Charged jet cross sections and properties in proton-proton collisions at s = 7 TeV

The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in minimum bias proton-proton collisions at center-of-mass energy [radical]s = 7 TeV using the ALICE detector at the LHC. Jets are reconstructed from charged particle momenta in the midrapidity...

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Veröffentlicht in:	Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2015-06, Vol.91 (11), Article 112012
Hauptverfasser:	Abelev, B., Adam, J., Adamová, D., Aggarwal, M. M., Aglieri Rinella, G., Agnello, M., Agostinelli, A., Agrawal, N., Ahammed, Z., Ahmad, N., Ahmed, I., Ahn, S. U., Ahn, S. A., Aimo, I., Aiola, S., Ajaz, M., Akindinov, A., Alam, S. N., Aleksandrov, D., Alessandro, B., Alexandre, D., 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., Aronsson, T., Arsene, I. C., Arslandok, M., Augustinus, A., Averbeck, R., Awes, T. C., Azmi, M. D., Bach, M., Badalà, A., Baek, Y. W., Bagnasco, S., Bailhache, R., Bala, R., Baldisseri, A., Baltasar Dos Santos Pedrosa, F., Baral, R. C., Barbera, R., Barile, F., Barnaföldi, G. G., Barnby, L. S., Barret, V., Bartke, J., Basile, M., Bastid, N., Basu, S., Bathen, B., Batigne, G., Batista Camejo, A., Batyunya, B., Batzing, P. C., Baumann, C., Bearden, I. G., Beck, H., Bedda, C., Behera, N. K., Belikov, I., Bellini, F., Bellwied, R., Belmont-Moreno, E., Belmont, R., Belyaev, V., Bencedi, G., Beole, S., Berceanu, I., Bercuci, A., Berdnikov, Y., Berenyi, D., Berger, M. E., Bertens, R. A., Berzano, D., Betev, L., Bhasin, A., Bhat, I. R., Bhati, A. K., Bhattacharjee, B., Bhom, J., Bianchi, L., Bianchi, N., Bianchin, C., Bielčík, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Charged particles Charging Collisions Cross sections Density distribution Detectors Fragmentation Mathematical models PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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Zusammenfassung:	The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in minimum bias proton-proton collisions at center-of-mass energy [radical]s = 7 TeV using the ALICE detector at the LHC. Jets are reconstructed from charged particle momenta in the midrapidity region using the sequential recombination k sub(T) and anti-k sub(T) as well as the SISCone jet finding algorithms with several resolution parameters in the range R = 0.2-0.6. Differential jet production cross sections measured with the three jet finders are in agreement in the transverse momentum (p sub(T)) interval 20 < (ProQuest: Formulae and/or non-USASCII text omitted) < 100 GeV /c They are also consistent with prior measurements carried out at the LHC by the ATLAS Collaboration. The jet charged particle multiplicity rises monotonically with increasing jet p sub(T), in qualitative agreement with prior observations at lower energies. The transverse profiles of leading jets are investigated using radial momentum density distributions as well as distributions of the average radius containing 80% (
ISSN:	1550-7998 1550-2368
DOI:	10.1103/PhysRevD.91.112012