Física de Altas Energías / High Energy Physics

Seminarios del Grupo / Group-Seminars

El grupo de investigación está compuesto por: / Members of this group are:

Dr. Jürgen Engelfried (experimental, desde/since 1998).	Dr. Antonio Morelos Pineda (experimental, desde/since 1994).	Dra. Mariana Kirchbach (teoria, desde/since 2003).	Dr. Rubén Flores Mendieta (teoria, desde/since 1999).

Técnicos Académicos / Laboratory Technicians:

• Luz del Carmen Nuche Garza (desde/since 2003)
• Diana Diaz Romero (2001-2003)
• Eric Vazquez Jauregui (2000-2001)

Estancias Posdoctorales / PostDocs:

• Dr. Simon Rodriguez Rodriguez (2006)
• Dr. Christoph Hofmann (2001/2)
• Dr. Ricardo Lopez Fernandez (2001)

Visitantes / Visitors:

• Dr. Peter S. Cooper (Fermi National Accelerator Laboratory) (December 2009)
• Dr. Peter S. Cooper (Fermi National Accelerator Laboratory) (March 2009)
• Dr. Peter S. Cooper (Fermi National Accelerator Laboratory) (March 2008)
• Dr. Murray Moinester (Tel Aviv University) (May/June 2003)

Estudiantes asociados a este grupo / Students working in this group:

Doctorado / Ph.D.

• Maria de los Angeles Hernandez Ruiz (RFM)
• Alfredo Martin Castaneda Hernandez (AMP)
• Angel de Jesus Flores Castillo (JE)
• Jorge Amaro Reyes (JE)
• Ernesto Alejandro Blanco Covarrubias (JE, 2009)
• Cliffor Benjamin Compean Jasso (MK, 2009)
• Eric Vazquez Jauregui (JE, 2008)
• Ibrahim Torres Aguilar (JE, 2006)

Maestría / Master

• Nora Patricia Estrada Tristan (JE)
• Guillermo Lopez Hinojosa (JE, 2008)
• Joaquin Raul Acuna Martinez (RFM, 2007)
• Alfredo Martin Castaneda Hernandez (AMP, 2007)
• David Edwin Alvarez Castillo (MK, 2007)
• Luis Manuel Rico Gutierrez (MK, 2006)
• Jose Luis Sanchez Lopez (JE, 2006)
• Angel de Jesus Flores Castillo (JE, 2006)
• Raul Martin Acosta Meza (RFM, 2006)
• Cliffor Benjamin Compean Jasso (MK, 2005)
• Miguel Angel Olivo Gomez (JE, 2004)
• Julio Heriberto Mata Salazar (AMP, 2004)
• Ernesto Alejandro Blanco Covarrubias (JE, 2003)
• Juan Medellin Zapata (JE, 2002)
• Galilieo Dominguez Zacarias (AMP, 1998)
• Ricardo Lopez Fernandez (AMP, 1996)

Licenciatura / Undergraduate

• Nehemias Leija Martinez (MK, 2008)
• Ericka Reyes Sanchez (JE, 2006)
• Nora Patricia Estrada Tristan (JE, 2006)
• Alfredo Martin Castaneda Hernandez (AMP, 2005)
• Cliffor Benjamin Compean Jasso (MK, 2004)
• Jose Luis Sanchez Lopez (AMP, 2004)
• Joaquin Raul Acuna Martinez (RFM, 2003)
• Ernesto German Delgado Acosta (MK, 2003)
• Gabriela Alejandra Caldera Cabral (MK, 2003)
• Leticia Nohemi Luis Noriega (MK, 2003)
• Raul Hennings Yeomans (JE, 2003)
• Diana Diaz Romero (JE/AMP, 2002)
• Ibrahim Torres Aguilar (JE, 2000)

Página del laboratorio de Física de altas energías e instrumentación.

Publicaciones en revistas internacionales con arbitraje
Publications in international refereed journals

2009

SELEX Collaboration, A.Blanco-Covarrubias, J.Engelfried, ...., J.Amaro-Reyes,
N.Estrada, A.Flores-Castillo, G.López-Hinojosa, A.Morelos,
J.L.Sánchez-López, I.Torres, E.Vázquez-Jáuregui, et al.:

Nuclear Dependence of charm production.

European Physical Journal C 64/4 (2009) 637-644.

Ruben Flores-Mendieta:

Baryon magmetic moments

in large-N_c chiral perturbation theory.

Physical Review D 80, 094014 (2009).

