Measurement of the Y(1S) pair production cross section and search for resonances decaying to Y(1S)μ+μ- in proton-proton collisions at √s=13 TeV

被引：15

作者：

Sirunyan, A. M. ^{[1
]}

Tumasyan, A. ^{[1
]}

Adam, W. ^{[2
]}

Ambrogi, F. ^{[2
]}

Bergauer, T. ^{[2
]}

Brandstetter, J. ^{[2
]}

Dragicevic, M. ^{[2
]}

Eroe, J. ^{[2
]}

Del Valle, A. Escalante ^{[2
]}

Flechl, M. ^{[2
]}

Fruehwirth, R. ^{[2
,214
]}

Jeitler, M. ^{[2
,214
]}

Krammer, N. ^{[2
]}

Kraetschmer, I ^{[2
]}

Liko, D. ^{[2
]}

Madlener, T. ^{[2
]}

Mikulec, I ^{[2
]}

Rad, N. ^{[2
]}

Schieck, J. ^{[2
,214
]}

Schoefbeck, R. ^{[2
]}

Spanring, M. ^{[2
]}

Spitzbart, D. ^{[2
]}

Waltenberger, W. ^{[2
]}

Wulz, C-E ^{[2
,214
]}

Zarucki, M. ^{[2
]}

Drugakov, V ^{[3
]}

Mossolov, V ^{[3
]}

Gonzalez, J. Suarez ^{[3
]}

Darwish, M. R. ^{[4
]}

De Wolf, E. A. ^{[4
]}

Di Croce, D. ^{[4
]}

Janssen, X. ^{[4
]}

Lelek, A. ^{[4
]}

Pieters, M. ^{[4
]}

Sfar, H. Rejeb ^{[4
]}

Van Haevermaet, H. ^{[4
]}

Van Mechelen, P. ^{[4
]}

Van Putte, S. ^{[4
]}

Van Remortel, N. ^{[4
]}

Blekman, F. ^{[5
]}

Bols, E. S. ^{[5
]}

Chhibra, S. S. ^{[5
]}

D'Hondt, J. ^{[5
]}

De Clercq, J. ^{[5
]}

Lontkovskyi, D. ^{[5
]}

Lowette, S. ^{[5
]}

Marchesini, I ^{[5
]}

Moortgat, S. ^{[5
]}

Python, Q. ^{[5
]}

Skovpen, K. ^{[5
]}

机构：

[1] Yerevan Phys Inst, Yerevan, Armenia

[2] Inst Hochenergiephys, Vienna, Austria

[3] Inst Nucl Problems, Minsk, BELARUS

[4] Univ Antwerp, Antwerp, Belgium

[5] Vrije Univ Brussel, Brussels, Belgium

[6] Univ Libre Bruxelles, Brussels, Belgium

[7] Univ Ghent, Ghent, Belgium

[8] Catholic Univ Louvain, Louvain La Neuve, Belgium

[9] Ctr Brasileiro Pesquisas Fis, Rio De Janeiro, Brazil

[10] Univ Estado Rio de Janeiro, Rio De Janeiro, Brazil

[11] Univ Estadual Paulista, Sao Paulo, Brazil

[12] Univ Fed ABC, Sao Paulo, Brazil

[13] Bulgarian Acad Sci, Inst Nucl Res & Nucl Energy, Sofia, Bulgaria

[14] Univ Sofia, Sofia, Bulgaria

[15] Beihang Univ, Beijing, Peoples R China

[16] Tsinghua Univ, Dept Phys, Beijing, Peoples R China

[17] Inst High Energy Phys, Beijing, Peoples R China

[18] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing, Peoples R China

[19] Zhejiang Univ, Hangzhou, Peoples R China

[20] Univ Los Andes, Bogota, Colombia

[21] Univ Antioquia, Medellin, Colombia

[22] Univ Split, Fac Elect Engn Mech Engn & Naval Architecture, Split, Croatia

[23] Univ Split, Fac Sci, Split, Croatia

[24] Inst Rudjer Boskovic, Zagreb, Croatia

[25] Univ Cyprus, Nicosia, Cyprus

[26] Charles Univ Prague, Prague, Czech Republic

[27] Escuela Politec Nacl, Quito, Ecuador

[28] Univ San Francisco Quito, Quito, Ecuador

[29] Acad Sci Res & Technol Arab Republ Egypt, Egyptian Network High Energy Phys, Cairo, Egypt

