Author: "Bartke, J" / Topic: nuclear - Searchworks@Jio Institute Digital Library Search Results

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185 results on '"Bartke, J"'

1. 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

2. 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

3. 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

4. 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

5. 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

6. 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

7. 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

8. 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

9. 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

10. 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

11. 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

12. 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

13. Energy dependence of forward-rapidity J/ψ and ψ(2S) production in pp 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: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALCE Collaboration, 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: We present results on transverse momentum ([Formula: see text]) and rapidity ([Formula: see text]) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive [Formula: see text] and [Formula: see text] at forward rapidity ([Formula: see text]) as well as [Formula: see text]-to-[Formula: see text] cross section ratios. These quantities are measured in pp collisions at center of mass energies [Formula: see text] and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at [Formula: see text], 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full [Formula: see text] range, provided that both contributions are summed. In particular, it is found that for [Formula: see text] GeV/c the non-prompt contribution reaches up to 50% of the total charmonium yield.
Published: 2017

14. Production of Σ(1385)± and Ξ(1530)0 in p–Pb collisions at sNN=5.02 TeV

Author: 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, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, 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 distributions of the strange and double-strange hyperon resonances (Σ(1385)±, Ξ(1530)0) produced in p-Pb collisions at sNN=5.02 TeV were measured in the rapidity range -0.5
Published: 2017

15. ϕ-Meson production at forward rapidity in p–Pb collisions at sNN=5.02 TeV and in pp collisions at s=2.76 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, 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, R, Belmont-Moreno, E, 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, Bielčík, J, and Bielčíková, J
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The first study of ϕ-meson production in p–Pb collisions at forward and backward rapidity, at a nucleon–nucleon centre-of-mass energy sNN=5.02 TeV, has been performed with the ALICE apparatus at the LHC. The ϕ-mesons have been identified in the dimuon decay channel in the transverse momentum (pT) range 1
Published: 2017

16. Production of π0 and η mesons up to high transverse momentum in pp collisions at 2.76 TeV

Author: Acharya, S, 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, Awes, T, 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, ALICE Collaboration, 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 invariant differential cross sections for inclusive [Formula: see text] and [Formula: see text] mesons at midrapidity were measured in pp collisions at [Formula: see text] TeV for transverse momenta [Formula: see text] GeV/c and [Formula: see text] GeV/c, respectively, using the ALICE detector. This large range in [Formula: see text] was achieved by combining various analysis techniques and different triggers involving the electromagnetic calorimeter (EMCal). In particular, a new single-cluster, shower-shape based method was developed for the identification of high-[Formula: see text] neutral pions, which exploits that the showers originating from their decay photons overlap in the EMCal. Above 4 GeV/[Formula: see text], the measured cross sections are found to exhibit a similar power-law behavior with an exponent of about 6.3. Next-to-leading-order perturbative QCD calculations differ from the measured cross sections by about 30% for the [Formula: see text], and between 30-50% for the [Formula: see text] meson, while generator-level simulations with PYTHIA 8.2 describe the data to better than 10-30%, except at [Formula: see text] GeV/[Formula: see text]. The new data can therefore be used to further improve the theoretical description of [Formula: see text] and [Formula: see text] meson production.
Published: 2017

17. Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at s=7 TeV and p–Pb collisions at sNN=5.02 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, 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, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, 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 azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at [Formula: see text] and p-Pb collisions at [Formula: see text] at the Large Hadron Collider. [Formula: see text], [Formula: see text], and [Formula: see text] mesons and their charge conjugates with transverse momentum [Formula: see text] and rapidity in the nucleon-nucleon centre-of-mass system [Formula: see text] (pp collisions) and [Formula: see text] (p-Pb collisions) were correlated to charged particles with [Formula: see text]. The yield of charged particles in the correlation peak induced by the jet containing the D meson and the peak width are compatible within uncertainties in the two collision systems. The data are described within uncertainties by Monte-Carlo simulations based on PYTHIA, POWHEG, and EPOS 3 event generators.
Published: 2017

18. J/ψ suppression at forward rapidity in Pb–Pb collisions at sNN=5.02 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, 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, 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 & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The inclusive J/ψ production has been studied in Pb–Pb and pp collisions at the centre-of-mass energy per nucleon pair sNN=5.02 TeV, using the ALICE detector at the CERN LHC. The J/ψ meson is reconstructed, in the centre-of-mass rapidity interval 2.5>y
Published: 2017

19. W and Z boson production in p-Pb collisions at sNN=5.02 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, 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, 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 W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 < ycms < −2.96) and forward (2.03 < ycms < 3.53) rapidity regions, corresponding to Pb-going and p-going directions, respectively. The Z-boson production cross section, with dimuon invariant mass of 60 < mμμ < 120 GeV/c2 and muon transverse momentum (pTμ) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pTμ > 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.[Figure not available: see fulltext.]
Published: 2017

