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5,105 results on '"Flouris G"'

1. Technologies for the ELGAR large scale atom interferometer array

Author: Canuel, B., Abend, S., Amaro-Seoane, P., Badaracco, F., Beaufils, Q., Bertoldi, A., Bongs, K., Bouyer, P., Braxmaier, C., Chaibi, W., Christensen, N., Fitzek, F., Flouris, G., Gaaloul, N., Gaffet, S., Alzar, C. L. Garrido, Geiger, R., Guellati-Khelifa, S., Hammerer, K., Harms, J., Hinderer, J., Holynski, M., Junca, J., Katsanevas, S., Klempt, C., Kozanitis, C., Krutzik, M., Landragin, A., Roche, I. Làzaro, Leykauf, B., Lien, Y. -H., Loriani, S., Merlet, S., Merzougui, M., Nofrarias, M., Papadakos, P., Santos, F. Pereira dos, Peters, A., Plexousakis, D., Prevedelli, M., Rasel, E. M., Rogister, Y., Rosat, S., Roura, A., Sabulsky, D. O., Schkolnik, V., Schlippert, D., Schubert, C., Sidorenkov, L., Siemß, J. -N., Sopuerta, C. F., Sorrentino, F., Struckmann, C., Tino, G. M., Tsagkatakis, G., Viceré, A., von Klitzing, W., Woerner, L., and Zou, X.
Subjects: Physics - Atomic Physics
Abstract: We proposed the European Laboratory for Gravitation and Atom-interferometric Research (ELGAR), an array of atom gradiometers aimed at studying space-time and gravitation with the primary goal of observing gravitational waves (GWs) in the infrasound band with a peak strain sensitivity of $3.3 \times 10^{-22}/\sqrt{\text{Hz}}$ at 1.7 Hz. In this paper we detail the main technological bricks of this large scale detector and emphasis the research pathways to be conducted for its realization. We discuss the site options, atom optics, and source requirements needed to reach the target sensitivity. We then discuss required seismic isolation techniques, Gravity Gradient Noise reduction strategies, and the metrology of various noise couplings to the detector., Comment: This paper contains the technical aspects of the ELGAR facility. This content was originally included in arXiv:1911.03701 and will finally be published separately
Published: 2020

2. Measurement of differential cross sections for Z bosons produced in association with charm jets in pp collisions at √s=13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Eroe, J, Del Valle, A Escalante, Flechl, M, Fruehwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Kraetschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schoefbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van de Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, and Bakhshiansohi, H
Subjects: Hadron-Hadron scattering, QCD, hep-ex, 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: Measurements are presented of differential cross sections for the production of Z bosons in association with at least one jet initiated by a charm quark in pp collisions at s = 13 TeV. The data recorded by the CMS experiment at the LHC correspond to an integrated luminosity of 35.9 fb−1. The final states contain a pair of electrons or muons that are the decay products of a Z boson, and a jet consistent with being initiated by a charm quark produced in the hard interaction. Differential cross sections as a function of the transverse momentum pT of the Z boson and pT of the charm jet are compared with predictions from Monte Carlo event generators. The inclusive production cross section 405.4 ± 5.6 (stat) ± 24.3 (exp) ± 3.7 (theo) pb, is measured in a fiducial region requiring both leptons to have pseudorapidity |η| < 2.4 and pT> 10 GeV, at least one lepton with pT> 26 GeV, and a mass of the pair in the range 71–111 GeV, while the charm jet is required to have pT> 30 GeV and |η| < 2.4. These are the first measurements of these cross sections in proton-proton collisions at 13 TeV. [Figure not available: see fulltext.]
Published: 2021

3. ELGAR -- a European Laboratory for Gravitation and Atom-interferometric Research

Author: Canuel, B., Abend, S., Amaro-Seoane, P., Badaracco, F., Beaufils, Q., Bertoldi, A., Bongs, K., Bouyer, P., Braxmaier, C., Chaibi, W., Christensen, N., Fitzek, F., Flouris, G., Gaaloul, N., Gaffet, S., Alzar, C. L. Garrido, Geiger, R., Guellati-Khelifa, S., Hammerer, K., Harms, J., Hinderer, J., Junca, J., Katsanevas, S., Klempt, C., Kozanitis, C., Krutzik, M., Landragin, A., Roche, I. Làzaro, Leykauf, B., Lien, Y. -H., Loriani, S., Merlet, S., Merzougui, M., Nofrarias, M., Papadakos, P., Pereira, F., Peters, A., Plexousakis, D., Prevedelli, M., Rasel, E., Rogister, Y., Rosat, S., Roura, A., Sabulsky, D. O., Schkolnik, V., Schlippert, D., Schubert, C., Sidorenkov, L., Siemß, J. -N., Sopuerta, C. F., Sorrentino, F., Struckmann, C., Tino, G. M., Tsagkatakis, G., Viceré, A., von Klitzing, W., Woerner, L., and Zou, X.
Subjects: Physics - Atomic Physics, General Relativity and Quantum Cosmology
Abstract: Gravitational Waves (GWs) were observed for the first time in 2015, one century after Einstein predicted their existence. There is now growing interest to extend the detection bandwidth to low frequency. The scientific potential of multi-frequency GW astronomy is enormous as it would enable to obtain a more complete picture of cosmic events and mechanisms. This is a unique and entirely new opportunity for the future of astronomy, the success of which depends upon the decisions being made on existing and new infrastructures. The prospect of combining observations from the future space-based instrument LISA together with third generation ground based detectors will open the way towards multi-band GW astronomy, but will leave the infrasound (0.1 Hz to 10 Hz) band uncovered. GW detectors based on matter wave interferometry promise to fill such a sensitivity gap. We propose the European Laboratory for Gravitation and Atom-interferometric Research (ELGAR), an underground infrastructure based on the latest progress in atomic physics, to study space-time and gravitation with the primary goal of detecting GWs in the infrasound band. ELGAR will directly inherit from large research facilities now being built in Europe for the study of large scale atom interferometry and will drive new pan-European synergies from top research centers developing quantum sensors. ELGAR will measure GW radiation in the infrasound band with a peak strain sensitivity of $4.1 \times 10^{-22}/\sqrt{\text{Hz}}$ at 1.7 Hz. The antenna will have an impact on diverse fundamental and applied research fields beyond GW astronomy, including gravitation, general relativity, and geology.
Published: 2019
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4. Measurement of single-diffractive dijet production in proton–proton collisions at s=8Te with the CMS and TOTEM experiments

