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2. Evaluación de patógenos en clones de lulo (Solanum quitoense Lam.)

Author

Montes Rojas Consuelo, Quiñónez Magally Andrea, Prado C Fabio A., Muñoz Luis Armando, and Terán G Víctor Felipe

Subjects
Solanum quitoense Lam, enfermedades de plantas, Phytophthora infestans, Fusarium oxysporum, Colletotrichum gloeosporioides, Cladosporium, plant diseases, Phytophthora infestans, Fusarium oxysporum, Colletotrichum gloeosporioides, Cladosporium, Agriculture
Abstract

En el noroccidente de Popayán, Colombia, se evaluó la presencia de plagas causadas por patógenos en 42 clones de lulo (Solanum quitoense Lam.). Los clones fueron plantados en bolsas plásticas, donde se desarrollaron por 3 semanas antes de ser trasplantados al campo. Se utilizó un diseño de bloques completos al azar con cuatro repeticiones, la parcela útil estuvo conformada por 6 plantas, las cuales se sembraron a 'tresbolillo' a 2.5 m entre surcos y 2 m entre plantas. Para determinar el efecto de las plagas en el cultivo, se calculó el porcentaje de incidencia y severidad del ataque. La incidencia se evaluó como porcentaje de plantas afectadas, y la severidad como porcentaje de tejido afectado por el patógeno. Las enfermedades más limitantes para los 42 clones fueron: gota (Phytophthora infestans) que provocó una mortalidad de plantas superior a 40%; fusarium (Fusarium oxysporum) que se presentó en 12 de los clones evaluados; antracnosis (Colletotrichum sp.) que afectó 21 clones, los cuales se clasificaron entre tolerantes y medianamente tolerantes; y mancha clorótica (Cladosporium sp.) que afectó 21 clones, clasificados como susceptibles. Los clones PL19, PL24, PL11, PL35 fueron medianamente tolerantes. Se seleccionaron por supervivencia los clones: JY E1 (52.2%), PH E 1 (45.8%), VM E2 (45.8%); por supervivencia y por tolerancia a Fusarium oxysporum los clones PL35, PL11, PL24, PL8, PL19, 120052, 120043, ORE1, AGE1. Los clones SER 7, SER 15, SER 9, SEC 31, SEC 27 presentaron alta mortalidad pero se seleccionaron por ser medianamente tolerantes a gota, tolerantes a antracnosis y medianamente resistentes a nematodos, con buen vigor y producción.

Published
2010

4. Lignocellulosic Waste Availability for Microbial Production of Fuels, Biochemicals, and Products

Author

Antunes, F. A. F., primary, Ingle, A. P., additional, Abdeshahian, P., additional, Ribeaux, D. R., additional, Prado, C. A., additional, Muñoz, S. S., additional, Barbosa, F. G., additional, Balbino, T. R., additional, Castro-Alonso, M. J., additional, Reyes-Guzman, R., additional, Arruda, G. L., additional, Cruz-Santos, M. M., additional, Mier-Alba, E., additional, Rocha, T. M., additional, Ruiz, E. D., additional, Melo, Y. C. S., additional, Cunha, M. L. S., additional, Santos, J. C., additional, and da Silva, S. S., additional

Published
2022
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5. Recent Advancements and Prospects of Using Lignocellulosic Wastes for Microbial Production of Fuels, Biochemicals, and Products

Author

Antunes, F. A. F., primary, Ingle, A. P., additional, Abdeshahian, P., additional, Ribeaux, D. R., additional, Prado, C. A., additional, Muñoz, S. S., additional, Barbosa, F. G., additional, Balbino, T. R., additional, Castro-Alonso, M. J., additional, Reyes-Guzman, R., additional, Arruda, G. L., additional, Cruz-Santos, M. M., additional, Mier-Alba, E., additional, Rocha, T. M., additional, Ruiz, E. D., additional, Melo, Y. C. S., additional, Cunha, M. L. S., additional, Santos, J. C., additional, and da Silva, S. S., additional

Published
2022
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6. Relative particle yield fluctuations in Pb--Pb collisions at sNN=2.76TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, BazoAlba, JL, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, Biro, G, and Biswas, R

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

First results on K / π, p / π and K/p fluctuations are obtained with the ALICE detector at the CERN LHC as a function of centrality in Pb--Pb collisions at sNN=2.76TeV. The observable ν dyn , which is defined in terms of the moments of particle multiplicity distributions, is used to quantify the magnitude of dynamical fluctuations of relative particle yields and also provides insight into the correlation between particle pairs. This study is based on a novel experimental technique, called the Identity Method, which allows one to measure the moments of multiplicity distributions in case of incomplete particle identification. The results for p / π show a change of sign in ν dyn from positive to negative towards more peripheral collisions. For central collisions, the results follow the smooth trend of the data at lower energies and ν dyn exhibits a change in sign for p / π and K/p.