20. W and Z boson production in p-Pb collisions at √sNN=5.02 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, and Bielčíková, J
Subjects: Heavy Ion Experiments, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The W and Z boson production was measured via the muonic decay channel in proton-lead collisions at sNN=5.02 TeV at the Large Hadron Collider with the ALICE detector. The measurement covers backward (−4.46 < ycms < −2.96) and forward (2.03 < ycms < 3.53) rapidity regions, corresponding to Pb-going and p-going directions, respectively. The Z-boson production cross section, with dimuon invariant mass of 60 < mμμ < 120 GeV/c2 and muon transverse momentum (pTμ) larger than 20 GeV/c, is measured. The production cross section and charge asymmetry of muons from W-boson decays with pTμ > 10 GeV/c are determined. The results are compared to theoretical calculations both with and without including the nuclear modification of the parton distribution functions. The W-boson production is also studied as a function of the collision centrality: the cross section of muons from W-boson decays is found to scale with the average number of binary nucleon-nucleon collisions within uncertainties.[Figure not available: see fulltext.]
Published: 2017

21. Charged-particle multiplicities in proton–proton collisions at s=0.9 to 8 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, Belmont, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
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: A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at s= 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range | η| < 2 , was carried out using the ALICE detector. Measurements were obtained for three event classes: inelastic, non-single diffractive and events with at least one charged particle in the pseudorapidity interval | η| < 1. The use of an improved track-counting algorithm combined with ALICE’s measurements of diffractive processes allows a higher precision compared to our previous publications. A KNO scaling study was performed in the pseudorapidity intervals | η| < 0.5, 1.0 and 1.5. The data are compared to other experimental results and to models as implemented in Monte Carlo event generators PHOJET and recent tunes of PYTHIA6, PYTHIA8 and EPOS.
Published: 2017

22. Energy dependence of forward-rapidity [Formula: see text] and [Formula: see text] production in pp 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: ALCE Collaboration, Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We present results on transverse momentum ([Formula: see text]) and rapidity ([Formula: see text]) differential production cross sections, mean transverse momentum and mean transverse momentum square of inclusive [Formula: see text] and [Formula: see text] at forward rapidity ([Formula: see text]) as well as [Formula: see text]-to-[Formula: see text] cross section ratios. These quantities are measured in pp collisions at center of mass energies [Formula: see text] and 13 TeV with the ALICE detector. Both charmonium states are reconstructed in the dimuon decay channel, using the muon spectrometer. A comprehensive comparison to inclusive charmonium cross sections measured at [Formula: see text], 7 and 8 TeV is performed. A comparison to non-relativistic quantum chromodynamics and fixed-order next-to-leading logarithm calculations, which describe prompt and non-prompt charmonium production respectively, is also presented. A good description of the data is obtained over the full [Formula: see text] range, provided that both contributions are summed. In particular, it is found that for [Formula: see text] GeV/c the non-prompt contribution reaches up to 50% of the total charmonium yield.
Published: 2017

23. Production of [Formula: see text] and [Formula: see text] mesons up to high transverse momentum in pp collisions at 2.76 TeV.

Author: Acharya, S, 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, Awes, T, 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: ALICE Collaboration, Nuclear & Particles Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The invariant differential cross sections for inclusive [Formula: see text] and [Formula: see text] mesons at midrapidity were measured in pp collisions at [Formula: see text] TeV for transverse momenta [Formula: see text] GeV/c and [Formula: see text] GeV/c, respectively, using the ALICE detector. This large range in [Formula: see text] was achieved by combining various analysis techniques and different triggers involving the electromagnetic calorimeter (EMCal). In particular, a new single-cluster, shower-shape based method was developed for the identification of high-[Formula: see text] neutral pions, which exploits that the showers originating from their decay photons overlap in the EMCal. Above 4 GeV/[Formula: see text], the measured cross sections are found to exhibit a similar power-law behavior with an exponent of about 6.3. Next-to-leading-order perturbative QCD calculations differ from the measured cross sections by about 30% for the [Formula: see text], and between 30-50% for the [Formula: see text] meson, while generator-level simulations with PYTHIA 8.2 describe the data to better than 10-30%, except at [Formula: see text] GeV/[Formula: see text]. The new data can therefore be used to further improve the theoretical description of [Formula: see text] and [Formula: see text] meson production.
Published: 2017