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Valle, A Escalante Del, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Croce, D Di, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Haevermaet, H Van, Mechelen, P Van, Remortel, N Van, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Doninck, W Van, Mulders, P Van, Parijs, I Van, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: CMS and TOTEM Collaborations, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Measurements are presented of the single-diffractive dijet cross section and the diffractive cross section as a function of the proton fractional momentum loss ξ and the four-momentum transfer squared t. Both processes pp→pX and pp→Xp , i.e. with the proton scattering to either side of the interaction point, are measured, where X includes at least two jets; the results of the two processes are averaged. The analyses are based on data collected simultaneously with the CMS and TOTEM detectors at the LHC in proton-proton collisions at s=8Te during a dedicated run with β∗=90m at low instantaneous luminosity and correspond to an integrated luminosity of 37.5nb-1 . The single-diffractive dijet cross section σjjpX , in the kinematic region ξ40Ge , and pseudorapidity |η|
Published: 2020

5. Measurement of tt¯ normalised multi-differential cross sections in pp collisions at s=13TeV, and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, and Magitteri, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, 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: Normalised multi-differential cross sections for top quark pair (t t ¯) production are measured in proton-proton collisions at a centre-of-mass energy of 13TeV using events containing two oppositely charged leptons. The analysed data were recorded with the CMS detector in 2016 and correspond to an integrated luminosity of 35.9fb-1. The double-differential t t ¯ cross section is measured as a function of the kinematic properties of the top quark and of the t t ¯ system at parton level in the full phase space. A triple-differential measurement is performed as a function of the invariant mass and rapidity of the t t ¯ system and the multiplicity of additional jets at particle level. The data are compared to predictions of Monte Carlo event generators that complement next-to-leading-order (NLO) quantum chromodynamics (QCD) calculations with parton showers. Together with a fixed-order NLO QCD calculation, the triple-differential measurement is used to extract values of the strong coupling strength αS and the top quark pole mass (mtpole) using several sets of parton distribution functions (PDFs). The measurement of mtpole exploits the sensitivity of the t t ¯ invariant mass distribution to mtpole near the production threshold. Furthermore, a simultaneous fit of the PDFs, αS, and mtpole is performed at NLO, demonstrating that the new data have significant impact on the gluon PDF, and at the same time allow an accurate determination of αS and mtpole. The values αS(mZ)=0.1135-0.0017+0.0021 and mtpole=170.5±0.8GeV are extracted, which account for experimental and theoretical uncertainties, the latter being estimated from NLO scale variations. Possible effects from Coulomb and soft-gluon resummation near the t t ¯ production threshold are neglected in these parameter extractions. A rough estimate of these effects indicates an expected correction of mtpole of the order of +1GeV, which can be regarded as additional theoretical uncertainty in the current mtpole extraction.
Published: 2020

6. Measurement of t t ¯ normalised multi-differential cross sections in pp collisions at √s=13TeV , and simultaneous determination of the strong coupling strength, top quark pole mass, and parton distribution functions

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, AE, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, JS, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Velde, CV, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, and Magitteri, A
Subjects: hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Normalised multi-differential cross sections for top quark pair (t t ¯) production are measured in proton-proton collisions at a centre-of-mass energy of 13TeV using events containing two oppositely charged leptons. The analysed data were recorded with the CMS detector in 2016 and correspond to an integrated luminosity of 35.9fb-1. The double-differential t t ¯ cross section is measured as a function of the kinematic properties of the top quark and of the t t ¯ system at parton level in the full phase space. A triple-differential measurement is performed as a function of the invariant mass and rapidity of the t t ¯ system and the multiplicity of additional jets at particle level. The data are compared to predictions of Monte Carlo event generators that complement next-to-leading-order (NLO) quantum chromodynamics (QCD) calculations with parton showers. Together with a fixed-order NLO QCD calculation, the triple-differential measurement is used to extract values of the strong coupling strength αS and the top quark pole mass (mtpole) using several sets of parton distribution functions (PDFs). The measurement of mtpole exploits the sensitivity of the t t ¯ invariant mass distribution to mtpole near the production threshold. Furthermore, a simultaneous fit of the PDFs, αS, and mtpole is performed at NLO, demonstrating that the new data have significant impact on the gluon PDF, and at the same time allow an accurate determination of αS and mtpole. The values αS(mZ)=0.1135-0.0017+0.0021 and mtpole=170.5±0.8GeV are extracted, which account for experimental and theoretical uncertainties, the latter being estimated from NLO scale variations. Possible effects from Coulomb and soft-gluon resummation near the t t ¯ production threshold are neglected in these parameter extractions. A rough estimate of these effects indicates an expected correction of mtpole of the order of +1GeV, which can be regarded as additional theoretical uncertainty in the current mtpole extraction.
Published: 2020

7. Combined search for supersymmetry with photons in proton-proton collisions at root s=13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Eroe, J, Del Valle, A Escalante, Flechl, M, Fruehwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Kraetschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schoefbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, and Bakhshiansohi, H
Subjects: CMS, Physics, Supersymmetry, Gauge-mediated supersymmetry, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: A combination of four searches for new physics involving signatures with atleast one photon and large missing transverse momentum, motivated bygeneralized models of gauge-mediated supersymmetry (SUSY) breaking, ispresented. All searches make use of proton-proton collision data at $\sqrt{s}=$ 13 TeV, which were recorded with the CMS detector at the LHC in 2016, andcorrespond to an integrated luminosity of 35.9 fb$^{-1}$. Signatures with atleast one photon and large missing transverse momentum are categorized intoevents with two isolated photons, events with a lepton and a photon, eventswith additional jets, and events with at least one high-energy photon. Noexcess of events is observed beyond expectations from standard model processes,and limits are set in the context of gauge-mediated SUSY. Compared to theindividual searches, the combination extends the sensitivity to gauge-mediatedSUSY in both electroweak and strong production scenarios by up to 100 GeV inneutralino and chargino masses, and yields the first CMS result combiningvarious SUSY searches in events with photons at $\sqrt{s} =$ 13 TeV.
Published: 2020

