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Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$ and 13 TeV

descriptionPublicationkeyboard_double_arrow_right Article , Preprint , Journal 01 Oct 2019Embargo end date: 01 Jan 2019 Croatia, Germany, Finland, Croatia, Norway, Italy, Finland, Italy, France, Denmark, Italy, Croatia, Italy, Norway, Norway, Italy, Czech Republic, Italy, Croatia, United Kingdom, Italy, Italy, Germany, Italy, Italy, Italy, Italy, Netherlands, Czech Republic, Italy, Italy, Hungary, United States, Italy, Italy, Croatia, Greece, Croatia, Norway, Hungary, Netherlands, Norway, Germany, United Kingdom, Germany, Italy Publisher:Springer Science and Business Media LLCJournal:The European Physical Journal C, volume 79 (issn: 1434-6044, eissn: 1434-6052,

Authors: Acharya, S.; Acosta, F.T.; Adam, J.; Adamova, D.; Adler, A.; and Adolfsson, J.; Aggarwal, M.M.; +193 Authors

Acharya, S.; Acosta, F.T.; Adam, J.; Adamova, D.; Adler, A.; and Adolfsson, J.; Aggarwal, M.M.; Rinella, G.; Aglieri and; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahn, S.U.; Aiola, S.; and Akindinov, A.; Al-Turany, M.; Alam, S.N.; Albuquerque, D.; S.D.; Aleksandrov, D.; Alessandro, B.; Alfanda, H.M.; and; Alfaro Molina, R.; Ali, Y.; Alici, A.; Alkin, A.; Alme, J.; and Alt, T.; Altenkamper, L.; Altsybeev, I.; Anaam, M.N.; Andrei, C.; Andreou, D.; Andrews, H.A.; Andronic, A.; Angeletti, M.; Anguelov, V.; Anson, C.; Anticic, T.; Antinori, F.; Antonioli, P.; Anwar, R.; Apadula, N.; Aphecetche, L.; Appelshaeuser, H.; Arcelli, S.; Arnaldi, R.; Arratia, M.; Arsene, I.C.; Arslandok, M.; Augustinus, A.; Averbeck, R.; Azmi, M.D.; Badala, A.; Baek, Y.W.; Bagnasco, S.; Bailhache, R.; Bala, R.; Baldisseri, A.; Ball,; M.; Baral, R.C.; Barbano, A.M.; Barbera, R.; Barile, F.; and Barioglio, L.; Barnafoeldi, G.G.; Barnby, L.S.; Barret,; V.; Bartalini, P.; Barth, K.; Bartsch, E.; Bastid, N.; Basu, S.; Batigne, G.; Batyunya, B.; Batzing, P.C.; Bazo; Alba, J.L.; Bearden, I.G.; Beck, H.; Bedda, C.; Behera, N.; K.; Belikov, I.; Bellini, F.; Bello Martinez, H.; Bellwied,; R.; Beltran, L.G.; E.; Belyaev, V.; Bencedi, G.; Beole, S.; and Bercuci, A.; Berdnikov, Y.; Berenyi, D.; Bertens, R.A.; Berzano, D.; Betev, L.; Bhaduri, P.P.; Bhasin, A.; Bhat, I.; Bhatt, H.; Bhattacharjee, B.; Bhom, J.; Bianchi, A.; Bianchi, L.; Bianchi, N.; Bielcik, J.; Bielcikova, J.; Bilandzic, A.; Biro, G.; Biswas, R.; Biswas, S.; Blair, J.; T.; Blau, D.; Blume, C.; Boca, G.; Bock, F.; Bogdanov, A.; and Boldizsar, L.; Bolozdynya, A.; Bombara, M.; Bonomi, G.; Bonora, M.; Borel, H.; Borissov, A.; Borri, M.; Botta, E.; and Bourjau, C.; Bratrud, L.; Braun-Munzinger, P.; Bregant, M.; and Broker, T.A.; Broz, M.; Brucken, E.J.; Bruna, E.; Bruno, G.E.; Budnikov, D.; Buesching, H.; Bufalino, S.; Buhler, P.; Buncic, P.; Busch, O.; Buthelezi, Z.; Butt, J.; B.; Buxton, J.T.; Cabala, J.; Caffarri, D.; Caines, H.; Caliva, A.; Calvo Villar, E.; Camacho, R.S.; Camerini, P.; Capon, A.A.; Carena, W.; Carnesecchi, F.; Castellanos, J.; Castillo; Castro, A.J.; Casula, E.A.; Ceballos Sanchez, C.; and Chandra, S.; Chang, B.; Chang, W.; Chapeland, S.; Chartier, M.; Chattopadhyay, S.; Chauvin, A.; and Cheshkov, C.; Cheynis, B.; Barroso, V.; Chibante and; Chinellato, D.D.; Cho, S.; Chochula, P.; Chowdhury, T.; Christakoglou, P.; Christensen, C.H.; Christiansen, P.; Chujo,; Chung, S.U.; Cicalo, C.; Cifarelli, L.; Cindolo, F.; Cleymans, J.; Colamaria, F.; Colella, D.; Collu, A.; Colocci, M.; Concas, M.; Balbastre, G.; Conesa; del Valle, Z.; Contreras, J.G.;

doi: 10.1140/epjc/s10052-019-7350-y , 10.48550/arxiv.1905.07208

arXiv: http://arxiv.org/abs/1905.07208 , 1905.07208

handle: 11368/2954131 , 10852/76778 , 11250/2641094 , 11583/2848035 , 11577/3340742 , 11379/526069 , 11386/4741081 , 11573/1656760 , 11584/297117 , 11589/206836 , 11585/727485 , 11250/2643840 , 20.500.11769/372474 , 2318/1729909 , 1956/22359 , 11579/106575 , 11369/426640 , 11586/263223 , 11571/1296767 , 10900/103521