Published
2019

7. Integrated Production of Ethanol from Starch and Sucrose

Author

Prado, C. A., primary, Sánchez-Muñoz, S., additional, Terán-Hilares, R. T., additional, Carvalho, L. T., additional, De Arruda, L. G., additional, Cunha, M. L. Silva da, additional, Abdeshahian, P., additional, Silva, S. S. Da, additional, Balagurusamy, N., additional, and Santos, J. C., additional

Published
2022
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9. Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb–Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

First results on the longitudinal asymmetry and its effect on the pseudorapidity distributions in Pb–Pb collisions at sNN = 2.76 TeV at the Large Hadron Collider are obtained with the ALICE detector. The longitudinal asymmetry arises because of an unequal number of participating nucleons from the two colliding nuclei, and is estimated for each event by measuring the energy in the forward neutron-Zero-Degree-Calorimeters (ZNs). The effect of the longitudinal asymmetry is measured on the pseudorapidity distributions of charged particles in the regions |η|

Published
2018

10. First measurement of Ξc0 production in pp collisions at s=7 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bazo Alba, JL, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhaduri, PP, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The production of the charm-strange baryon Ξc0 is measured for the first time at the LHC via its semileptonic decay into eΞ−+νe in pp collisions at s=7 TeV with the ALICE detector. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 1

Published
2018

11. Longitudinal asymmetry and its effect on pseudorapidity distributions in Pb–Pb collisions at s NN = 2.76  TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

First results on the longitudinal asymmetry and its effect on the pseudorapidity distributions in Pb–Pb collisions at sNN = 2.76 TeV at the Large Hadron Collider are obtained with the ALICE detector. The longitudinal asymmetry arises because of an unequal number of participating nucleons from the two colliding nuclei, and is estimated for each event by measuring the energy in the forward neutron-Zero-Degree-Calorimeters (ZNs). The effect of the longitudinal asymmetry is measured on the pseudorapidity distributions of charged particles in the regions |η|

Published
2018

12. First measurement of Ξ c 0 production in pp collisions at s = 7  TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Alba, JL Bazo, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhaduri, PP, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

The production of the charm-strange baryon Ξc0 is measured for the first time at the LHC via its semileptonic decay into eΞ−+νe in pp collisions at s=7 TeV with the ALICE detector. The transverse momentum (pT) differential cross section multiplied by the branching ratio is presented in the interval 1

Published
2018

13. Search for collectivity with azimuthal J/ψ-hadron correlations in high multiplicity p–Pb collisions at sNN=5.02 and 8.16 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bazo Alba, JL, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, Biro, G, and Biswas, R

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

We present a measurement of azimuthal correlations between inclusive J/ψ and charged hadrons in p–Pb collisions recorded with the ALICE detector at the CERN LHC. The J/ψ are reconstructed at forward (p-going, 2.03

Published
2018

14. Search for collectivity with azimuthal J/ψ-hadron correlations in high multiplicity p–Pb collisions at s NN = 5.02 and 8.16 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Alba, JL Bazo, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, Biro, G, and Biswas, R

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

We present a measurement of azimuthal correlations between inclusive J/ψ and charged hadrons in p–Pb collisions recorded with the ALICE detector at the CERN LHC. The J/ψ are reconstructed at forward (p-going, 2.03

Published
2018

15. D-Meson Azimuthal Anisotropy in Midcentral Pb-Pb Collisions at sNN=5.02 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

The azimuthal anisotropy coefficient v_{2} of prompt D^{0}, D^{+}, D^{*+}, and D_{s}^{+} mesons was measured in midcentral (30%-50% centrality class) Pb-Pb collisions at a center-of-mass energy per nucleon pair sqrt[s_{NN}]=5.02  TeV, with the ALICE detector at the LHC. The D mesons were reconstructed via their hadronic decays at midrapidity, |y|