8. Multiparticle correlation studies in pPb collisions at sNN =8.16 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, JS, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: hep-ex, nucl-ex
Abstract: The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at sNN=8.16TeV, are studied over a wide range of event multiplicities. Multiparticle correlations are used to isolate global properties stemming from the collision overlap geometry. The second-order "elliptic" harmonic moment is obtained with high precision through four-, six-, and eight-particle correlations and, for the first time, the third-order "triangular" harmonic moment is studied using four-particle correlations. A sample of peripheral PbPb collisions at sNN=5.02TeV that covers a similar range of event multiplicities as the pPb results is also analyzed. Model calculations of initial-state fluctuations in pPb and PbPb collisions can be directly compared to the high-precision experimental results. This work provides new insight into the fluctuation-driven origin of the v3 coefficients in pPb and PbPb collisions, and into the dominating overall collision geometry in PbPb collisions at the earliest stages of heavy ion interactions.
Published: 2020

9. Measurement of electroweak production of a W boson in association with two jets in proton-proton collisions at s=13Te.

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, and Piotrzkowski, K
Subjects: CMS Collaboration, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: A measurement is presented of electroweak (EW) production of a W boson in association with two jets in proton-proton collisions at s=13Te . The data sample was recorded by the CMS Collaboration at the LHC and corresponds to an integrated luminosity of 35.9 fb-1 . The measurement is performed for the ℓν jj final state (with ℓν indicating a lepton-neutrino pair, and j representing the quarks produced in the hard interaction) in a kinematic region defined by invariant mass mjj>120Ge and transverse momenta pTj>25Ge . The cross section of the process is measured in the electron and muon channels yielding σEW(Wjj)=6.23±0.12(stat)±0.61(syst)pb per channel, in agreement with leading-order standard model predictions. The additional hadronic activity of events in a signal-enriched region is studied, and the measurements are compared with predictions. The final state is also used to perform a search for anomalous trilinear gauge couplings. Limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory. The corresponding 95% confidence level intervals are -2.3
Published: 2020

10. Search for light pseudoscalar boson pairs produced from decays of the 125 GeV Higgs boson in final states with two muons and two nearby tracks in pp collisions at s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D’hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, and Magitteri, A
Subjects: CMS, Physics, Higgs boson, NMSSM, 2HD+1S, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: A search is presented for pairs of light pseudoscalar bosons, in the mass range from 4 to 15 GeV, produced from decays of the 125 GeV Higgs boson. The decay modes considered are final states that arise when one of the pseudoscalars decays to a pair of tau leptons, and the other one either into a pair of tau leptons or muons. The search is based on proton-proton collisions collected by the CMS experiment in 2016 at a center-of-mass energy of 13 TeV that correspond to an integrated luminosity of 35.9 fb−1. The 2μ2τ and 4τ channels are used in combination to constrain the product of the Higgs boson production cross section and the branching fraction into 4τ final state, σB, exploiting the linear dependence of the fermionic coupling strength of pseudoscalar bosons on the fermion mass. No significant excess is observed beyond the expectation from the standard model. The observed and expected upper limits at 95% confidence level on σB, relative to the standard model Higgs boson production cross section, are set respectively between 0.022 and 0.23 and between 0.027 and 0.19 in the mass range probed by the analysis.
Published: 2020

11. Observation of nuclear modifications in W± boson production in pPb collisions at sNN=8.16TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: CMS, Heavy ions, Electroweak, W boson, pPb, nPDF, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: The production of W± bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of sNN=8.16TeV. Measurements are performed in the W±→μ±νμ channel using a data sample corresponding to an integrated luminosity of 173.4±6.1nb−1, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame |ηlabμ|25GeV/c. The W± boson differential cross sections, muon charge asymmetry, and the ratios of W± boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits.
Published: 2020

12. Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: CMS, Physics, Top quark, Single top, Cross section, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb−1. Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130±1(stat)±19(syst)pb and 77±1(stat)±12(syst)pb, respectively, and their ratio is 1.68±0.02(stat)±0.05(syst). The results are in agreement with the predictions from the standard model.
Published: 2020

13. Extraction and validation of a new set of CMS pythia8 tunes from underlying-event measurements.

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, Delaere, C, and Delcourt, M
Subjects: CMS Collaboration, hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: New sets of CMS underlying-event parameters ("tunes") are presented for the pythia8 event generator. These tunes use the NNPDF3.1 parton distribution functions (PDFs) at leading (LO), next-to-leading (NLO), or next-to-next-to-leading (NNLO) orders in perturbative quantum chromodynamics, and the strong coupling evolution at LO or NLO. Measurements of charged-particle multiplicity and transverse momentum densities at various hadron collision energies are fit simultaneously to determine the parameters of the tunes. Comparisons of the predictions of the new tunes are provided for observables sensitive to the event shapes at LEP, global underlying event, soft multiparton interactions, and double-parton scattering contributions. In addition, comparisons are made for observables measured in various specific processes, such as multijet, Drell-Yan, and top quark-antiquark pair production including jet substructure observables. The simulation of the underlying event provided by the new tunes is interfaced to a higher-order matrix-element calculation. For the first time, predictions from pythia8 obtained with tunes based on NLO or NNLO PDFs are shown to reliably describe minimum-bias and underlying-event data with a similar level of agreement to predictions from tunes using LO PDF sets.
Published: 2020