[30] NICPB, Tallinn, Estonia

[31] Univ Helsinki, Dept Phys, Helsinki, Finland

[32] Helsinki Inst Phys, Helsinki, Finland

[33] Lappeenranta Univ Technol, Lappeenranta, Finland

[34] Univ Paris Saclay, CEA, IRFU, Gif Sur Yvette, France

[35] Inst Polytech Paris, Lab Leprince Ringuet, Ecole Polytech, IN2P3,CNRS, Paris, France

[36] Univ Strasbourg, CNRS, IPHC UMR 7178, Strasbourg, France

[37] Inst Natl Phys Nucl & Phys Particules, IN2P3, CNRS, Ctr Calcul, Villeurbanne, France

[38] Univ Lyon, Univ Claude Bernard Lyon 1, Inst Phys Nucl Lyon, CNRS,IN2P3, Villeurbanne, France

[39] Georgian Tech Univ, Tbilisi, Georgia

[40] Tbilisi State Univ, Tbilisi, Georgia

[41] Rhein Westfal TH Aachen, Phys Inst 1, Aachen, Germany

[42] Rhein Westfal TH Aachen, Phys Inst A 3, Aachen, Germany

[43] Rhein Westfal TH Aachen, Phys Inst B 3, Aachen, Germany

[44] DESY, Hamburg, Germany

[45] Univ Hamburg, Hamburg, Germany

[46] Karlsruher Inst Technol, Karlsruhe, Germany

[47] NCSR Demokritos, Inst Nucl & Particle Phys INPP, Aghia Paraskevi, Greece

[48] Natl & Kapodistrian Univ Athens, Athens, Greece

[49] Natl Tech Univ Athens, Athens, Greece

[50] Univ Ioannina, Ioannina, Greece

来源：

PHYSICS LETTERS B | 2020年 / 808卷

基金：

英国科学技术设施理事会; 巴西圣保罗研究基金会; 欧盟地平线“2020”; 欧洲研究理事会; 芬兰科学院;

关键词：

CMS; Upsilon; MATRIX-ELEMENT; HELAC-ONIA; GENERATOR;

D O I：

10.1016/j.physletb.2020.135578

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The fiducial cross section for Y(1S) pair production in proton-proton collisions at a center-of-mass energy of 13TeVin the region where both Y(1S) mesons have an absolute rapidity below 2.0 is measured to be 79 +/- 11 (stat) +/- 6 (syst) +/- 3 (B) pbassuming the mesons are produced unpolarized. The last uncertainty corresponds to the uncertainty in the Y(1S) meson dimuon branching fraction. The measurement is performed in the final state with four muons using proton-proton collision data collected in 2016 by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb(-1). This process serves as a standard model reference in a search for narrow resonances decaying to Y(1S)mu(+)mu(-) in the same final state. Such a resonance could indicate the existence of a tetraquark that is a bound state of two bquarks and two (b) over bar antiquarks. The tetraquark search is performed for masses in the vicinity of four times the bottom quark mass, between 17.5 and 19.5 GeV, while a generic search for other resonances is performed for masses between 16.5 and 27 GeV. No significant excess of events compatible with a narrow resonance is observed in the data. Limits on the production cross section times branching fraction to four muons via an intermediate Y(1S) resonance are set as a function of the resonance mass. (C) 2020 The Author(s). Published by Elsevier B.V.

引用

页数：27

共 41 条

[1] Search for beautiful tetraquarks in the γ(1S)μ+μ- invariant-mass spectrum [J].

