Research Group

The High Energy Physics group of BUAP has reached a solid degree of maturity in its theoretical and its experimental area, as well as in the use of high-performance computing tools.

It maintains collaboration and presence at international level and its contributions have outstanding indices of readership. Its development is the product of work carried out for over twenty years on issues from Higgs boson physics and the Quark Top to Standard Model extensions that include candidates for dark matter. In the experimental area, the participation in the Large Hadron Collider and in High Energy Astrophysics, such as the Pierre Auger Observatory and the High Altitude Water Cerenkov Observatory is outstanding.

Research Interest

Theory of fundamental interactions. Study of the classical and quantum theories of fundamental interactions of nature and its implications, as well as the development of new theories.


Phenomenology of elementary particles. Study of phenomenology of standard model of elementary particles and their extensions, as well as the experimental verification of predictions of these models.


Search for New Physics in Accelerators (LHC). Many of the theoretical proposals on New Physics are based on extending the Higgs sector of the Standard Model. For example, there is extensive experience in the Higgs multi-boson models, including their supersymmetric version, which predict a richer spectrum of new particles and phenomena that should be sought in the following stages of the LHC. Our research group actively participate in the projects related to this search at CERN.


New Theoretical Physics - Models and Foundations. Within the theoretical proposals, we have extensive experience in Higgs multi-boson models (including the Two Higgs Doublet Model), including its supersymmetric version, which predict a richer spectrum of new particles and phenomena than should be sought in the following stages of the LHC: It is of great interest to our group to study the predictions of such models for the Higgs sector, including the rare decays of quarks, leptons and Higgs bosons, as well as candidates for subject and dark energy


Detection of Ultra-energetic Cosmic Phenomena (HAWC and Pierre Auger). In study of cosmic phenomena, an area also known as Astroparticles, one of the great open problems, is to investigate nature of matter and dark energy, as well as the ultra-energetic cosmic phenomena. These aspects can be studied in HAWC and Pierre Auger experiments.

Current Member

Dr. Humberto A. Salazar Ibargüen

Dr. Salazar Ibargüen is head of the General Directorate of Computing and Information Technology and Communications and Researcher of the Faculty of Physical Mathematics Sciences at BUAP. His contributions gave evidence of the existence of the Higgs Bosson and made him a creditor of "The 2013 High Energy and Particle Physics Prize", granted by the European Physics Society.

He participates in the CMS experiments at CERN, in Geneva, Switzerland, of the High Altitude Water Cherenkov Gamma Ray Observatory (HAWC) and Pierre Auger Observatory, whose common purpose is to seek a new fundamental law in Physics.

Salazar Ibargüen also participated in the design, construction and testing of the TUS UV camera (Tracking Ultraviolet Set up, or ultraviolet tracking device), the main scientific instrument installed on the M. Lomonosov Satellite, which was launched on April 28, 2016.

For his outstanding career, he obtained the Medal of Science and Technology "Luis Rivera Terrazas" 2016, in the Basic Science category in the area of Exact and Natural Sciences.

Dr. Justiniano Lorenzo Díaz Cruz

Dr. Díaz Cruz obtained a Ph.D. degree in Physics from the University of Michigan (1989), currently a Professor-Researcher at BUAP. He has been an associate professor at the Autonomous University of Barcelona, CINVESTAV-IPN and at UAM-Azcapotzalco. Belongs to the Mexican Academy of Sciences, has been President of the Division of Particles and Fields of the Mexican Society of Physics, between 2000 and 2002.

He works in the area of Elementary Particle Physics whose contributions have motivated the Higgs search in the CERN LHC, including LFV type decays (h-> tau + mu), associated Higgs production with bottom and top, fusion of gluons to produce Higgs charged, rare top modes and supersymmetry, among others.

He has lectured at universities in the United States, Spain, Japan, England, Italy, Poland, Russia, Taiwan, Argentina and Brazil. He is a founding member of the international conference "Scalars", which takes place in Warsaw, Poland. He was the director of first PhD thesis on elementary particle theory held at a state university in Mexico.

He received the Puebla State Prize for Science and Technology 2009, in the area of Exact and Natural Sciences.


Dr. Alfonso Rosado Sánchez

Dr. Alfonso Rosado Sánchez did postgraduate studies in the Physics Department of CINVESTAV-IPN (master degree in 1981 and Ph.D. in 1984). Since March 1, 1991, he has been Professor at the Institute of Physics of BUAP. Also he has been a Professor in the Physics Department of CINVESTAV-IPN and at University of Americas-Puebla

His area of research is the physics of elementary particles. He has given specialized and divulgation conferences in Mexico and abroad. He is a member of the Mexican Academy of Sciences.

In recognition of his academic and scientific work, he received the State Prize for Science and Technology 2010, in the area of Exact Sciences of the Council of Science and Technology of the State of Puebla, and in May 2015 he received the "Medal of Performance and Teaching Trajectory", awarded by the Benemérita Universidad Autónoma de Puebla.

Dr. Gilberto Tavares Velasco

He graduated as Doctor of Science in 2001 under the guidance of Dr. Miguel Angel Pérez Angón, doing the thesis entitled "New physics in rare processes of the Z boson, the quark ty and the photon", work in the area of particle physics from which research articles published in international journals with arbitration were derived.