Published
2018

16. π0 and η meson production in proton-proton collisions at s=8 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

An invariant differential cross section measurement of inclusive π0 and η meson production at mid-rapidity in pp collisions at s=8 TeV was carried out by the ALICE experiment at the LHC. The spectra of π0 and η mesons were measured in transverse momentum ranges of 0.33.5 GeV/c. However, a deviation from this empirical scaling rule is observed for transverse momenta below pT

Published
2018

17. Production of deuterons, tritons, He 3 nuclei, and their antinuclei in pp collisions at s =0.9, 2.76, and 7 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalá, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Abstract

Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|

Published
2018

18. Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at s NN =2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Abstract

The correlations between event-by-event fluctuations of anisotropic flow harmonic amplitudes have been measured in Pb-Pb collisions at sNN=2.76 TeV with the ALICE detector at the Large Hadron Collider. The results are reported in terms of multiparticle correlation observables dubbed symmetric cumulants. These observables are robust against biases originating from nonflow effects. The centrality dependence of correlations between the higher order harmonics (the quadrangular v4 and pentagonal v5 flow) and the lower order harmonics (the elliptic v2 and triangular v3 flow) is presented. The transverse momentum dependences of correlations between v3 and v2 and between v4 and v2 are also reported. The results are compared to calculations from viscous hydrodynamics and a multiphase transport (AMPT) model calculations. The comparisons to viscous hydrodynamic models demonstrate that the different order harmonic correlations respond differently to the initial conditions and the temperature dependence of the ratio of shear viscosity to entropy density (η/s). A small average value of η/s is favored independent of the specific choice of initial conditions in the models. The calculations with the AMPT initial conditions yield results closest to the measurements. Correlations among the magnitudes of v2, v3, and v4 show moderate pT dependence in midcentral collisions. This might be an indication of possible viscous corrections to the equilibrium distribution at hadronic freeze-out, which might help to understand the possible contribution of bulk viscosity in the hadronic phase of the system. Together with existing measurements of individual flow harmonics, the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions.

Published
2018

19. The ALICE transition radiation detector: Construction, operation, and performance

Author

Acharya, S, Adam, J, Adamova, D, Adler, C, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Antonczyk, D, Arend, A, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshauser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badala, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnafoldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartos, D, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batyunya, B, Batzing, PC, Baumann, C, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, and Bhati, AK

Subjects
Transition radiation detector, Multi-wire proportional drift chamber, Fibre/foam sandwich radiator, Xenon-based gas mixture, Tracking, Ionisation energy loss, dE/dx, TR, Electron-pion identification, Neural network, Trigger, Nuclear & Particles Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Other Physical Sciences
Abstract

The Transition Radiation Detector (TRD) was designed and built to enhance the capabilities of the ALICE detector at the Large Hadron Collider (LHC). While aimed at providing electron identification and triggering, the TRD also contributes significantly to the track reconstruction and calibration in the central barrel of ALICE. In this paper the design, construction, operation, and performance of this detector are discussed. A pion rejection factor of up to 410 is achieved at a momentum of 1 GeV/c in p-Pb collisions and the resolution at high transverse momentum improves by about 40% when including the TRD information in track reconstruction. The triggering capability is demonstrated both for jet, light nuclei, and electron selection.

Published
2018

20. Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bazo Alba, JL, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v2 reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb–Pb collisions at sNN=2.76 TeV. The two-particle correlator 〈cos⁡(φα−φβ)〉 calculated for different combinations of charges α and β is almost independent of v2 (for a given centrality), while the three-particle correlator 〈cos⁡(φα+φβ−2Ψ2)〉 scales almost linearly both with the event v2 and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on v2 points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10–50% centrality interval is found to be 26–33% at 95% confidence level.