24. Charged-particle multiplicities in proton–proton collisions at √s=0.9 to 8 TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, GA, Agnello, M, Agrawal, N, Ahammed, Z, Ahmed, I, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, RA, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, CAG, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, AB, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, HB, Bellwied, R, Belmont, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
Subjects: Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: A detailed study of pseudorapidity densities and multiplicity distributions of primary charged particles produced in proton–proton collisions, at s= 0.9, 2.36, 2.76, 7 and 8 TeV, in the pseudorapidity range | η| < 2 , was carried out using the ALICE detector. Measurements were obtained for three event classes: inelastic, non-single diffractive and events with at least one charged particle in the pseudorapidity interval | η| < 1. The use of an improved track-counting algorithm combined with ALICE’s measurements of diffractive processes allows a higher precision compared to our previous publications. A KNO scaling study was performed in the pseudorapidity intervals | η| < 0.5, 1.0 and 1.5. The data are compared to other experimental results and to models as implemented in Monte Carlo event generators PHOJET and recent tunes of PYTHIA6, PYTHIA8 and EPOS.
Published: 2017

25. Measurement of azimuthal correlations of D mesons with charged particles in pp collisions at [Formula: see text] TeV and p-Pb collisions at [Formula: see text] 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, 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, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: ALICE Collaboration, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The azimuthal correlations of D mesons with charged particles were measured with the ALICE apparatus in pp collisions at [Formula: see text] and p-Pb collisions at [Formula: see text] at the Large Hadron Collider. [Formula: see text], [Formula: see text], and [Formula: see text] mesons and their charge conjugates with transverse momentum [Formula: see text] and rapidity in the nucleon-nucleon centre-of-mass system [Formula: see text] (pp collisions) and [Formula: see text] (p-Pb collisions) were correlated to charged particles with [Formula: see text]. The yield of charged particles in the correlation peak induced by the jet containing the D meson and the peak width are compatible within uncertainties in the two collision systems. The data are described within uncertainties by Monte-Carlo simulations based on PYTHIA, POWHEG, and EPOS 3 event generators.
Published: 2017

26. Production of [Formula: see text] and [Formula: see text] in p-Pb collisions at [Formula: see text] TeV.

Author: 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, Bielčíková, J, and Bilandzic, A
Subjects: ALICE Collaboration, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The transverse momentum distributions of the strange and double-strange hyperon resonances ([Formula: see text], [Formula: see text]) produced in p-Pb collisions at [Formula: see text] TeV were measured in the rapidity range [Formula: see text] for event classes corresponding to different charged-particle multiplicity densities, [Formula: see text]d[Formula: see text]/d[Formula: see text]. The mean transverse momentum values are presented as a function of [Formula: see text]d[Formula: see text]/d[Formula: see text], as well as a function of the particle masses and compared with previous results on hyperon production. The integrated yield ratios of excited to ground-state hyperons are constant as a function of [Formula: see text]d[Formula: see text]/d[Formula: see text]. The equivalent ratios to pions exhibit an increase with [Formula: see text]d[Formula: see text]/d[Formula: see text], depending on their strangeness content.
Published: 2017

27. Jet-like correlations with neutral pion triggers in pp and central Pb–Pb collisions at 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, 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, Bielčík, J, and Bielčíková, J
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: We present measurements of two-particle correlations with neutral pion trigger particles of transverse momenta 8>pTtrig>16 GeV/c and associated charged particles of 0.5>pTassoc>10 GeV/c versus the azimuthal angle difference Δφ at midrapidity in pp and central Pb–Pb collisions at sNN=2.76 TeV with ALICE. The new measurements exploit associated charged hadrons down to 0.5 GeV/c, which significantly extends our previous measurement that only used charged hadrons above 3 GeV/c. After subtracting the contributions of the flow background, v2 to v5, the per-trigger yields are extracted for |Δφ|>0.7 on the near and for |Δφ−π|>1.1 on the away side. The ratio of per-trigger yields in Pb–Pb to those in pp collisions, IAA, is measured on the near and away side for the 0–10% most central Pb–Pb collisions. On the away side, the per-trigger yields in Pb–Pb are strongly suppressed to the level of IAA≈0.6 for pTassoc
Published: 2016

28. Pseudorapidity dependence of the anisotropic flow of charged particles 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, 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, 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: We present measurements of the elliptic (v2), triangular (v3) and quadrangular (v4) anisotropic azimuthal flow over a wide range of pseudorapidities (−3.5
Published: 2016

29. Multiplicity dependence of charged pion, kaon, and (anti)proton production at large transverse momentum in p–Pb collisions at √sNN=5.02 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, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, R, Belmont-Moreno, E, Belyaev, V, Benacek, P, 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, 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 charged pions, kaons and (anti)protons has been measured at mid-rapidity (−0.510 GeV/c), the particle ratios are consistent with those reported for pp and Pb–Pb collisions at the LHC energies. At intermediate pT the (anti)proton RpPb shows a Cronin-like enhancement, while pions and kaons show little or no nuclear modification. At high pT the charged pion, kaon and (anti)proton RpPb are consistent with unity within statistical and systematic uncertainties.
Published: 2016