14. Multiparticle correlation studies in pPb collisions at sNN=8.16 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: Nuclear and Plasma Physics, Physical Sciences, hep-ex, nucl-ex, Nuclear and plasma physics
Abstract: The second- and third-order azimuthal anisotropy Fourier harmonics of charged particles produced in pPb collisions, at sNN=8.16TeV, are studied over a wide range of event multiplicities. Multiparticle correlations are used to isolate global properties stemming from the collision overlap geometry. The second-order "elliptic" harmonic moment is obtained with high precision through four-, six-, and eight-particle correlations and, for the first time, the third-order "triangular" harmonic moment is studied using four-particle correlations. A sample of peripheral PbPb collisions at sNN=5.02TeV that covers a similar range of event multiplicities as the pPb results is also analyzed. Model calculations of initial-state fluctuations in pPb and PbPb collisions can be directly compared to the high-precision experimental results. This work provides new insight into the fluctuation-driven origin of the v3 coefficients in pPb and PbPb collisions, and into the dominating overall collision geometry in PbPb collisions at the earliest stages of heavy ion interactions.
Published: 2020

15. Measurement of the single top quark and antiquark production cross sections in the t channel and their ratio in proton-proton collisions at s = 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS, Physics, Top quark, Single top, Cross section, hep-ex, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: Measurements of the cross sections for the production of single top quarks and antiquarks in the t channel, and their ratio, are presented for proton-proton collisions at a center-of-mass energy of 13 TeV. The data set used was recorded in 2016 by the CMS detector at the LHC and corresponds to an integrated luminosity of 35.9 fb−1. Events with one muon or electron are selected, and different categories of jet and b jet multiplicity and multivariate discriminators are applied to separate the signal from the background. The cross sections for the t-channel production of single top quarks and antiquarks are measured to be 130±1(stat)±19(syst)pb and 77±1(stat)±12(syst)pb, respectively, and their ratio is 1.68±0.02(stat)±0.05(syst). The results are in agreement with the predictions from the standard model.
Published: 2020

16. Search for light pseudoscalar boson pairs produced from decays of the 125 GeV Higgs boson in final states with two muons and two nearby tracks in pp collisions at s = 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, and Magitteri, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS, Physics, Higgs boson, NMSSM, 2HD+1S, hep-ex, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: A search is presented for pairs of light pseudoscalar bosons, in the mass range from 4 to 15 GeV, produced from decays of the 125 GeV Higgs boson. The decay modes considered are final states that arise when one of the pseudoscalars decays to a pair of tau leptons, and the other one either into a pair of tau leptons or muons. The search is based on proton-proton collisions collected by the CMS experiment in 2016 at a center-of-mass energy of 13 TeV that correspond to an integrated luminosity of 35.9 fb−1. The 2μ2τ and 4τ channels are used in combination to constrain the product of the Higgs boson production cross section and the branching fraction into 4τ final state, σB, exploiting the linear dependence of the fermionic coupling strength of pseudoscalar bosons on the fermion mass. No significant excess is observed beyond the expectation from the standard model. The observed and expected upper limits at 95% confidence level on σB, relative to the standard model Higgs boson production cross section, are set respectively between 0.022 and 0.23 and between 0.027 and 0.19 in the mass range probed by the analysis.
Published: 2020

17. Observation of nuclear modifications in W± boson production in pPb collisions at s NN = 8.16 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Synchrotrons and Accelerators, Physical Sciences, CMS, Heavy ions, Electroweak, W boson, pPb, nPDF, hep-ex, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: The production of W± bosons is studied in proton-lead (pPb) collisions at a nucleon-nucleon centre-of-mass energy of sNN=8.16TeV. Measurements are performed in the W±→μ±νμ channel using a data sample corresponding to an integrated luminosity of 173.4±6.1nb−1, collected by the CMS Collaboration at the LHC. The number of positively and negatively charged W bosons is determined separately in the muon pseudorapidity region in the laboratory frame |ηlabμ|25GeV/c. The W± boson differential cross sections, muon charge asymmetry, and the ratios of W± boson yields for the proton-going over the Pb-going beam directions are reported as a function of the muon pseudorapidity in the nucleon-nucleon centre-of-mass frame. The measurements are compared to the predictions from theoretical calculations based on parton distribution functions (PDFs) at next-to-leading-order. The results favour PDF calculations that include nuclear modifications and provide constraints on the nuclear PDF global fits.
Published: 2020

18. Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at sNN=5.44 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: CMS, Physics, Xenon-xenon, Hadrons, Multiplicity, Spectra, hep-ex, nucl-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range |η|
Published: 2019

19. Search for Low-Mass Quark-Antiquark Resonances Produced in Association with a Photon at s=13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Drugakov, V, Mossolov, V, Gonzalez, J Suarez, Darwish, MR, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Putte, S, Van Remortel, N, Blekman, F, Bols, ES, Chhibra, SS, D’Hondt, J, De Clercq, J, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, Piotrzkowski, K, Prisciandaro, J, Saggio, A, and Marono, M Vidal
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, Mathematical Sciences, Engineering, General Physics, Mathematical sciences, Physical sciences
Abstract: A search for narrow low-mass resonances decaying to quark-antiquark pairs is presented. The search is based on proton-proton collision events collected at 13 TeV by the CMS detector at the CERN LHC. The data sample corresponds to an integrated luminosity of 35.9 fb^{-1}, recorded in 2016. The search considers the case where the resonance has high transverse momentum due to initial-state radiation of a hard photon. To study this process, the decay products of the resonance are reconstructed as a single large-radius jet with two-pronged substructure. The signal would be identified as a localized excess in the jet invariant mass spectrum. No evidence for such a resonance is observed in the mass range 10 to 125 GeV. Upper limits at the 95% confidence level are set on the coupling strength of resonances decaying to quark pairs. The results obtained with this photon trigger strategy provide the first direct constraints on quark-antiquark resonance masses below 50 GeV obtained at a hadron collider.
Published: 2019