Published
2018

21. Systematic studies of correlations between different order flow harmonics in Pb-Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

The correlations between event-by-event fluctuations of anisotropic flow harmonic amplitudes have been measured in Pb-Pb collisions at sNN=2.76 TeV with the ALICE detector at the Large Hadron Collider. The results are reported in terms of multiparticle correlation observables dubbed symmetric cumulants. These observables are robust against biases originating from nonflow effects. The centrality dependence of correlations between the higher order harmonics (the quadrangular v4 and pentagonal v5 flow) and the lower order harmonics (the elliptic v2 and triangular v3 flow) is presented. The transverse momentum dependences of correlations between v3 and v2 and between v4 and v2 are also reported. The results are compared to calculations from viscous hydrodynamics and a multiphase transport (AMPT) model calculations. The comparisons to viscous hydrodynamic models demonstrate that the different order harmonic correlations respond differently to the initial conditions and the temperature dependence of the ratio of shear viscosity to entropy density (η/s). A small average value of η/s is favored independent of the specific choice of initial conditions in the models. The calculations with the AMPT initial conditions yield results closest to the measurements. Correlations among the magnitudes of v2, v3, and v4 show moderate pT dependence in midcentral collisions. This might be an indication of possible viscous corrections to the equilibrium distribution at hadronic freeze-out, which might help to understand the possible contribution of bulk viscosity in the hadronic phase of the system. Together with existing measurements of individual flow harmonics, the presented results provide further constraints on the initial conditions and the transport properties of the system produced in heavy-ion collisions.

Published
2018

22. Production of deuterons, tritons, He3 nuclei, and their antinuclei in pp collisions at s=0.9, 2.76, and 7 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalá, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, Nuclear and plasma physics
Abstract

Invariant differential yields of deuterons and antideuterons in pp collisions at s = 0.9, 2.76 and 7 TeV and the yields of tritons, He3 nuclei, and their antinuclei at s = 7 TeV have been measured with the ALICE detector at the CERN Large Hadron Collider. The measurements cover a wide transverse momentum (pT) range in the rapidity interval |y|

Published
2018

23. Constraining the magnitude of the Chiral Magnetic Effect with Event Shape Engineering in Pb–Pb collisions at s NN = 2.76  TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Alba, JL Bazo, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

In ultrarelativistic heavy-ion collisions, the event-by-event variation of the elliptic flow v2 reflects fluctuations in the shape of the initial state of the system. This allows to select events with the same centrality but different initial geometry. This selection technique, Event Shape Engineering, has been used in the analysis of charge-dependent two- and three-particle correlations in Pb–Pb collisions at sNN=2.76 TeV. The two-particle correlator 〈cos⁡(φα−φβ)〉 calculated for different combinations of charges α and β is almost independent of v2 (for a given centrality), while the three-particle correlator 〈cos⁡(φα+φβ−2Ψ2)〉 scales almost linearly both with the event v2 and charged-particle pseudorapidity density. The charge dependence of the three-particle correlator is often interpreted as evidence for the Chiral Magnetic Effect (CME), a parity violating effect of the strong interaction. However, its measured dependence on v2 points to a large non-CME contribution to the correlator. Comparing the results with Monte Carlo calculations including a magnetic field due to the spectators, the upper limit of the CME signal contribution to the three-particle correlator in the 10–50% centrality interval is found to be 26–33% at 95% confidence level.

Published
2018

24. First measurement of jet mass in Pb–Pb and p–Pb collisions at the LHC

Author

Acharya, S, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics
Abstract

This letter presents the first measurement of jet mass in Pb–Pb and p–Pb collisions at sNN=2.76 TeV and sNN=5.02 TeV, respectively. Both the jet energy and the jet mass are expected to be sensitive to jet quenching in the hot Quantum Chromodynamics (QCD) matter created in nuclear collisions at collider energies. Jets are reconstructed from charged particles using the anti-kT jet algorithm and resolution parameter R=0.4. The jets are measured in the pseudorapidity range |ηjet|

Published
2018

25. J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at sNN=5.02TeV

Author

Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

We report measurements of the inclusive J/ψ yield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dη in p–Pb collisions at sNN=5.02TeV with ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/ψ yield with normalised dNch/dη, measured at mid-rapidity, is observed at mid-rapidity and backward rapidity. At forward rapidity, a saturation of the relative yield is observed for high charged-particle multiplicities. The normalised average transverse momentum at forward and backward rapidities increases with multiplicity at low multiplicities and saturates beyond moderate multiplicities. In addition, the forward-to-backward nuclear modification factor ratio is also reported, showing an increasing suppression of J/ψ production at forward rapidity with respect to backward rapidity for increasing charged-particle multiplicity.