C.B.Compean, M.Kirchbach:

Momentum space trigonometric Rosen-Morse potential

Journal of Physics A: Math. Theor. 42 365301 (2009)

C.Juarez-Leon, A.Martinez, M.Neri, J.J.Torres, Ruben Flores-Mendieta, and A.Garcia:

Radiative corrections to the three-body region of the Dalitz plot of baryon semileptonic decays with angular correlation between polarized emitted baryons and charged leptons: The initial-baryon rest frame case

Physical Review D 79, 057502 (2009)

2008

SELEX Collaboration, E.Vázquez-Jáuregui, J.Engelfried, ...., J.Amaro-Reyes,
A.Blanco-Covarrubias, N.Estrada, G.López-Hinojosa, A.Morelos,
J.L.Sánchez-López, I.Torres, et al.:

First Observation of the Cabibbo-suppressed Decays

Ξ_c⁺ → Σ⁺π^-π⁺ and Ξ_c⁺ → Σ^-π⁺π⁺ and Measurement

of their Branching Ratios.

Physics Letters B 666 (2008) 229-304.

M.Napsuciale, S.Rodriguez, E.G.Delagado-Acosta, M.Kirchbach:

Electromagnetic couplings of elementary vector particles.

Physical Review D 77, 014009 (2008).

2007

D.E.Alvarez-Castillo, M.Kirchbach:

Exact spectrum and wave functions of the hyperbolic

Scarf potential in terms of finite Romanovski polynomials.

Revista Mexicana de Física E 53 (2) 143-154 (2007).

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

Production of V⁰ pairs in the hyperon experiment WA89.

European Physical Journal C 52, 857-874 (2007).

C.Compean, M.Kirchbach:

Trigonometric quark confinement potential of QCD traits.

European Physical Journal A Vol. 33, pp. 1-4, 2007.

A.Raposo, H.J.Weber, D.E.Alvarez-Castillo, M.Kirchbach:

Romanovski polynomials in selected physics problems.

Central European Journal of Physics, Vol. 5 No. 3 p. 253, 2007.

M.Neri, A.Martinez, A.Garcia, J.J.Torres, R.Flores-Mendieta:

Precision radiative corrections to the semileptonic Dalitz plot

with angular correlation between polarized decaying baryon and

emitted charged lepton: Effects of the four-body region.

Physical Review D 75 097301 (2007).

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

Observation of a resonance in the K_s p decay

channel at a mass of 1765 MeV/c².

European Physical Journal C 50/3 (2007) 535-538.

2006

L.M.Rico, M.Kirchbach:

Causal Propagation of Spin-Cascades.

Modern Physics Letters A 21, 2961-2969 (2006).

J.J.Torres, M.Neri, A.Martinez, A.Garcia, R.Flores-Mendieta:

Precision radiative corrections to the semileptonic Dalitz plot

with angular correlation between polarized decaying and emitted

baryons: Effects of the four-body region.

Physical Review D 74, 077501 (2006).

Ruben Flores-Mendieta, Christoph P. Hofmann:

Renormalization of the baryon axial vector current

in large-N_c chiral perturbation theory.

Physical Review D 74, 094001 (2006).

M.Napsuciale, M.Kirchbach, S.Rodriguez:

Spin 3/2 Beyond the Rarita-Schwinger framework.

European Physical Journal A 29, 289-306 (2006).

C.B.Compean, M.Kirchbach:

The trigonometric Rosen-Morse potential in the supersymmetric

quantum mechanics and its exact solutions.

Journal of Physics A: Mathematical and General, 39 (2006) 547-557.

2005

P.S.Cooper, J.Engelfried:

Redesign of the CKM RICH Velocity Spectrometers for use

in a 1/4 GHz unseparated Beam.

Nuclear Instruments and Methods A, Volume 553, Pages 220-224 (2005).

N.Estrada, J.Engelfried, A.Morelos:

Ronchi Test for Flat Mirrors.

Nuclear Instruments and Methods A, Volume 553, Pages 172-176 (2005).

A.Morelos, J.Mata, P.S.Cooper, J.Engelfried, J.L.Aguilera-Servin:

Radial Tail Resolution in the SELEX RICH.

Nuclear Instruments and Methods A, Volume 553, Pages 237-241 (2005).

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

Search for the pentaquark candidate Θ(1540)⁺ in the hyperon beam experiment WA89.

Physical Review C 72, 055201 (2005).

SELEX Collaboration, A.Ocherashvili, M.A.Moinester, J.Russ, J.Engelfried, I.Torres, ..., J.Amaro-Reyes, A.Morelos, E.Vazquez-Jauregui, et al.:

Confirmation of the Double Charm Baryon Ξ_cc⁺ via its Decay to p D⁺ K^-.