Charged-particle production as a function of multiplicity and transverse spherocity in pp collisions at $$ \sqrt{\mathbf{s}} =\mathbf{5.02}$$ and 13 TeV

- Summary
- Subjects

Abstract

Abstract We present a study of the inclusive charged-particle transverse momentum ($$p_{\mathrm{T}}$$pT) spectra as a function of charged-particle multiplicity density at mid-pseudorapidity, $$\mathrm{d}N_{\mathrm{ch}}/\mathrm{d}\eta $$dNch/dη, in pp collisions at $$\sqrt{s}=5.02$$s=5.02 and 13 TeV covering the kinematic range $$|\eta |<0.8$$|η|<0.8 and $$0.15<p_{\mathrm{T}} <20$$0.15<pT<20 GeV/c. The results are presented for events with at least one charged particle in $$|\eta |<1$$|η|<1 (INEL$$\,>0$$>0). The $$p_\mathrm{T}$$pT spectra are reported for two multiplicity estimators covering different pseudorapidity regions. The $$p_{\mathrm{T}}$$pT spectra normalized to that for INEL$$\,>0$$>0 show little energy dependence. Moreover, the high-$$p_{\mathrm{T}}$$pT yields of charged particles increase faster than the charged-particle multiplicity density. The average $${ p}_{\mathrm{T}}$$pT as a function of multiplicity and transverse spherocity is reported for pp collisions at $$\sqrt{s}=13$$s=13 TeV. For low- (high-) spherocity events, corresponding to jet-like (isotropic) events, the average $$p_\mathrm{T}$$pT is higher (smaller) than that measured in INEL$$\,>0$$>0 pp collisions. Within uncertainties, the functional form of $$\langle p_{\mathrm{T}} \rangle (N_{\mathrm{ch}})$$⟨pT⟩(Nch) is not affected by the spherocity selection. While EPOS LHC gives a good description of many features of data, PYTHIA overestimates the average $$p_{\mathrm{T}}$$pT in jet-like events.

Countries

Croatia, Germany, Finland, Croatia, Norway, Italy, Finland, Italy, France, Denmark, Italy, Croatia, Italy, Norway, Norway, Italy, Czech Republic, Italy, Croatia, United Kingdom, Italy, Italy, Germany, Italy, Italy, Italy, Italy, Netherlands, Czech Republic, Italy, Italy, Hungary, United States, Italy, Italy, Croatia, Greece, Croatia, Norway, Hungary, Netherlands, Norway, Germany, United Kingdom, Germany, Italy

Related Organizations

French National Centre for Scientific Research
France
Netherlands Organisation for Applied Scientific Research
Netherlands
Universidade Federal do ABC
Brazil
The University of Texas at Austin
United States
Institute of Physics
Czech Republic

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Keywords

Fysiikka, Physics and Astronomy (miscellaneous), experimental physics, momentum spectrum [transverse momentum], hiukkasfysiikka, pp, Atomic, hadron-hadron scattering, particle production, event shape, heavy ion experiments, transverse momentum: momentum spectrum, High Energy Physics - Experiment, production [charged particle], High Energy Physics - Experiment (hep-ex), Particle and Plasma Physics, ALICE, 5020 GeV-cms/nucleon 13000 GeV-cms/nucleon, scattering [p p], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], multiplicity, Nuclear Experiment (nucl-ex), Heavy Ion, info:eu-repo/classification/ddc/530, Nuclear Experiment, Quantum Physics, rapidity: difference, Ydin- ja kiihdytinfysiikan huippuyksikkö, Physics, ddc:530, momentum transfer, VDP::Kjerne- og elementærpartikkelfysikk: 431, Particle and High Energy Physics, multiplicity: dependence, inclusive charged particle transverse momentum, Nuclear and Plasma Physics, Nuclear & Particles Physics, Charged-particle production ; multiplicity ; transverse spherocity ; pp, :Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431 [VDP], PRIRODNE ZNANOSTI. Fizika., difference [rapidity], CERN LHC Coll, Q1 Science (General) / természettudomány általában, Particle and high energy physics, VDP::Nuclear and elementary particle physics: 431, Physical Sciences, PYTHIA, yield [charged particle], LHC, ALICE collaboration, pp collisions, charged particle: yield, p p: scattering, [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.NEXP] Physics [physics]/Nuclear Experiment [nucl-ex], VDP::Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431, particle production, FOS: Physical sciences, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Centre of Excellence in Nuclear and Accelerator Based Physics, 530, energy dependence, charged particle: multiplicity, multiplicity [charged particle], ALICE; LHC; pp collisions, Nuclear, molecular and optical physics, Engineering (miscellaneous), Charged-particle production, VDP::Mathematics and natural scienses: 400::Physics: 430::Nuclear and elementary particle physics: 431, ta114, Heavy Ion Physics, :Matematikk og naturvitenskap: 400::Fysikk: 430::Kjerne- og elementærpartikkelfysikk: 431 [VDP], 500, Molecular, PROTON-PROTON COLLISIONS; PB-PB COLLISIONS; MOMENTUM; DEPENDENCE; PION; DISTRIBUTIONS; KAON, --, 541, NATURAL SCIENCES. Physics., dependence [multiplicity], transverse spherocity, charged particle: production, Astronomical sciences, experimental results