Published
2018

26. J/ψ production as a function of charged-particle pseudorapidity density in p–Pb collisions at s NN = 5.02 TeV

Author

Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Prado, C Alves Garcia, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

We report measurements of the inclusive J/ψ yield and average transverse momentum as a function of charged-particle pseudorapidity density dNch/dη in p–Pb collisions at sNN=5.02TeV with ALICE at the LHC. The observables are normalised to their corresponding averages in non-single diffractive events. An increase of the normalised J/ψ yield with normalised dNch/dη, measured at mid-rapidity, is observed at mid-rapidity and backward rapidity. At forward rapidity, a saturation of the relative yield is observed for high charged-particle multiplicities. The normalised average transverse momentum at forward and backward rapidities increases with multiplicity at low multiplicities and saturates beyond moderate multiplicities. In addition, the forward-to-backward nuclear modification factor ratio is also reported, showing an increasing suppression of J/ψ production at forward rapidity with respect to backward rapidity for increasing charged-particle multiplicity.

Published
2018

27. Kaon femtoscopy in Pb-Pb collisions at s NN =2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Abstract

We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at sNN=2.76 TeV. Femtoscopy is used to measure the space-time characteristics of particle production from the effects of quantum statistics and final-state interactions in two-particle correlations. Kaon femtoscopy is an important supplement to that of pions because it allows one to distinguish between different model scenarios working equally well for pions. In particular, we compare the measured three-dimensional kaon radii with a purely hydrodynamical calculation and a model where the hydrodynamic phase is followed by a hadronic rescattering stage. The former predicts an approximate transverse mass (mT) scaling of source radii obtained from pion and kaon correlations. This mT scaling appears to be broken in our data, which indicates the importance of the hadronic rescattering phase at LHC energies. A kT scaling of pion and kaon source radii is observed instead. The time of maximal emission of the system is estimated by using the three-dimensional femtoscopic analysis for kaons. The measured emission time is larger than that of pions. Our observation is well supported by the hydrokinetic model predictions.

Published
2017

28. J/ψ Elliptic Flow in Pb-Pb Collisions at sNN=5.02 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Al-Turany, M, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Ali, Y, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Alba, JL Bazo, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhattacharjee, B, Bhom, J, Bianchi, A, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

We report a precise measurement of the J/ψ elliptic flow in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV with the ALICE detector at the LHC. The J/ψ mesons are reconstructed at midrapidity (|y|

Published
2017

29. Kaon femtoscopy in Pb-Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adam, J, Adamová, D, Adolfsson, J, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

We present the results of three-dimensional femtoscopic analyses for charged and neutral kaons recorded by ALICE in Pb-Pb collisions at sNN=2.76 TeV. Femtoscopy is used to measure the space-time characteristics of particle production from the effects of quantum statistics and final-state interactions in two-particle correlations. Kaon femtoscopy is an important supplement to that of pions because it allows one to distinguish between different model scenarios working equally well for pions. In particular, we compare the measured three-dimensional kaon radii with a purely hydrodynamical calculation and a model where the hydrodynamic phase is followed by a hadronic rescattering stage. The former predicts an approximate transverse mass (mT) scaling of source radii obtained from pion and kaon correlations. This mT scaling appears to be broken in our data, which indicates the importance of the hadronic rescattering phase at LHC energies. A kT scaling of pion and kaon source radii is observed instead. The time of maximal emission of the system is estimated by using the three-dimensional femtoscopic analysis for kaons. The measured emission time is larger than that of pions. Our observation is well supported by the hydrokinetic model predictions.

Published
2017

30. Measuring KS0K± interactions using Pb–Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, and Bianchin, C

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

We present the first ever measurements of femtoscopic correlations between the KS0 and K± particles. The analysis was performed on the data from Pb–Pb collisions at sNN=2.76 TeV measured by the ALICE experiment. The observed femtoscopic correlations are consistent with final-state interactions proceeding via the a0(980) resonance. The extracted kaon source radius and correlation strength parameters for KS0K− are found to be equal within the experimental uncertainties to those for KS0K+. Comparing the results of the present study with those from published identical-kaon femtoscopic studies by ALICE, mass and coupling parameters for the a0 resonance are tested. Our results are also compatible with the interpretation of the a0 having a tetraquark structure instead of that of a diquark.