20. Constraints on anomalous HVV couplings from the production of Higgs bosons decaying to τ lepton pairs

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D’hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, and Magitteri, A
Subjects: hep-ex
Abstract: A study is presented of anomalous HVV interactions of the Higgs boson, including its CP properties. The study uses Higgs boson candidates produced mainly in vector boson fusion and gluon fusion that subsequently decay to a pair of τ leptons. The data were recorded by the CMS experiment at the LHC in 2016 at a center-of-mass energy of 13 TeV and correspond to an integrated luminosity of 35.9 fb-1. A matrix element technique is employed for the analysis of anomalous interactions. The results are combined with those from the H→4â.," decay channel presented earlier, yielding the most stringent constraints on anomalous Higgs boson couplings to electroweak vector bosons expressed as effective cross section fractions and phases: The CP-violating parameter fa3cos(φa3)=(0.00±0.27)×10-3 and the CP-conserving parameters fa2cos(φa2)=(0.08-0.21+1.04)×10-3, fΛ1cos(φΛ1)=(0.00-0.09+0.53)×10-3, and fΛ1Zγcos(φΛ1Zγ)=(0.0-1.3+1.1)×10-3. The current dataset does not allow for precise constraints on CP properties in the gluon fusion process. The results are consistent with standard model expectations.
Published: 2019

21. Measurement of the differential Drell-Yan cross section in proton-proton collisions at s = 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Mathematical Physics, Mathematical Sciences, Physical Sciences, Hadron-Hadron scattering, Particle and resonance production, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Mathematical physics, Nuclear and plasma physics, Particle and high energy physics
Abstract: Measurements of the differential cross section for the Drell-Yan process, based on proton-proton collision data at a centre-of-mass energy of 13 TeV, collected by the CMS experiment, are presented. The data correspond to an integrated luminosity of 2.8 (2.3) fb−1 in the dimuon (dielectron) channel. The total and fiducial cross section measurements are presented as a function of dilepton invariant mass in the range 15 to 3000 GeV, and compared with the perturbative predictions of the standard model. The measured differential cross sections are in good agreement with the theoretical calculations. [Figure not available: see fulltext.].
Published: 2019

22. Measurement of the differential Drell-Yan cross section in proton-proton collisions at √s = 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: Hadron-Hadron scattering, Particle and resonance production, hep-ex, Nuclear & Particles Physics, Mathematical Sciences, Physical Sciences, Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: Measurements of the differential cross section for the Drell-Yan process, based on proton-proton collision data at a centre-of-mass energy of 13 TeV, collected by the CMS experiment, are presented. The data correspond to an integrated luminosity of 2.8 (2.3) fb−1 in the dimuon (dielectron) channel. The total and fiducial cross section measurements are presented as a function of dilepton invariant mass in the range 15 to 3000 GeV, and compared with the perturbative predictions of the standard model. The measured differential cross sections are in good agreement with the theoretical calculations. [Figure not available: see fulltext.].
Published: 2019

23. Pseudorapidity distributions of charged hadrons in xenon-xenon collisions at s NN = 5.44 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS, Physics, Xenon-xenon, Hadrons, Multiplicity, Spectra, hep-ex, nucl-ex, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: Measurements of the pseudorapidity distributions of charged hadrons produced in xenon-xenon collisions at a nucleon-nucleon centre-of-mass energy of sNN=5.44 TeV are presented. The measurements are based on data collected by the CMS experiment at the LHC. The yield of primary charged hadrons produced in xenon-xenon collisions in the pseudorapidity range |η|
Published: 2019

24. Search for anomalous electroweak production of vector boson pairs in association with two jets in proton-proton collisions at 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D'Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, and Piotrzkowski, K
Subjects: CMS, Physics, VBS, Charged Higgs, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: A search for anomalous electroweak production of WW, WZ, and ZZ boson pairs in association with two jets in proton-proton collisions at s=13TeV at the LHC is reported. The data sample corresponds to an integrated luminosity of 35.9fb−1 collected with the CMS detector. Events are selected by requiring two jets with large rapidity separation and invariant mass, one or two leptons (electrons or muons), and a W or Z boson decaying hadronically. No excess of events with respect to the standard model background predictions is observed and constraints on the structure of quartic vector boson interactions in the framework of dimension-8 effective field theory operators are reported. Stringent limits on parameters of the effective field theory operators are obtained. The observed 95% confidence level limits for the S0, M0, and T0 operators are −2.7
Published: 2019

25. Search for MSSM Higgs bosons decaying to μ+μ-in proton-proton collisions at √s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalantedelvalle, A, Flechl, M, Frühwirth, R, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Drugakov, V, Mossolov, V, Gonzalez, JS, Darwish, MR, Dewolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Vanhaevermaet, H, Vanmechelen, P, Van Remortel, N, Blekman, F, D'Hondt, J, Declercq, J, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Vandoninck, W, Vanmulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, Delentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vandervelde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, Piotrzkowski, K, Saggio, A, Vidalmarono, M, Vischia, P, and Zobec, J
Subjects: CMS, Higgs, Muon, BSM, MSSM, Model independent, hep-ex, Nuclear & Particles Physics, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: A search is performed for neutral non-standard-model Higgs bosons decaying to two muons in the context of the minimal supersymmetric standard model (MSSM). Proton-proton collision data recorded by the CMS experiment at the CERN Large Hadron Collider at a center-of-mass energy of 13TeVwere used, corresponding to an integrated luminosity of 35.9fb-1. The search is sensitive to neutral Higgs bosons produced via the gluon fusion process or in association with a bbquark pair. No significant deviations from the standard model expectation are observed. Upper limits at 95% confidence level are set in the context of the mmod+hand phenomenological MSSM scenarios on the parameter tanβas a function of the mass of the pseudoscalar Aboson, in the range from 130 to 600GeV. The results are also used to set a model-independent limit on the product of the branching fraction for the decay into a muon pair and the cross section for the production of a scalar neutral boson, either via gluon fusion, or in association with bquarks, in the mass range from 130 to 1000GeV.
Published: 2019

26. Measurements of triple-differential cross sections for inclusive isolated-photon+jet events in pp collisions at s=8TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: CMS Collaboration, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: Measurements are presented of the triple-differential cross section for inclusive isolated-photon+jet events in pp collisions at s=8 TeV as a function of photon transverse momentum ( pTγ ), photon pseudorapidity ( ηγ ), and jet pseudorapidity ( ηjet ). The data correspond to an integrated luminosity of 19.7fb-1 that probe a broad range of the available phase space, for |ηγ|
Published: 2019