Physics Letters B 628 (2005) 18-24.

M.Neri, A.Martinez, R.Flores-Mendieta, J.J.Torres, A.Garcia:

Precision radiative corrections to the Dalitz plot of baryon semileptonic

decays including the spin-momentum correlation of the decaying baryon

and the emitted charged lepton.

Physical Review D 72, 057503 (2005).

J.Engelfried:

The Experimental Discovery of Doubly-Charm Baryons.

Nuclear Physics A 752 (2005) 121c-128c.

G.Acosta, M. Kirchbach:

Massive gauge Fields and the Planck Scale

Found. Phys. Lett. Vol. 18, 157-170 (2005)

2004

M.Kirchbach:

N and Delta Resonances in the Rigid Quark--Di-Quark Model

Rev. Mex. Fis. 50, S2 56 (2004).

M.Napsuciale, M.Kirchbach:

Avoiding superluminal propagation of high spin waves via

projectors onto W² invariant subspaces.

J. Math. Phys. 45, 4515 (2004).

R.Flores-Mendieta:

V_us from hyperon semileptonic decays.

Physical Review D 70, 114036 (2004).

SELEX Collaboration, P.Pogodin, ..., J.Engelfried, A.Morelos, et al.:

Polarization of Σ⁺ Hyperons produced by 800GeV/c Protons on Cu and Be.

Physical Review D 70, 112005 (2004).

SELEX Collaboration, A.V.Evdokimov, ..., J.Amaro-Reyes, J.Engelfried, A.Morelos, I.Torres, E.Vazquez-Jauregui, et al.:

First observation of a narrow charm-strange meson D_sJ⁺(2632) -> D_s eta and D⁰ K⁺.

Physical Review Letters 93, 242001 (2004).

J.J.Torres, R.Flores-Mendieta, M.Neri, A.Martinez, A.Garcia:

Numerical Precision Radiative Corrections to the Dalitz Plot of

Baryon Semileptonic Decays including the Spin-Momentum Correlation of the

Decaying and Emitted Baryons.

Physical Reviev D 70, 093012 (2004).

M.Kirchbach, C.Compean, L.Noriega:

Beta Decays with Momentum Space Majorana Spinors.

European Physical Journal A 22 (2004) 149.

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

Search for the exotic Ξ^--(1860) Resonance in 340GeV/c Σ^- - Nucleus Interactions.

Physical Review C 70, 022201 (2004).

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

A measurement of Ξ^- polarization in inclusive production

by Σ^- of 340 GeV/c in C and Cu targets.

European Physical Journal C 36/3 (2004) 315-321.

SELEX Collaboration, V.V.Molchanov, ..., J.Engelfried, A.Morelos, et al.:

Upper limit on the decay Σ(1385)^- -> Σ^- γ

and cross section for γ Σ^- -> Λ π^-.

Physics Letters B 590 161-169.

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

A measurement of Λ polarization in inclusive production

by Σ^- of 340 GeV/c in C and Cu targets.

European Physical Journal C 32/2 (2004) 221-228.

2003

D.V.Ahluwalia, M.Kirchbach:

Spacetime Structure of Massive Majorana Neutrinos

and Massive Gravitinos.

Revista Mexicana de Fisica, Vol.49, Suppl.2 (2003) 1-15.

J.Engelfried, P.S.Cooper, A.Morelos, I.Torres:

Two RICH Detectors as Velocity Spectrometers in the CKM

Experiment.

Nuclear Instruments and Methods A 502 (2003) 62-65.

J.Engelfried et al.:

SELEX RICH Performance and Physics Results.

Nuclear Instruments and Methods A 502 (2003) 285-288.

SELEX Collaboration, M.Kaya, ..., J.Engelfried, A.Morelos, et al.:

Production Asymmetry for D_s  for 600 GeV/c Σ^- and π^- beam.

Physics Letters B 558 (2003) 34-40.

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

V⁰, anti-Ξ⁺ and Ω^- inclusive production cross sections

measured in hyperon experiment WA89 at CERN.

European Physical Journal C 26 (2003) 357-370.

M.Kirchbach:

Quantum States of Indefinite Spins: From Baryons to Massive

Gravitino.

Foundations of Physics, Vol.33, No.5 (2003) 761-790.

2002

SELEX Collaboration, M.Mattson, ..., J.Engelfried, A.Morelos, et al.:

First Observation of the Doubly Charmed Baryon Ξ_cc⁺.

Physical Review Letters 89 (2002) 112001.