Published
2017

31. Linear and non-linear flow mode in Pb–Pb collisions at sNN=2.76 TeV

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The second and the third order anisotropic flow, V2 and V3, are mostly determined by the corresponding initial spatial anisotropy coefficients, ε2 and ε3, in the initial density distribution. In addition to their dependence on the same order initial anisotropy coefficient, higher order anisotropic flow, Vn (n>3), can also have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this Letter we investigate the linear and non-linear modes in higher order anisotropic flow Vn for n=4, 5, 6 with the ALICE detector at the Large Hadron Collider. The measurements are done for particles in the pseudorapidity range |η|

Published
2017

32. Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at √sNN = 2.76 TeV at the LHC

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The transverse momentum (pT) spectra and elliptic flow coefficient (v2) of deuterons and anti-deuterons at mid-rapidity (| y| < 0.5) are measured with the ALICE detector at the LHC in Pb–Pb collisions at sNN = 2.76 TeV. The measurement of the pTspectra of (anti-)deuterons is done up to 8 GeV/ c in 0–10% centrality class and up to 6 GeV/ c in 10–20% and 20–40% centrality classes. The v2is measured in the 0.8  1.8 GeV/ c within the experimental uncertainties. The measurement of the coalescence parameter B2is performed, showing a pT dependence in contrast with the simplest coalescence model, which fails to reproduce also the measured v2 coefficient. In addition, the coalescence parameter B2 and the elliptic flow coefficient in the 20–40% centrality interval are compared with the AMPT model which is able, in its version without string melting, to reproduce the measured v2(pT) and the B2(pT) trend.

Published
2017

33. Measurement of deuteron spectra and elliptic flow in Pb–Pb collisions at sNN = 2.76 TeV at the LHC

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

The transverse momentum (pT) spectra and elliptic flow coefficient (v2) of deuterons and anti-deuterons at mid-rapidity (| y| < 0.5) are measured with the ALICE detector at the LHC in Pb–Pb collisions at sNN = 2.76 TeV. The measurement of the pTspectra of (anti-)deuterons is done up to 8 GeV/ c in 0–10% centrality class and up to 6 GeV/ c in 10–20% and 20–40% centrality classes. The v2is measured in the 0.8  1.8 GeV/ c within the experimental uncertainties. The measurement of the coalescence parameter B2is performed, showing a pT dependence in contrast with the simplest coalescence model, which fails to reproduce also the measured v2 coefficient. In addition, the coalescence parameter B2 and the elliptic flow coefficient in the 20–40% centrality interval are compared with the AMPT model which is able, in its version without string melting, to reproduce the measured v2(pT) and the B2(pT) trend.

Published
2017

36. Anomalous Evolution of the Near-Side Jet Peak Shape in Pb-Pb Collisions at sNN=2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract

The measurement of two-particle angular correlations is a powerful tool to study jet quenching in a p_{T} region inaccessible by direct jet identification. In these measurements pseudorapidity (Δη) and azimuthal (Δφ) differences are used to extract the shape of the near-side peak formed by particles associated with a higher p_{T} trigger particle (1

Published
2017

37. Evolution of the longitudinal and azimuthal structure of the near-side jet peak in Pb-Pb collisions at sNN =2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Abstract

In two-particle angular correlation measurements, jets give rise to a near-side peak, formed by particles associated to a higher-pT trigger particle. Measurements of these correlations as a function of pseudorapidity (Δη) and azimuthal (Δφ) differences are used to extract the centrality and pT dependence of the shape of the near-side peak in the pT range 1

Published
2017

38. Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC

Author

The ALICE collaboration, Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Heavy Ion Experiments, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract

The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at sNN=2.76 TeV and p-Pb collisions at sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region |η| < 0.8 as a function of centrality and transverse momentum pT using two observables, to search for evidence of pT-dependent flow vector fluctuations. For Pb-Pb collisions at 2.76 TeV, the measurements indicate that pT-dependent fluctuations are only present for the second order flow vector. Similar results have been found for p-Pb collisions at 5.02 TeV. These measurements are compared to hydrodynamic model calculations with event-by-event geometry fluctuations in the initial state to constrain the initial conditions and transport properties of the matter created in Pb–Pb and p–Pb collisions.[Figure not available: see fulltext.].