27. Search for MSSM Higgs bosons decaying to μ+μ− in proton-proton collisions at s = 13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Drugakov, V, Mossolov, V, Gonzalez, J Suarez, Darwish, MR, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, D'Hondt, J, De Clercq, J, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, Piotrzkowski, K, Saggio, A, Marono, M Vidal, Vischia, P, and Zobec, J
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS, Higgs, Muon, BSM, MSSM, Model independent, hep-ex, Mathematical Physics, Astronomical and Space Sciences, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Nuclear & Particles Physics, Mathematical sciences, Physical sciences
Abstract: A search is performed for neutral non-standard-model Higgs bosons decaying to two muons in the context of the minimal supersymmetric standard model (MSSM). Proton-proton collision data recorded by the CMS experiment at the CERN Large Hadron Collider at a center-of-mass energy of 13TeVwere used, corresponding to an integrated luminosity of 35.9fb-1. The search is sensitive to neutral Higgs bosons produced via the gluon fusion process or in association with a bbquark pair. No significant deviations from the standard model expectation are observed. Upper limits at 95% confidence level are set in the context of the mmod+hand phenomenological MSSM scenarios on the parameter tanβas a function of the mass of the pseudoscalar Aboson, in the range from 130 to 600GeV. The results are also used to set a model-independent limit on the product of the branching fraction for the decay into a muon pair and the cross section for the production of a scalar neutral boson, either via gluon fusion, or in association with bquarks, in the mass range from 130 to 1000GeV.
Published: 2019

28. Search for new physics in top quark production in dilepton final states in proton-proton collisions at s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: CMS Collaboration, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: A search for new physics in top quark production is performed in proton-proton collisions at 13TeV . The data set corresponds to an integrated luminosity of 35.9fb-1 collected in 2016 with the CMS detector. Events with two opposite-sign isolated leptons (electrons or muons), and b quark jets in the final state are selected. The search is sensitive to new physics in top quark pair production and in single top quark production in association with a W boson. No significant deviation from the standard model expectation is observed. Results are interpreted in the framework of effective field theory and constraints on the relevant effective couplings are set, one at a time, using a dedicated multivariate analysis. This analysis differs from previous searches for new physics in the top quark sector by explicitly separating tW from tt¯ events and exploiting the specific sensitivity of the tW process to new physics.
Published: 2019

29. Azimuthal separation in nearly back-to-back jet topologies in inclusive 2- and 3-jet events in pp collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: CMS Collaboration, Azimuthal angle, CMS, Jets, MC generators, Physics, QCD, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: A measurement for inclusive 2- and 3-jet events of the azimuthal correlation between the two jets with the largest transverse momenta, Δϕ12 , is presented. The measurement considers events where the two leading jets are nearly collinear ("back-to-back") in the transverse plane and is performed for several ranges of the leading jet transverse momentum. Proton-proton collision data collected with the CMS experiment at a center-of-mass energy of 13Te and corresponding to an integrated luminosity of 35.9fb-1 are used. Predictions based on calculations using matrix elements at leading-order and next-to-leading-order accuracy in perturbative quantum chromodynamics supplemented with leading-log parton showers and hadronization are generally in agreement with the measurements. Discrepancies between the measurement and theoretical predictions are as large as 15%, mainly in the region 177∘
Published: 2019

30. Measurement of exclusive ρ7700 photoproduction in ultraperipheral pPb collisions at sNN=5.02Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Moureaux, L, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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: Exclusive ρ 770 0 photoproduction is measured for the first time in ultraperipheral pPb collisions at s NN = 5.02 Te with the CMS detector. The cross section σ ( γ p → ρ 770 0 p ) is 11.0 ± 1.4 (stat) ± 1.0 (syst) μ b at ⟨ W γ p ⟩ = 92.6 Ge for photon-proton centre-of-mass energies W γ p between 29 and 213 Ge . The differential cross section d σ / d | t | is measured in the interval 0.025 < | t | < 1 Ge 2 as a function of W γ p , where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section σ ( γ p → ρ 770 0 p ) has a power-law dependence on the photon-proton centre-of-mass, consistent with electron-proton collision measurements performed at HERA. The W γ p dependence of the exponential slope of the differential cross section d σ / d | t | is also measured.
Published: 2019

31. Search for a heavy pseudoscalar boson decaying to a Z and a Higgs boson at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: CMS Collaboration, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: A search is presented for a heavy pseudoscalar boson A decaying to a Z boson and a Higgs boson with mass of 125 GeV . In the final state considered, the Higgs boson decays to a bottom quark and antiquark, and the Z boson decays either into a pair of electrons, muons, or neutrinos. The analysis is performed using a data sample corresponding to an integrated luminosity of 35.9 fb-1 collected in 2016 by the CMS experiment at the LHC from proton-proton collisions at a center-of-mass energy of 13 Te . The data are found to be consistent with the background expectations. Exclusion limits are set in the context of two-Higgs-doublet models in the A boson mass range between 225 and 1000 GeV .
Published: 2019

32. Combined measurements of Higgs boson couplings in proton–proton collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, hep-ex, 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: Combined measurements of the production and decay rates of the Higgs boson, as well as its couplings to vector bosons and fermions, are presented. The analysis uses the LHC proton-proton collision data set recorded with the CMS detector in 2016 at s=13Te , corresponding to an integrated luminosity of 35.9 fb-1 . The combination is based on analyses targeting the five main Higgs boson production mechanisms (gluon fusion, vector boson fusion, and associated production with a W or Z boson, or a top quark-antiquark pair) and the following decay modes: H→γγ , ZZ , WW , ττ , bb , and μμ . Searches for invisible Higgs boson decays are also considered. The best-fit ratio of the signal yield to the standard model expectation is measured to be μ=1.17±0.10 , assuming a Higgs boson mass of 125.09Ge . Additional results are given for various assumptions on the scaling behavior of the production and decay modes, including generic parametrizations based on ratios of cross sections and branching fractions or couplings. The results are compatible with the standard model predictions in all parametrizations considered. In addition, constraints are placed on various two Higgs doublet models.
Published: 2019