Since 2003 he has been a professor at the Faculty of Physical Mathematics of BUAP. From his stage as a graduate student he specialized in the area of phenomenology of weak interactions and the study of rare decay processes in extension theories of the Standard Model, with particular emphasis on computational techniques for calculating Feynman diagrams. level of a tie. The bulk of its scientific production has focused on the study of the phenomenology of the models with symmetry of standard SU (3) XU (1), the electromagnetic properties of the W boson, the electromagnetic and weak moments of the leptons, and the processes with flavor change mediated by neutral currents.


BUAP is the Fifth Institution of Latin America Outstanding in Physics


The US News Education company published a few days ago the 2018 results of the ranking of best educational institutions around the world. Taking into account all the areas of knowledge that were evaluated in this study, BUAP ranks 573 worldwide, ranked 15th in Latin America and second in Mexico, after UNAM. However, in the area of Physics, BUAP ranks number 187 worldwide, fifth in Latin America, after three Brazilian institutions and one in Argentina, and number one in Mexico.

In order to carry out this ranking, 1,295 institutions were evaluated that published at least 1,500 articles, books or high-impact conferences in a period of five years: 2011-2015.

For this evaluation, 13 indicators were taken into account, the source of which is the Clarivate Analytics company, through InCites-Web Of Science, that is, they are based on the scientific productivity of the universities:


Ranking indicator


Global research reputation


Regional research reputation 








Normalized citation impact 


Total citations


Number of publications that are among the 10 percent most cited


Percentage of total publications that are among the 10 percent most cited


International collaboration


Percentage of total publications with international collaboration


Number of highly cited papers that are among the top 1 percent most cited in their respective field


Percentage of total publications that are among the top 1 percent most highly cited papers




The position of a university worldwide depends on its scientific productivity and its impact at an international level (citations), and in the specific context of this ranking, the position is determined by the specific weight of each of the previous 13 indicators.

According to the InCites tool, from Clarivate Analytics, in BUAP the 10 disciplinary areas with the highest scientific output are:

  1. Physics, Particles & Fields
  2. Astronomy & Astrophysics
  3. Physics, Nuclear
  4. Physics, Multidisciplinary
  5. Optics
  6. Materials Science, Multidisciplinary
  7. Chemistry, Physical
  8. Physics, Applied
  9. Instruments & Instrumentation
  10. Chemistry, Multidisciplinary


In the following graph you can see the preponderance of each research topic that is cultivated at BUAP (the index in each area corresponds to the number of citations of articles in the 2013-2017 period).




The Research in High Energy Physics at BUAP, also known as Elemental Particle Physics, can be described in a few words as the one encompassed by Higgs Boson Physics, discovered in 2012, to extensions of the Standard Model that include candidates for the dark matter. In particular, BUAP participates on the one hand in two of the experiments of the Large Hadron Collider (LHC) located in the CERN Laboratory in Europe, namely ALICE and CMS and on the other in High Energy Astrophysics experiments such as the Pierre Auger Observatory located in Argentina and the HAWC Observatory located in high mountain near the Pico de Orizaba. Some of the investigations in these experiments are located in the disciplinary area of Nuclear Physics.

The researchers involved in the development of these subjects that have a scientific production of greater impact are professors of the Faculty of Mathematical Physics and of the Faculty of Sciences of the Electronics.


CIFFU is a semi-virtual research center specialized in Fundamental Physics within BUAP, with a multidisciplinary approach whose main objectives are:


  • Coordinate efforts to conduct frontier research
  • Develop high-level human resources
  • Disseminate science procuring high impact on the national educational system


The CIFFU includes the participation of several specialists who come from different dependencies of BUAP with similar interests, has a number of national and international collaborators, as well as undergraduate and postgraduate students and postdoctoral researchers. It proposes a series of actions to maintain and increase high impact national and international collaboration, with the objective of achieving global recognition and projecting BUAP as a leading institution in Mexico and Latin America in the field of Fundamental Physics, for the benefit of teachers, students and society in general.


Read more…


Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth

HAWC Collaboration (A.U. Abeysekara (Utah U.) et al.). Nov 16, 2017. 16 pp. 
Published in Science 358 (2017) no.6365, 911-914 
DOI: 10.1126/science.aan4880 

Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above 8×10188×1018 eV

Pierre Auger Collaboration (Alexander Aab (Nijmegen U., IMAPP) et al.). Sep 21, 2017. 19 pp. 
Published in Science 357 (2017) no.6537, 1266-1270 
DOI: 10.1126/science.aan4338 

A New Boson with a Mass of 125 GeV Observed with the CMS Experiment at the Large Hadron Collider

CMS Collaboration (Serguei Chatrchyan (Yerevan Phys. Inst.) et al.). 2012. 7 16 pp. 
Published in Science 338 (2012) 1569-1575 
DOI: 10.1126/science.1230816

Correlation of the highest energy cosmic rays with nearby extragalactic objects

Pierre Auger Collaboration (J. Abraham (Natl. Tech. U., San Rafael) et al.). Nov 2007. 22 pp. 
Published in Science 318 (2007) 938-943 

Observation of the rare B0s→μ+μ−Bs0→μ+μ− decay from the combined analysis of CMS and LHCb data

CMS and LHCb Collaborations (Vardan Khachatryan (Yerevan Phys. Inst.) et al.). Nov 17, 2014. 46 pp. 
Published in Nature 522 (2015) 68-72 
CERN-PH-EP-2014-220, CMS-BPH-13-007, LHCB-PAPER-2014-049 
DOI: 10.1038/nature14474 
e-Print: arXiv:1411.4413 [hep-ex] | PDF