30. Higher harmonic flow coefficients of identified hadrons in 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, 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, 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, Hadron-Hadron scattering, 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 elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for π±, K± and p + p ¯ in Pb-Pb collisions at sNN=2.76 TeV were measured with the ALICE detector at the Large Hadron Collider. The results were obtained with the Scalar Product method, correlating the identified hadrons with reference particles from a different pseudorapidity region. Effects not related to the common event symmetry planes (non-flow) were estimated using correlations in pp collisions and were subtracted from the measurement. The obtained flow coefficients exhibit a clear mass ordering for transverse momentum (pT) values below ≈ 3 GeV/c. In the intermediate pT region (3 < pT< 6 GeV/c), particles group at an approximate level according to the number of constituent quarks, suggesting that coalescence might be the relevant particle production mechanism in this region. The results for pT< 3 GeV/c are described fairly well by a hydrodynamical model (iEBE-VISHNU) that uses initial conditions generated by A Multi-Phase Transport model (AMPT) and describes the expansion of the fireball using a value of 0.08 for the ratio of shear viscosity to entropy density (η/s), coupled to a hadronic cascade model (UrQMD). Finally, expectations from AMPT alone fail to quantitatively describe the measurements for all harmonics throughout the measured transverse momentum region. However, the comparison to the AMPT model highlights the importance of the late hadronic rescattering stage to the development of the observed mass ordering at low values of pT and of coalescence as a particle production mechanism for the particle type grouping at intermediate values of pT for all harmonics.[Figure not available: see fulltext.]
Published: 2016

31. Higher harmonic flow coefficients of identified hadrons 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, 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, 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, Bielčík, J, and Bielčíková, J
Subjects: Hadron-Hadron scattering, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The elliptic, triangular, quadrangular and pentagonal anisotropic flow coefficients for π±, K± and p + p ¯ in Pb-Pb collisions at sNN=2.76 TeV were measured with the ALICE detector at the Large Hadron Collider. The results were obtained with the Scalar Product method, correlating the identified hadrons with reference particles from a different pseudorapidity region. Effects not related to the common event symmetry planes (non-flow) were estimated using correlations in pp collisions and were subtracted from the measurement. The obtained flow coefficients exhibit a clear mass ordering for transverse momentum (pT) values below ≈ 3 GeV/c. In the intermediate pT region (3 < pT< 6 GeV/c), particles group at an approximate level according to the number of constituent quarks, suggesting that coalescence might be the relevant particle production mechanism in this region. The results for pT< 3 GeV/c are described fairly well by a hydrodynamical model (iEBE-VISHNU) that uses initial conditions generated by A Multi-Phase Transport model (AMPT) and describes the expansion of the fireball using a value of 0.08 for the ratio of shear viscosity to entropy density (η/s), coupled to a hadronic cascade model (UrQMD). Finally, expectations from AMPT alone fail to quantitatively describe the measurements for all harmonics throughout the measured transverse momentum region. However, the comparison to the AMPT model highlights the importance of the late hadronic rescattering stage to the development of the observed mass ordering at low values of pT and of coalescence as a particle production mechanism for the particle type grouping at intermediate values of pT for all harmonics.[Figure not available: see fulltext.]
Published: 2016

32. Multiplicity dependence of charged pion, kaon, and (anti)proton production at large transverse momentum in p–Pb collisions at sNN=5.02 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, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, 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, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Benacek, P, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G
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: The production of charged pions, kaons and (anti)protons has been measured at mid-rapidity (−0.510 GeV/c), the particle ratios are consistent with those reported for pp and Pb–Pb collisions at the LHC energies. At intermediate pT the (anti)proton RpPb shows a Cronin-like enhancement, while pions and kaons show little or no nuclear modification. At high pT the charged pion, kaon and (anti)proton RpPb are consistent with unity within statistical and systematic uncertainties.
Published: 2016

33. Multi-strange baryon production in p-Pb collisions at √sNN=5.02 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, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, R, Belmont-Moreno, E, Belyaev, V, Benacek, P, 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, 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 multi-strange baryon yields in Pb-Pb collisions have been shown to exhibit an enhancement relative to pp reactions. In this work, Ξ and Ω production rates have been measured with the ALICE experiment as a function of transverse momentum, pT, in p-Pb collisions at a centre-of-mass energy of sNN=5.02 TeV. The results cover the kinematic ranges 0.6 GeV/c
Published: 2016