33. Search for supersymmetry in events with a photon, jets, b-jets, and missing transverse momentum in proton–proton collisions at 13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, Delaere, C, and Delcourt, M
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 search for supersymmetry is presented based on events with at least one photon, jets, and large missing transverse momentum produced in proton-proton collisions at a center-of-mass energy of 13 Te . The data correspond to an integrated luminosity of 35.9 fb-1 and were recorded at the LHC with the CMS detector in 2016. The analysis characterizes signal-like events by categorizing the data into various signal regions based on the number of jets, the number of b -tagged jets, and the missing transverse momentum. No significant excess of events is observed with respect to the expectations from standard model processes. Limits are placed on the gluino and top squark pair production cross sections using several simplified models of supersymmetric particle production with gauge-mediated supersymmetry breaking. Depending on the model and the mass of the next-to-lightest supersymmetric particle, the production of gluinos with masses as large as 2120 Ge and the production of top squarks with masses as large as 1230 Ge are excluded at 95% confidence level.
Published: 2019

34. Measurement of the tt¯ production cross section, the top quark mass, and the strong coupling constant using dilepton events in pp collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 measurement of the top quark-antiquark pair production cross section σ t t ¯ in proton-proton collisions at a centre-of-mass energy of 13 Te is presented. The data correspond to an integrated luminosity of 35.9 fb - 1 , recorded by the CMS experiment at the CERN LHC in 2016. Dilepton events ( e ± μ ∓ , μ + μ - , e + e - ) are selected and the cross section is measured from a likelihood fit. For a top quark mass parameter in the simulation of m t MC = 172.5 Ge the fit yields a measured cross section σ t t ¯ = 803 ± 2 (stat) ± 25 (syst) ± 20 (lumi) pb , in agreement with the expectation from the standard model calculation at next-to-next-to-leading order. A simultaneous fit of the cross section and the top quark mass parameter in the powheg simulation is performed. The measured value of m t MC = 172.33 ± 0.14 (stat) - 0.72 + 0.66 (syst) Ge is in good agreement with previous measurements. The resulting cross section is used, together with the theoretical prediction, to determine the top quark mass and to extract a value of the strong coupling constant with different sets of parton distribution functions.
Published: 2019

35. Search for vector-like quarks in events with two oppositely charged leptons and jets in proton–proton collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, Delaere, C, and Delcourt, M
Subjects: CMS Collaboration, hep-ex, 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 search for the pair production of heavy vector-like partners T and B of the top and bottom quarks has been performed by the CMS experiment at the CERN LHC using proton-proton collisions at s=13Te . The data sample was collected in 2016 and corresponds to an integrated luminosity of 35.9 fb-1 . Final states studied for TT¯ production include those where one of the T quarks decays via T→tZ and the other via T→bW , tZ , or tH , where H is a Higgs boson. For the BB¯ case, final states include those where one of the B quarks decays via B→bZ and the other B→tW , bZ , or bH . Events with two oppositely charged electrons or muons, consistent with coming from the decay of a Z boson, and jets are investigated. The number of observed events is consistent with standard model background estimations. Lower limits at 95% confidence level are placed on the masses of the T and B quarks for a range of branching fractions. Assuming 100% branching fractions for T→tZ , and B→bZ , T and B quark mass values below 1280 and 1130 Ge , respectively, are excluded.
Published: 2019

36. Measurement of the top quark mass in the all-jets final state at s=13TeV and combination with the lepton+jets channel

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, and Giammanco, A
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 top quark mass measurement is performed using 35.9 fb - 1 of LHC proton-proton collision data collected with the CMS detector at s = 13 TeV . The measurement uses the t t ¯ all-jets final state. A kinematic fit is performed to reconstruct the decay of the t t ¯ system and suppress the multijet background. Using the ideogram method, the top quark mass ( m t ) is determined, simultaneously constraining an additional jet energy scale factor ( JSF ). The resulting value of m t = 172.34 ± 0.20 (stat+JSF) ± 0.70 (syst) GeV is in good agreement with previous measurements. In addition, a combined measurement that uses the t t ¯ lepton+jets and all-jets final states is presented, using the same mass extraction method, and provides an m t measurement of 172.26 ± 0.07 (stat+JSF) ± 0.61 (syst) GeV . This is the first combined m t extraction from the lepton+jets and all-jets channels through a single likelihood function.
Published: 2019

37. Search for resonant production of second-generation sleptons with same-sign dimuon events in proton–proton collisions at s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 search is presented for resonant production of second-generation sleptons ( μ ~ L , ν ~ μ ) via the R-parity-violating coupling λ 211 ' to quarks, in events with two same-sign muons and at least two jets in the final state. The smuon (muon sneutrino) is expected to decay into a muon and a neutralino (chargino), which will then decay into a second muon and at least two jets. The analysis is based on the 2016 data set of proton-proton collisions at s = 13 TeV recorded with the CMS detector at the LHC, corresponding to an integrated luminosity of 35.9 fb - 1 . No significant deviation is observed with respect to standard model expectations. Upper limits on cross sections, ranging from 0.24 to 730 fb , are derived in the context of two simplified models representing the dominant signal contributions leading to a same-sign muon pair. The cross section limits are translated into coupling limits for a modified constrained minimal supersymmetric model with λ 211 ' as the only nonzero R-parity violating coupling. The results significantly extend restrictions of the parameter space compared with previous searches for similar models.
Published: 2019

38. Erratum to: Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at s = 13 TeV (Journal of High Energy Physics, (2018), 2018, 6, (127), 10.1007/JHEP06(2018)127)

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Friedl, M, Frühwirth, R, Ghete, VM, Grossmann, J, Hrubec, J, Jeitler, M, König, A, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Pree, E, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, CE, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Seva, T, Starling, E, Vander Velde, C, Vanlaer, P, Vannerom, D, Yonamine, R, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, and Zaganidis, N
Subjects: Mathematical Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics
Abstract: In both panels of figure 11, the unit of the z axis was mistakenly written as “pb” when it should have been “fb”. The corrected versions are shown in figure 1.
Published: 2019

