[1] Univ Oxford, Oxford OX1 3RH, England
[2] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA
[3] Univ Atlantico, Carrera 30 Numero 8-49 Puerto Colombia, Atlantico, Colombia
[4] Georgian Tech Univ, 77 Kostava Str, Tbilisi 0160, Georgia
[5] Brookhaven Natl Lab, Upton, NY 11973 USA
[6] Univ Bristol, HH Wills Phys Lab, Tyndall Ave, Bristol BS8 1TL, Avon, England
[7] Variable Energy Cyclotron Ctr, 1-AF Bidhannagar, Kolkata 700064, W Bengal, India
[8] Univ Warwick, Coventry CV4 7AL, W Midlands, England
[9] Univ Sussex, Brighton BN1 9RH, E Sussex, England
[10] European Org Nucl Res, CERN, CH-1211 Geneva 23, Switzerland
[11] CERN, CH-1211 Geneva 23, Switzerland
[12] Swiss Fed Inst Technol, Inst Particle Phys, Zurich, Switzerland
[13] Argonne Natl Lab, Argonne, IL 60439 USA
[14] Univ Liverpool, Liverpool L69 7ZE, Merseyside, England
[15] STEC Rutherford Appleton Lab, Harwell Campus, Didcot OX11 0QX, Oxon, England
[16] Univ Antananarivo, BP 566, Antananarivo 101, Madagascar
[17] Lab Instrumentacao Fis Expt Particulas, Ave Gama Pint 2,Complexo Interdisciplinar 3is, P-1649003 Lisbon, Portugal
[18] SLAC Natl Acceleratory Lab, Menlo Pk, CA 94025 USA
[19] Inst Fis Corpuscular, Catedratico Jose Beltran 2, E-46980 Paterna, Valencia, Spain
[20] Univ Basel, Klingelbergstr 82, CH-4056 Basel, Switzerland
[21] Univ Colima, 340 Colonia Villa San Sebastian Colima, Colima, Mexico
[22] Univ Bern, Sidlerstr 5, CH-3012 Bern, Switzerland
[23] Columbia Univ, New York, NY 10027 USA
[24] Univ EIA, Via Jose Maria Cordoba Km 2 200, Envigado, Antigua & Barbu
[25] Univ Texas Arlington, Arlington, TX 76019 USA
[26] Univ Cincinnati, Cincinnati, OH 45221 USA
[27] Kyiv Natl Univ, UA-01601 Kiev, Ukraine
[28] Inst Phys 2 Infinis Lyon, Rue E Fermi 4, F-69622 Villeurbanne, France
[29] Pacific Northwest Natl Lab, Richland, WA 99352 USA
[30] UCL, London WC1E 6BT, England
[31] Univ Paris, CNRS, Astroparticule & Cosmol, F-75006 Paris, France
[32] Yale Univ, New Haven, CT 06520 USA
[33] Univ Calif Irvine, Irvine, CA 92697 USA
[34] Univ Hyderabad, Hyderabad 500046, Telangana, India
[35] Univ Lisbon, Inst Super Tecn IST, Lisbon, Portugal
[36] Univ N Dakota, 3501 Univ Ave, Grand Forks, ND 58202 USA
[37] Univ Michigan, Ann Arbor, MI 48109 USA
[38] Univ Guanajuato, Guanajuato 37000, Mexico
[39] Univ Lisbon, Fac Ciencias, FCUL, Lisbon, Portugal
[40] Univ Tennessee, Knoxville, TN 37996 USA
[41] Oregon State Univ, Corvallis, OR 97331 USA
[42] Univ Manchester, Oxford Rd, Manchester M13 9PL, Lancs, England
[43] Nikhef Natl Inst Subat Phys, Sci Pk, Amsterdam, Netherlands
[44] Pontificia Univ Catolica Peru, Apartado 1761, Lima, Peru
[45] Ohio State Univ, 191 W Woodruff Ave, Columbus, OH 43210 USA
[46] Colorado State Univ, Ft Collins, CO 80523 USA
[47] Univ Pisa, Theor Div, Largo B Pontecorvo 3, I-56127 Pisa, Italy
[48] Ist Nazl Fis Nucl, Sez Catania, I-95123 Catania, Italy
[49] Univ Catania, Dipartimento Fis & Astron E Majorana, Catania, Italy
[50] CIEMAT, Ctr Invest Energet Medioambientales & Tecnol, Ave Complutense 40, E-28040 Madrid, Spain