34. Multi-strange baryon production in pPb collisions at sNN=5.02 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, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, Camejo, A Batista, Batyunya, B, Batzing, PC, Bearden, IG, Beck, H, Bedda, C, Behera, NK, Belikov, I, Bellini, F, Martinez, H Bello, Bellwied, R, Belmont, R, Belmont-Moreno, E, Belyaev, V, Benacek, P, 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, 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: The multi-strange baryon yields in Pb-Pb collisions have been shown to exhibit an enhancement relative to pp reactions. In this work, Ξ and Ω production rates have been measured with the ALICE experiment as a function of transverse momentum, pT, in p-Pb collisions at a centre-of-mass energy of sNN=5.02 TeV. The results cover the kinematic ranges 0.6 GeV/c
Published: 2016

35. Centrality dependence of ψ(2S) suppression in p-Pb collisions at sNN=5.02 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Heavy Ion Experiments, Quark Gluon Plasma, 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 inclusive production of the ψ(2S) charmonium state was studied as a function of centrality in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed with the ALICE detector in the center of mass rapidity ranges −4.46 < ycms< −2.96 and 2.03 < ycms< 3.53, down to zero transverse momentum, by reconstructing the ψ(2S) decay to a muon pair. The ψ(2S) production cross section σψ(2S) is presented as a function of the collision centrality, which is estimated through the energy deposited in forward rapidity calorimeters. The relative strength of nuclear effects on the ψ(2S) and on the corresponding 1S charmonium state J/ψ is then studied by means of the double ratio of cross sections [σψ(2S)/σJ/ψ]pPb/[σψ(2S)/σJ/ψ]pp between p-Pb and pp collisions, and by the values of the nuclear modification factors for the two charmonium states. The results show a large suppression of ψ(2S) production relative to the J/ψ at backward (negative) rapidity, corresponding to the flight direction of the Pb-nucleus, while at forward (positive) rapidity the suppressions of the two states are comparable. Finally, comparisons to results from lower energy experiments and to available theoretical models are presented.
Published: 2016

36. Centrality dependence of ψ(2S) suppression in p-Pb collisions at √sNN= 5.02 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G
Subjects: Heavy Ion Experiments, Quark Gluon Plasma, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The inclusive production of the ψ(2S) charmonium state was studied as a function of centrality in p-Pb collisions at the nucleon-nucleon center of mass energy √sNN = 5.02 TeV at the CERN LHC. The measurement was performed with the ALICE detector in the center of mass rapidity ranges −4.46 < ycms< −2.96 and 2.03 < ycms< 3.53, down to zero transverse momentum, by reconstructing the ψ(2S) decay to a muon pair. The ψ(2S) production cross section σψ(2S) is presented as a function of the collision centrality, which is estimated through the energy deposited in forward rapidity calorimeters. The relative strength of nuclear effects on the ψ(2S) and on the corresponding 1S charmonium state J/ψ is then studied by means of the double ratio of cross sections [σψ(2S)/σJ/ψ]pPb/[σψ(2S)/σJ/ψ]pp between p-Pb and pp collisions, and by the values of the nuclear modification factors for the two charmonium states. The results show a large suppression of ψ(2S) production relative to the J/ψ at backward (negative) rapidity, corresponding to the flight direction of the Pb-nucleus, while at forward (positive) rapidity the suppressions of the two states are comparable. Finally, comparisons to results from lower energy experiments and to available theoretical models are presented.
Published: 2016

37. Centrality dependence of charged jet production in p–Pb collisions at sNN = 5.02 TeV

Author: 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, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, and Bilandzic, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Alice Collaboration, 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: Measurements of charged jet production as a function of centrality are presented for p-Pb collisions recorded at [Formula: see text] TeV with the ALICE detector. Centrality classes are determined via the energy deposit in neutron calorimeters at zero degree, close to the beam direction, to minimise dynamical biases of the selection. The corresponding number of participants or binary nucleon-nucleon collisions is determined based on the particle production in the Pb-going rapidity region. Jets have been reconstructed in the central rapidity region from charged particles with the anti-[Formula: see text] algorithm for resolution parameters [Formula: see text] and [Formula: see text] in the transverse momentum range 20 to 120 GeV/c. The reconstructed jet momentum and yields have been corrected for detector effects and underlying-event background. In the five centrality bins considered, the charged jet production in p-Pb collisions is consistent with the production expected from binary scaling from pp collisions. The ratio of jet yields reconstructed with the two different resolution parameters is also independent of the centrality selection, demonstrating the absence of major modifications of the radial jet structure in the reported centrality classes.
Published: 2016

38. Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in 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, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, 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, R, Belmont-Moreno, E, 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, Quark gluon plasma, 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 J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (pt) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average pt is presented. The J/ψ suppression, quantified with the nuclear modification factor (RAA), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.
Published: 2016