Aaij, R. ;

Adeva, B. ;

Adinolfi, M. ;

Aidala, C. A. ;

Ajaltouni, Z. ;

Akar, S. ;

Albicocco, P. ;

Albrecht, J. ;

Alessio, F. ;

Alexander, M. ;

Alfonso Albero, A. ;

Ali, S. ;

Alkhazov, G. ;

Cartelle, P. Alvarez ;

Alves, A. A., Jr. ;

Amato, S. ;

Amerio, S. ;

Amhis, Y. ;

An, L. ;

Anderlini, L. ;

Andreassi, G. ;

Andreotti, M. ;

Andrews, J. E. ;

Appleby, R. B. ;

Archilli, F. ;

d'Argent, P. ;

Romeu, J. Arnau ;

Artamonov, A. ;

Artuso, M. ;

Arzymatov, K. ;

Aslanides, E. ;

Atzeni, M. ;

Audurier, B. ;

Bachmann, S. ;

Back, J. J. ;

Baker, S. ;

Balagura, V. ;

Baldini, W. ;

Baranov, A. ;

Barlow, R. J. ;

Barsuk, S. ;

Barter, W. ;

Baryshnikov, F. ;

Batozskaya, V. ;

Batsukh, B. ;

Battista, V. ;

Bay, A. ;

Beddow, J. ;

Bedeschi, F. ;

Bediaga, I. .

JOURNAL OF HIGH ENERGY PHYSICS, 2018, (10)

[2] GEANT4-a simulation toolkit [J].

Agostinelli, S ;

Allison, J ;

Amako, K ;

Apostolakis, J ;

Araujo, H ;

Arce, P ;

Asai, M ;

Axen, D ;

Banerjee, S ;

Barrand, G ;

Behner, F ;

Bellagamba, L ;

Boudreau, J ;

Broglia, L ;

Brunengo, A ;

Burkhardt, H ;

Chauvie, S ;

Chuma, J ;

Chytracek, R ;

Cooperman, G ;

Cosmo, G ;

Degtyarenko, P ;

Dell'Acqua, A ;

Depaola, G ;

Dietrich, D ;

Enami, R ;

Feliciello, A ;

Ferguson, C ;

Fesefeldt, H ;

Folger, G ;

Foppiano, F ;

Forti, A ;

Garelli, S ;

Giani, S ;

Giannitrapani, R ;

Gibin, D ;

Cadenas, JJG ;

González, I ;

Abril, GG ;

Greeniaus, G ;

Greiner, W ;

Grichine, V ;

Grossheim, A ;

Guatelli, S ;

Gumplinger, P ;

Hamatsu, R ;

Hashimoto, K ;

Hasui, H ;

Heikkinen, A ;

Howard, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303

[3] Constraining anomalous HVV interactions at proton and lepton colliders [J].

Anderson, Ian ;

Bolognesi, Sara ;

Caola, Fabrizio ;

Gao, Yanyan ;

Gritsan, Andrei V. ;

Martin, Christopher B. ;

Melnikov, Kirill ;

Schulze, Markus ;

Tran, Nhan V. ;

Whitbeck, Andrew ;

Zhou, Yaofu .

PHYSICAL REVIEW D, 2014, 89 (03)

[4]

[Anonymous], CMSPASLUM17001

[5]

[Anonymous], CMSNOTE2011005 ATLAS

[6]

[Anonymous], 2015, THESIS

[7] Spectroscopy and decays of the fully-heavy tetraquarks [J].

Anwar, Muhammad Naeem ;

Ferretti, Jacopo ;

Guo, Feng-Kun ;

Santopinto, Elena ;

Zou, Bing-Song .

EUROPEAN PHYSICAL JOURNAL C, 2018, 78 (08)

[8] Beauty-full tetraquarks [J].

Bai, Yang ;

Lu, Sida ;

Osborne, James .

PHYSICS LETTERS B, 2019, 798

[9] HADRONIC PRODUCTION OF J-PSI AND UPSILON - TRANSVERSE-MOMENTUM DISTRIBUTIONS [J].

BAIER, R ;

RUCKL, R .

PHYSICS LETTERS B, 1981, 102 (05) :364-370

[10] Heavy tetraquarks production at the LHC [J].

Berezhnoy, A. V. ;

Luchinsky, A. V. ;

Novoselov, A. A. .

PHYSICAL REVIEW D, 2012, 86 (03)

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