SELEX Collaboration, A. Ocherashvili, ..., J.Engelfried, A.Morelos,

et al.:

First Measurement of π^- e to π^- e γ Pion Virtual Compton

Scattering.

Physical Review C 66 (2002) 034613.

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

Spectra and correlations for Λ and anti-Λ produced in

340GeV/c Σ^- + C and 260GeV/c n + C interactions.

Physical Review C 65 (2002) 042202.

SELEX Collaboration, F.Garcia, ..., J.Engelfried, A.Morelos, et al.:

Hadronic Production of Λ_c from 600GeV/c π^-, Σ^-, and p

beams.

Physics Letters B 528 (2002) 49-57.

A.Martínez, J.J.Torres, A.García, R.Flores-Mendieta:

Radiative corrections to all charge assignments of heavy quark

baryon semileptonic decays.

Physical Review D 66 (2002) 074014.

A.Bouzas, R.Flores-Mendieta:

One loop vertex integrals in heavy particle effective theories.

Journal of Physics G 28 (2002) 1179.

R.Flores-Mendieta, A.García, A.Martínez, J.J.Torres:

Radiative corrections to the semileptonic Dalitz plot with angular

correlation between polarized decaying and emitted hyperons:

effects of the four-body region.

Physical Review D 65 (2002) 074002.

2001

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

A study of Σ^±, Σ^*± and Σ(1385)^- production in the

hyperon beam experiment WA89 at CERN.

European Physical Journal C 22/2 (2001) 255-267.

WA89 Collaboration, M.I.Adamovich, ..., J.Engelfried, et al.:

A measurement of K^*± production in the hyperon beam experiment at

CERN.

European Physical Journal C 22/1 (2001) 47-54.

SELEX Collaboration, V.Molchanov, ..., J.Engelfried, A.Morelos,

et al.:

Radiative decay width of the a₂(1320)^- meson.

Physics Letters B 521 (2001) 171-180.

SELEX Collaboration, I.Eschrich, ..., J.Engelfried, A.Morelos,

et al.:

Measurement of the Σ^- Charge Radius by Σ^- - Electron

Elastic Scattering.

Physics Letters B 522 (2001) 233-239.

SELEX Collaboration, M. Iori, ..., J.Engelfried, A.Morelos, et al.:

Measurement of the D_s lifetime.

Physics Letters B 523 (2001) 22-28.

SELEX Collaboration, A. Kushnirenko, ..., J.Engelfried, A.Morelos,

et al.:

Precision measurements of the &Lambda_c⁺ and D⁰ lifetimes.

Physical Review Letters 86 (2001) 5243-5246.

A.Martínez, J.J.Torres, R.Flores-Mendieta, A.García:

Radiative corrections to the semileptonic Dalitz plot with angular

correlation between polarized decaying hyperons and

emitted charged leptons.

Physical Review D 63 (2001) 014025.

2000

SELEX Collaboration, U. Dersch, ..., J.Engelfried, A.Morelos,

et al.:

Total Cross Section Measurements with π^-, Σ^- and Protons on

Nuclei and Nucleons around 600GeV/c.

Nuclear Physics B 579 (2000) 277-312.

J.Engelfried:

Bariones, Kaones e Instrumentación en Altas Energías.

Proceedings of Primer Encuentro de Responsables de Proyectos

CONACYT del Área de Ciencias Exactas, Acapulco, February 22-25,

2000.

Revista Mexicana de Fisica 46 S2 (2000) 37-38.

WA89 Collaboration, M.I. Adamovich, ..., J.Engelfried, et al.:

Determination of the Total c cbar Production Cross Section in

340GeV/c Σ^- - Nucleus Interactions.

European Physical Journal C 13 (2000) 247-254.

SELEX Collaboration, S.Y.Jun, ..., J.Engelfried, A.Morelos, et al.:

Observation of the Cabibbo-suppressed decay Ξ_c⁺ to p K^- π⁺.

Physical Review Letters 84 (2000) 1857-1861.

R.Flores-Mendieta, C.P.Hofmann, E.Jenkins, A.V.Manohar:

Structure of large N cancellations in baryon chiral perturbation

theory.

Physical Review D 62 (2000) 034001.

R.Flores-Mendieta, C.P.Hofmann, E.Jenkins:

Baryon-pion scattering in the 1/N expansion: tree diagram

cancellations.

Physical Review D 61 (2000) 116014.

E761 Collaboration, R.F.Barbosa, ..., A.Morelos, et al.:

Measurement of the anti-Σ^- Lifetime and Direct Comparison

with the Σ⁺ Lifetime.

Physical Review D 61 (2000) 031101.