39. Production of K∗(892)0 and ϕ(1020) in p–Pb collisions at sNN = 5.02 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, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, 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, R, Belmont-Moreno, E, Belyaev, V, Benacek, P, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, and Biro, G
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, 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 of K[Formula: see text](892)[Formula: see text] and [Formula: see text](1020) mesons has been measured in p-Pb collisions at [Formula: see text][Formula: see text] 5.02 TeV. K[Formula: see text] and [Formula: see text] are reconstructed via their decay into charged hadrons with the ALICE detector in the rapidity range [Formula: see text]. The transverse momentum spectra, measured as a function of the multiplicity, have a p[Formula: see text] range from 0 to 15 GeV/c for K[Formula: see text] and from 0.3 to 21 GeV/c for [Formula: see text]. Integrated yields, mean transverse momenta and particle ratios are reported and compared with results in pp collisions at [Formula: see text][Formula: see text] 7 TeV and Pb-Pb collisions at [Formula: see text][Formula: see text] 2.76 TeV. In Pb-Pb and p-Pb collisions, K[Formula: see text] and [Formula: see text] probe the hadronic phase of the system and contribute to the study of particle formation mechanisms by comparison with other identified hadrons. For this purpose, the mean transverse momenta and the differential proton-to-[Formula: see text] ratio are discussed as a function of the multiplicity of the event. The short-lived K[Formula: see text] is measured to investigate re-scattering effects, believed to be related to the size of the system and to the lifetime of the hadronic phase.
Published: 2016

40. Differential studies of inclusive J/ψ and ψ(2S) production at forward rapidity in 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, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, 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, R, Belmont-Moreno, E, 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, Quark gluon plasma, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The production of J/ψ and ψ(2S) was studied with the ALICE detector in Pb-Pb collisions at the LHC. The measurement was performed at forward rapidity (2.5 < y < 4) down to zero transverse momentum (pt) in the dimuon decay channel. Inclusive J/ψ yields were extracted in different centrality classes and the centrality dependence of the average pt is presented. The J/ψ suppression, quantified with the nuclear modification factor (RAA), was measured as a function of centrality, transverse momentum and rapidity. Comparisons with similar measurements at lower collision energy and theoretical models indicate that the J/ψ production is the result of an interplay between color screening and recombination mechanisms in a deconfined partonic medium, or at its hadronization. Results on the ψ(2S) suppression are provided via the ratio of ψ(2S) over J/ψ measured in pp and Pb-Pb collisions.
Published: 2016

41. Inclusive quarkonium production at forward rapidity in pp collisions at s=8TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, Biswas, S, and Bjelogrlic, S
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, ALICE Collaboration, 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: We report on the inclusive production cross sections of [Formula: see text], [Formula: see text], [Formula: see text](1S), [Formula: see text](2S) and [Formula: see text](3S), measured at forward rapidity with the ALICE detector in [Formula: see text] collisions at a center-of-mass energy [Formula: see text] TeV. The analysis is based on data collected at the LHC and corresponds to an integrated luminosity of 1.23 pb[Formula: see text]. Quarkonia are reconstructed in the dimuon-decay channel. The differential production cross sections are measured as a function of the transverse momentum [Formula: see text] and rapidity y, over the [Formula: see text] ranges [Formula: see text] GeV/c for [Formula: see text], [Formula: see text] GeV/c for all other resonances, and for [Formula: see text]. The cross sections, integrated over [Formula: see text] and y, and assuming unpolarized quarkonia, are [Formula: see text] [Formula: see text]b, [Formula: see text] [Formula: see text]b, [Formula: see text] nb, [Formula: see text] nb and [Formula: see text] nb, where the first uncertainty is statistical and the second one is systematic. These values agree, within at most [Formula: see text], with measurements performed by the LHCb collaboration in the same rapidity range.
Published: 2016

42. Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range 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, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The centrality dependence of the charged-particle pseudorapidity density measured with ALICE in Pb-Pb collisions at √sNN=2.76 TeV over a broad pseudorapidity range is presented. This Letter extends the previous results reported by ALICE to more peripheral collisions. No strong change of the overall shape of charged-particle pseudorapidity density distributions with centrality is observed, and when normalised to the number of participating nucleons in the collisions, the evolution over pseudorapidity with centrality is likewise small. The broad pseudorapidity range (-3.5
Published: 2016

43. Measurement of electrons from heavy-flavour hadron decays in p–Pb collisions at √sNN=5.02TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Aglieri Rinella, G, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, Biswas, S, and Bjelogrlic, S
Subjects: Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum (pT) in minimum-bias p–Pb collisions at sNN=5.02 TeV using the ALICE detector at the LHC. The measurement covers the pT interval 0.5
Published: 2016

