/arturos/wiki

Repository and instructions for Systematic apps

H→ZZ∗→l±l±qq ATLAS

https://twiki.cern.ch/twiki/bin/viewauth/AtlasProtected/HiggsllqqWinter2013Systematics

SVN repository for 2012 code/analysis https://svnweb.cern.ch/trac/vippolitsvn/browser/WZ/HiggsqqllAnalysis

SVN repository for 2013 code/analysis https://svnweb.cern.ch/trac/arturos/browser/ZZllqq/

RPC cluster Noise Repository https://twiki.cern.ch/twiki/bin/viewauth/Atlas/RPCCLUSTERNOISE

RPC Noise Tool documentations https://twiki.cern.ch/twiki/bin/viewauth/Atlas/RPCNoiseStudies

All ATLAS Publications, notes and presentations into

CERN database.

https://cds.cern.ch/search?ln=fr&cc=ATLAS&p=arturo+sanchez&action_search=Recherche&op1=a&m1=a&p1=&f1=&c=ATLAS+Communications&c=ATLAS+Conference+Notes&c=ATLAS+Conference+Slides&c=ATLAS+Internal&c=ATLAS+Internal+Notes&c=ATLAS+Live+News&c=ATLAS+Notes&c=ATLAS+Papers&c=ATLAS+Photos&c=ATLAS+Plots&c=ATLAS+Preprints&c=ATLAS+Publication+Drafts&c=ATLAS+Scientific+Notes&c=ATLAS+Theses&c=ATLAS+Videos&c=ATLAS+eNews&c=Restricted+ATLAS+Talks&c=&sf=&so=d&rm=&rg=10&sc=1&of=hb#32

Personal blog http://artara.org/

Personal Publication Repository

http://issuu.com/artfisica

www.youtube.com/user/artfisica/videos

Linkelin Profile http://www.linkedin.com/profile/view?id=94760396

Description of PhD Program

On High Energy Physics, in the Fundamental and Applied Physics Doctorate School, University Federico II in Naples, Italy

The Large Hadron Collider is the proton-proton collider at CERN. ATLAS is one of the four experiments installed at the LHC. It has been designed to be a general-purpose experiment, and among its characteristics it has a large standalone muon spectrometer, which allows high precision measurements of the muon momentum. In the muon spectrometer different detectors are used to provide trigger functionality and precision momentum measurements. In the pseudo-rapidity range |η|≤1 the first level muon trigger is based on Resistive Plate Chambers (RPC), gas ionization detectors. Due to the close involvement of the ATLAS-Naples Group in the RPC detector development, I'm immersed in the improvement of the RPC Noise studies software, that it's essentially compound by two principal dedicated software -RPCDecoding and RandomStudy- that generate plots, files, wiki pages, with the behaviour of the different parts of the RPC sub-detector -strips, channels and sectors- allowing the monitoring of its performance and the identification of possible noise's problems that can affect the quality of the data.

At the same time, I’m deeply involved in a collaboration with the ATLAS H→ZZ analysis Group,

specially –but not only- in the H→ZZ→l+l−qq analysis, where during the last year, the goal was a search in all the spectrum of Higgs's mass corresponding to: Low Mass (120-200GeV) and High Mass (200-600GeV).

Later on, and using like reference the recent discover of a particle compatible with the Higgs Boson (July 4th), our work has been concentrated on a) the inclusion of a kinematical fitter that helps on the resolution and significance of our Higgs signal and b) the improvement on the discrimination between the Jets- quarks, coming from one of the Z bosons, from Jets-gluons, produced into the irreducible Z+Jets background, implementing a new Multi-variable analysis technique, called Self Organizing Maps (SOM). At this low mass range, the low Jet-pT spectrum makes very difficult but even more interesting, such a quark-gluon separation study.

An important note, for all 2012, I have been assigned to be resident at Geneva and work directly at CERN, thanks to the INFN-CERN Associate Contract program.

Such Higgs-search collaboration, involving people from Universities of Roma1 and Paris (LPNHE), started with some studies on the features and projections of the Higgs Associate Production novel analysis at ATLAS, i.e. W±H→W±W+W−→l+υl−υqq and W±H→WW+W−→ l±υlυ+lυ− studies, where I was taking care of all the steps of the analysis: from the MC production, until the final data format and their analysis, with a strong focus on GRID production-techniques, obtaining apart of technical knowledge, a Master Thesis from one of the members of team.

Thesis abstract (April 2013):

The search for the Standard Model (SM) Higgs boson is one of the most crucial goals of the LHC physics program. The high centre-of-mass energy (√s) of the LHC enables not just to search for the SM Higgs boson at low mass, i.e. be- tween 120 GeV − 2×mZ, but to extend it to much larger masses, in the range 200 GeV − 1 TeV. Although a large portion of last mass range is indirectly excluded at 95% Confidence Level (CL) by global fits to SM observables, it is crucial to complement such indirect limits by direct searches. Further, possible extensions to the SM can conspire to allow a heavy Higgs boson to be compatible with existing measurements and latest Higgs boson-candidate discovery where the crucial work was performed in the inclusion, for the first time into the ATLAS research program, of the study of the

H→ZZ(∗)→l±l±qq decay in the Low Mass range using 2011 data recorded at √s = 7 TeV, principal subject of this dissertation. Recently, taking the mentioned discover of a particle compatible with the Higgs boson (July 4th, 2012) like a strong guide to continue this research using the full available 2012 recorded data at √s = 8 TeV, and knowing that several Beyond SM models (BSM), compatible with the observed ∼ 125 GeV resonance (h1) and Electroweak (EW) fit, predict a second ’SM-like’ heavy Higgs state h2, it will be possible to search for SM resonance in the heavy mass region (400 GeV − 1 TeV) looking for excess with respect to the SM predictions regardless which model could produce such excess. This is our actual research activity into the ATLAS experiment and a view of its state of the art is included into this dissertation, as the novel tools developed during such a studies.