Published
2017

39. Searches for transverse momentum dependent flow vector fluctuations in Pb-Pb and p-Pb collisions at the LHC

Author

Acharya, S, Adamová, D, Adolfsson, J, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Alba, JLB, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altenkamper, L, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andreou, D, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J

Subjects
Heavy Ion Experiments, Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The measurement of azimuthal correlations of charged particles is presented for Pb-Pb collisions at sNN=2.76 TeV and p-Pb collisions at sNN=5.02 TeV with the ALICE detector at the CERN Large Hadron Collider. These correlations are measured for the second, third and fourth order flow vector in the pseudorapidity region |η| < 0.8 as a function of centrality and transverse momentum pT using two observables, to search for evidence of pT-dependent flow vector fluctuations. For Pb-Pb collisions at 2.76 TeV, the measurements indicate that pT-dependent fluctuations are only present for the second order flow vector. Similar results have been found for p-Pb collisions at 5.02 TeV. These measurements are compared to hydrodynamic model calculations with event-by-event geometry fluctuations in the initial state to constrain the initial conditions and transport properties of the matter created in Pb–Pb and p–Pb collisions.[Figure not available: see fulltext.].

Published
2017

40. Evolution of the longitudinal and azimuthal structure of the near-side jet peak in Pb-Pb collisions at sNN=2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

In two-particle angular correlation measurements, jets give rise to a near-side peak, formed by particles associated to a higher-pT trigger particle. Measurements of these correlations as a function of pseudorapidity (Δη) and azimuthal (Δφ) differences are used to extract the centrality and pT dependence of the shape of the near-side peak in the pT range 1

Published
2017

41. Measurement of D-meson production at mid-rapidity in pp collisions at s=7 TeV

Author

Acharya, S, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured pT-differential cross sections are compared with the results of three perturbative QCD calculations.

Published
2017

42. Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at s=7 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Astronomical sciences, Atomic, molecular and optical physics, Particle and high energy physics
Abstract

Two-particle angular correlations were measured in pp collisions at s=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an open question.

Published
2017

43. Measurement of the production of high-pT electrons from heavy-flavour hadron decays in Pb–Pb collisions at sNN=2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract

Electrons from heavy-flavour hadron decays (charm and beauty) were measured with the ALICE detector in Pb–Pb collisions at a centre-of-mass of energy sNN=2.76 TeV. The transverse momentum (pT) differential production yields at mid-rapidity were used to calculate the nuclear modification factor RAA in the interval 3

Published
2017

44. Insight into particle production mechanisms via angular correlations of identified particles in pp collisions at √s=7 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

Two-particle angular correlations were measured in pp collisions at s=7 TeV for pions, kaons, protons, and lambdas, for all particle/anti-particle combinations in the pair. Data for mesons exhibit an expected peak dominated by effects associated with mini-jets and are well reproduced by general purpose Monte Carlo generators. However, for baryon–baryon and anti-baryon–anti-baryon pairs, where both particles have the same baryon number, a near-side anti-correlation structure is observed instead of a peak. This effect is interpreted in the context of baryon production mechanisms in the fragmentation process. It currently presents a challenge to Monte Carlo models and its origin remains an open question.

Published
2017

45. Measurement of D-meson production at mid-rapidity in pp collisions at √s=7 TeV

Author

Acharya, S, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The production cross sections for prompt charmed mesons D 0, D +, D ∗ + and Ds+ were measured at mid-rapidity in proton–proton collisions at a centre-of-mass energy s=7TeV with the ALICE detector at the Large Hadron Collider (LHC). D mesons were reconstructed from their decays D 0→ K -π+, D +→ K -π+π+, D ∗ +→ D 0π+, Ds++→K-K+π+, and their charge conjugates.With respect to previous measurements in the same rapidity region, the coverage in transverse momentum (pT) is extended and the uncertainties are reduced by a factor of about two. The accuracy on the estimated total c c ¯ production cross section is likewise improved. The measured pT-differential cross sections are compared with the results of three perturbative QCD calculations.

Published
2017

46. Production of muons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02 TeV

Author

Acharya, S, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, N, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, Bielčíková, J, and Bilandzic, A

Subjects
Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract

The production of muons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02 TeV was studied for 2

Published
2017

47. Measurement of electrons from beauty-hadron decays in p-Pb collisions at sNN=5.02 TeV and Pb-Pb collisions at sNN=2.76 TeV

Author

The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont-Moreno, E, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Heavy Ion Experiments, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract

The production of beauty hadrons was measured via semi-leptonic decays at mid-rapidity with the ALICE detector at the LHC in the transverse momentum interval 1

Published
2017

48. Measurement of electrons from beauty-hadron decays in p-Pb collisions at √sNN=5.02 TeV and Pb-Pb collisions at √sNN=2.76 TeV