44. 3ΛH and 3ΛH production 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, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, 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, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Baltasar Dos Santos Pedrosa, F, 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, R, Belmont-Moreno, E, 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, 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 the hypertriton nuclei HΛ3 and H[U+203E]Λ-3 has been measured for the first time in Pb-Pb collisions at sNN=2.76 TeV with the ALICE experiment at LHC. The pT-integrated HΛ3 yield in one unity of rapidity, dN/dy×B.R.(HΛ3→He3,π-)=(3.86±0.77(stat.)±0.68(syst.))×10-in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3=HΛ3/(He3×Λ/p) was measured to be S3=0.60±0.13(stat.)±0.21(syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is compatible with thermal model predictions. The measured HΛ3 lifetime, τ=181-39+54(stat.)±33(syst.)ps is in agreement within 1σ with the world average value.
Published: 2016

45. Measurement of electrons from heavy-flavour hadron decays in p–Pb collisions at sNN=5.02TeV

Author: Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, Belmont, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, Biswas, S, and Bjelogrlic, S
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: The production of electrons from heavy-flavour hadron decays was measured as a function of transverse momentum (pT) in minimum-bias p–Pb collisions at sNN=5.02 TeV using the ALICE detector at the LHC. The measurement covers the pT interval 0.5
Published: 2016

46. Centrality evolution of the charged-particle pseudorapidity density over a broad pseudorapidity range 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, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Molina, R Alfaro, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Prado, C Alves Garcia, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, Belmont, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, Biswas, S, and Bjelogrlic, S
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: The centrality dependence of the charged-particle pseudorapidity density measured with ALICE in Pb-Pb collisions at √sNN=2.76 TeV over a broad pseudorapidity range is presented. This Letter extends the previous results reported by ALICE to more peripheral collisions. No strong change of the overall shape of charged-particle pseudorapidity density distributions with centrality is observed, and when normalised to the number of participating nucleons in the collisions, the evolution over pseudorapidity with centrality is likewise small. The broad pseudorapidity range (-3.5
Published: 2016

47. HΛ3 and H‾Λ¯3 production in Pb–Pb collisions at sNN=2.76 TeV

Author: Collaboration, ALICE, Adam, J, Adamová, D, Aggarwal, MM, Rinella, G Aglieri, Agnello, M, Agrawal, N, Ahammed, Z, Ahn, SU, Aimo, I, Aiola, S, Ajaz, M, Akindinov, A, Alam, SN, 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, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, Antičić, T, Antinori, F, Antonioli, P, Aphecetche, L, Appelshäuser, H, Arcelli, S, Armesto, N, Arnaldi, R, Arsene, IC, Arslandok, M, Audurier, B, Augustinus, A, Averbeck, R, Azmi, MD, Bach, M, Badalà, A, Baek, YW, Bagnasco, S, Bailhache, R, Bala, R, Baldisseri, A, Dos Santos Pedrosa, F Baltasar, 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, Belmont, R, Belmont-Moreno, E, 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, Bielčík, J, and Bielčíková, 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: The production of the hypertriton nuclei HΛ3 and H[U+203E]Λ-3 has been measured for the first time in Pb-Pb collisions at sNN=2.76 TeV with the ALICE experiment at LHC. The pT-integrated HΛ3 yield in one unity of rapidity, dN/dy×B.R.(HΛ3→He3,π-)=(3.86±0.77(stat.)±0.68(syst.))×10-in the 0-10% most central collisions, is consistent with the predictions from a statistical thermal model using the same temperature as for the light hadrons. The coalescence parameter B3 shows a dependence on the transverse momentum, similar to the B2 of deuterons and the B3 of 3He nuclei. The ratio of yields S3=HΛ3/(He3×Λ/p) was measured to be S3=0.60±0.13(stat.)±0.21(syst.) in 0-10% centrality events; this value is compared to different theoretical models. The measured S3 is compatible with thermal model predictions. The measured HΛ3 lifetime, τ=181-39+54(stat.)±33(syst.)ps is in agreement within 1σ with the world average value.
Published: 2016

48. Measurement of Ds+ production and nuclear modification factor in 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, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Hadron-Hadron scattering, Heavy ion Experiments, Quark gluon plasma, 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 prompt Ds+ mesons was measured for the first time in collisions of heavy nuclei with the ALICE detector at the LHC. The analysis was performed on a data sample of Pb-Pb collisions at a centre-of-mass energy per nucleon pair, (Formula presented.) , of 2.76 TeV in two different centrality classes, namely 0–10% and 20–50%. Ds+ mesons and their antiparticles were reconstructed at mid-rapidity from their hadronic decay channel Ds+ → ϕπ+, with ϕ → K−K+, in the transverse momentum intervals 4 < pT < 12GeV/c and 6 < pT < 12 GeV/c for the 0–10% and 20–50% centrality classes, respectively. The nuclear modification factor RAA was computed by comparing the pT-differential production yields in Pb-Pb collisions to those in proton-proton (pp) collisions at the same energy. This pp reference was obtained using the cross section measured at (Formula presented.) TeV and scaled to (Formula presented.) TeV. The RAA of Ds+ mesons was compared to that of non-strange D mesons in the 10% most central Pb-Pb collisions. At high pT (8 < pT < 12 GeV/c) a suppression of the Ds+-meson yield by a factor of about three, compatible within uncertainties with that of non-strange D mesons, is observed. At lower pT (4 < pT < 8 GeV/c) the values of the Ds+-meson RAA are larger than those of non-strange D mesons, although compatible within uncertainties. The production ratios Ds+/D0 and Ds+/D+ were also measured in Pb-Pb collisions and compared to their values in proton-proton collisions.
Published: 2016

49. Transverse momentum dependence of D-meson production in 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, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, Heavy ion Experiments, Quark gluon plasma, Charm physics, 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 prompt charmed mesons D0, D+ and D∗+, and their antiparticles, was measured with the ALICE detector in Pb-Pb collisions at the centre-of-mass energy per nucleon pair, (Formula presented.) , of 2.76 TeV. The production yields for rapidity |y| < 0.5 are presented as a function of transverse momentum, pT, in the interval 1–36 GeV/c for the centrality class 0–10% and in the interval 1–16 GeV/c for the centrality class 30–50%. The nuclear modification factor RAA was computed using a proton-proton reference at (Formula presented.) TeV, based on measurements at (Formula presented.) TeV and on theoretical calculations. A maximum suppression by a factor of 5-6 with respect to binary-scaled pp yields is observed for the most central collisions at pT of about 10 GeV/c. A suppression by a factor of about 2-3 persists at the highest pT covered by the measurements. At low pT (1-3 GeV/c), the RAA has large uncertainties that span the range 0.35 (factor of about 3 suppression) to 1 (no suppression). In all pT intervals, the RAA is larger in the 30-50% centrality class compared to central collisions. The D-meson RAA is also compared with that of charged pions and, at large pT, charged hadrons, and with model calculations.
Published: 2016

50. Measurement of Ds+ production and nuclear modification factor in 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, Ahn, SU, Aiola, S, Akindinov, A, Alam, SN, Aleksandrov, D, Alessandro, B, Alexandre, D, Alfaro Molina, R, Alici, A, Alkin, A, Almaraz, JRM, Alme, J, Alt, T, Altinpinar, S, Altsybeev, I, Alves Garcia Prado, C, Andrei, C, Andronic, A, Anguelov, V, Anielski, J, 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, 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, R, Belmont-Moreno, E, 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, Bielčík, J, Bielčíková, J, Bilandzic, A, Biswas, R, and Biswas, S
Subjects: Hadron-Hadron scattering, Heavy ion Experiments, Quark gluon plasma, Nuclear & Particles Physics, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The production of prompt Ds+ mesons was measured for the first time in collisions of heavy nuclei with the ALICE detector at the LHC. The analysis was performed on a data sample of Pb-Pb collisions at a centre-of-mass energy per nucleon pair, (Formula presented.) , of 2.76 TeV in two different centrality classes, namely 0–10% and 20–50%. Ds+ mesons and their antiparticles were reconstructed at mid-rapidity from their hadronic decay channel Ds+ → ϕπ+, with ϕ → K−K+, in the transverse momentum intervals 4 < pT < 12GeV/c and 6 < pT < 12 GeV/c for the 0–10% and 20–50% centrality classes, respectively. The nuclear modification factor RAA was computed by comparing the pT-differential production yields in Pb-Pb collisions to those in proton-proton (pp) collisions at the same energy. This pp reference was obtained using the cross section measured at (Formula presented.) TeV and scaled to (Formula presented.) TeV. The RAA of Ds+ mesons was compared to that of non-strange D mesons in the 10% most central Pb-Pb collisions. At high pT (8 < pT < 12 GeV/c) a suppression of the Ds+-meson yield by a factor of about three, compatible within uncertainties with that of non-strange D mesons, is observed. At lower pT (4 < pT < 8 GeV/c) the values of the Ds+-meson RAA are larger than those of non-strange D mesons, although compatible within uncertainties. The production ratios Ds+/D0 and Ds+/D+ were also measured in Pb-Pb collisions and compared to their values in proton-proton collisions.
Published: 2016

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