Author

The ALICE collaboration, Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Balasubramanian, S, Baldisseri, A, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Belmont-Moreno, E, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Berceanu, I, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, and Bielčík, J

Subjects
Heavy Ion Experiments, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract

The production of beauty hadrons was measured via semi-leptonic decays at mid-rapidity with the ALICE detector at the LHC in the transverse momentum interval 1

Published
2017

49. K∗(892)0 and φ(1020) meson production at high transverse momentum in pp and Pb-Pb collisions at s NN =2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Batista Camejo, A, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Bello Martinez, H, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J

Abstract

The production of K∗(892)0 and φ(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at sNN=2.76TeV has been analyzed using a high luminosity data sample accumulated in 2011 with the ALICE detector at the Large Hadron Collider (LHC). Transverse momentum (pT) spectra have been measured for K∗(892)0 and φ(1020) mesons via their hadronic decay channels for pT up to 20GeV/c. The measurements in pp collisions have been compared to model calculations and used to determine the nuclear modification factor and particle ratios. The K∗(892)0/K ratio exhibits significant reduction from pp to central Pb-Pb collisions, consistent with the suppression of the K∗(892)0 yield at low pT due to rescattering of its decay products in the hadronic phase. In central Pb-Pb collisions the pT dependent φ(1020)/π and K∗(892)0/π ratios show an enhancement over pp collisions for pT≈3GeV/c, consistent with previous observations of strong radial flow. At high pT, particle ratios in Pb-Pb collisions are similar to those measured in pp collisions. In central Pb-Pb collisions, the production of K∗(892)0 and φ(1020) mesons is suppressed for pT>8GeV/c. This suppression is similar to that of charged pions, kaons, and protons, indicating that the suppression does not depend on particle mass or flavor in the light quark sector.

Published
2017

50. K*(892)0 and ϕ(1020) meson production at high transverse momentum in pp and Pb-Pb collisions at sNN=2.76 TeV

Author

Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmad, S, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Albuquerque, DSD, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, An, M, Andrei, C, Andrews, HA, Andronic, A, Anguelov, V, Anson, C, Antičić, T, Antinori, F, Antonioli, P, Anwar, R, Aphecetche, L, Appelshäuser, H, Arcelli, S, Arnaldi, R, Arnold, OW, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Ball, M, Baral, RC, Barbano, AM, Barbera, R, Barile, F, Barioglio, L, Barnaföldi, GG, Barnby, LS, Barret, V, Bartalini, P, Barth, K, Bartke, J, Bartsch, E, Basile, M, Bastid, N, Basu, S, Bathen, B, Batigne, G, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Beltran, LGE, Belyaev, V, Bencedi, G, Beole, S, Bercuci, A, Berdnikov, Y, Berenyi, D, Bertens, RA, Berzano, D, Betev, L, Bhasin, A, Bhat, IR, Bhati, AK, Bhattacharjee, B, Bhom, J, Bianchi, L, Bianchi, N, Bianchin, C, Bielčík, J, and Bielčíková, J

Subjects
Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Nuclear and plasma physics
Abstract

The production of K∗(892)0 and φ(1020) mesons in proton-proton (pp) and lead-lead (Pb-Pb) collisions at sNN=2.76TeV has been analyzed using a high luminosity data sample accumulated in 2011 with the ALICE detector at the Large Hadron Collider (LHC). Transverse momentum (pT) spectra have been measured for K∗(892)0 and φ(1020) mesons via their hadronic decay channels for pT up to 20GeV/c. The measurements in pp collisions have been compared to model calculations and used to determine the nuclear modification factor and particle ratios. The K∗(892)0/K ratio exhibits significant reduction from pp to central Pb-Pb collisions, consistent with the suppression of the K∗(892)0 yield at low pT due to rescattering of its decay products in the hadronic phase. In central Pb-Pb collisions the pT dependent φ(1020)/π and K∗(892)0/π ratios show an enhancement over pp collisions for pT≈3GeV/c, consistent with previous observations of strong radial flow. At high pT, particle ratios in Pb-Pb collisions are similar to those measured in pp collisions. In central Pb-Pb collisions, the production of K∗(892)0 and φ(1020) mesons is suppressed for pT>8GeV/c. This suppression is similar to that of charged pions, kaons, and protons, indicating that the suppression does not depend on particle mass or flavor in the light quark sector.

Published
2017

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