39. Erratum to: Search for a new scalar resonance decaying to a pair of Z bosons in proton-proton collisions at s=13 TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Friedl, M, Frühwirth, R, Ghete, VM, Grossmann, J, Hrubec, J, Jeitler, M, König, A, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Pree, E, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Seva, T, Starling, E, Vander Velde, C, Vanlaer, P, Vannerom, D, Yonamine, R, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, and Zaganidis, N
Subjects: Particle and High Energy Physics, Physical Sciences, 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: In both panels of figure 11, the unit of the z axis was mistakenly written as “pb” when it should have been “fb”. The corrected versions are shown in figure 1.
Published: 2019

40. Measurement of associated production of a W boson and a charm quark in proton–proton collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Escalante Del Valle, A, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Suarez Gonzalez, J, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Abu Zeid, S, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Vander Velde, C, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 are presented of associated production of a W boson and a charm quark ( W + c ) in proton-proton collisions at a center-of-mass energy of 13 Te . The data correspond to an integrated luminosity of 35.7 fb - 1 collected by the CMS experiment at the CERN LHC. The W bosons are identified by their decay into a muon and a neutrino. The charm quarks are tagged via the full reconstruction of D ∗ ( 2010 ) ± mesons that decay via D ∗ ( 2010 ) ± → D 0 + π ± → K ∓ + π ± + π ± . A cross section is measured in the fiducial region defined by the muon transverse momentum p T μ > 26 Ge , muon pseudorapidity | η μ | < 2.4 , and charm quark transverse momentum p T c > 5 Ge . The inclusive cross section for this kinematic range is σ ( W + c ) = 1026 ± 31 (stat) + 76 - 72 (syst) pb . The cross section is also measured differentially as a function of the pseudorapidity of the muon from the W boson decay. These measurements are compared with theoretical predictions and are used to probe the strange quark content of the proton.
Published: 2019

41. Search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks in proton–proton collisions at s=13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 search for dark matter produced in association with a Higgs boson decaying to a pair of bottom quarks is performed in proton-proton collisions at a center-of-mass energy of 13 Te collected with the CMS detector at the LHC. The analyzed data sample corresponds to an integrated luminosity of 35.9 fb - 1 . The signal is characterized by a large missing transverse momentum recoiling against a bottom quark-antiquark system that has a large Lorentz boost. The number of events observed in the data is consistent with the standard model background prediction. Results are interpreted in terms of limits both on parameters of the type-2 two-Higgs doublet model extended by an additional light pseudoscalar boson a (2HDM+ a ) and on parameters of a baryonic Z ' simplified model. The 2HDM+ a model is tested experimentally for the first time. For the baryonic Z ' model, the presented results constitute the most stringent constraints to date.
Published: 2019

42. Measurement of exclusive Υ photoproduction from protons in pPb collisions at sNN=5.02TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Friedl, M, Frühwirth, R, Ghete, VM, Grossmann, J, Hrubec, J, Jeitler, M, König, A, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Pree, E, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Seva, T, Starling, E, Velde, C Vander, Vanlaer, P, Vannerom, D, Yonamine, R, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, and Bakhshiansohi, H
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS, UPC, photoproduction, Y, pPb, CMS Collaboration, hep-ex, 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 exclusive photoproduction of Υ(nS) meson states from protons, γp→Υ(nS)p (with n=1,2,3 ), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of sNN=5.02TeV . The measurement is performed using the Υ(nS)→μ+μ- decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6 nb-1 . Differential cross sections as functions of the Υ(nS) transverse momentum squared pT2 , and rapidity y, are presented. The Υ(1S) photoproduction cross section is extracted in the rapidity range |y|
Published: 2019

43. Study of the underlying event in top quark pair production in pp collisions at 13Te

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. The measurements are performed in proton-proton collisions at a center-of-mass energy of 13 Te , and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9 fb - 1 . Events containing one electron, one muon, and two jets from the hadronization and fragmentation of b quarks are used. These measurements characterize, for the first time, properties of the underlying event in top quark pair production and show no deviation from the universality hypothesis at energy scales typically above twice the top quark mass.
Published: 2019

44. Search for rare decays of Z and Higgs bosons to J/ψ and a photon in proton-proton collisions at s = 13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, and David, P
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 search is presented for decays of Z and Higgs bosons to a J / ψ meson and a photon, with the subsequent decay of the J / ψ to μ + μ - . The analysis uses data from proton-proton collisions with an integrated luminosity of 35.9 fb - 1 at s = 13 TeV collected with the CMS detector at the LHC. The observed limit on the Z → J / ψ γ decay branching fraction, assuming that the J / ψ meson is produced unpolarized, is 1.4 × 10 - 6 at 95% confidence level, which corresponds to a rate higher than expected in the standard model by a factor of 15. For extreme-polarization scenarios, the observed limit changes from - 13.6 to + 8.6 % with respect to the unpolarized scenario. The observed upper limit on the branching fraction for H → J / ψ γ where the J / ψ meson is assumed to be transversely polarized is 7.6 × 10 - 4 , a factor of 260 larger than the standard model prediction. The results for the Higgs boson are combined with previous data from proton-proton collisions at s = 8 TeV to produce an observed upper limit on the branching fraction for H → J / ψ γ that is a factor of 220 larger than the standard model value.
Published: 2019

45. Search for single production of vector-like quarks decaying to a top quark and a W boson in proton–proton collisions at s=13TeV

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D’Hondt, J, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, Bruno, G, Caputo, C, David, P, and Delaere, C
Subjects: Nuclear and Plasma Physics, Particle and High Energy Physics, Physical Sciences, CMS Collaboration, hep-ex, 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 search is presented for the single production of vector-like quarks in proton-proton collisions at s=13TeV . The data, corresponding to an integrated luminosity of 35.9 fb-1 , were recorded with the CMS experiment at the LHC. The analysis focuses on the vector-like quark decay into a top quark and a W boson, with one muon or electron in the final state. The mass of the vector-like quark candidate is reconstructed from hadronic jets, the lepton, and the missing transverse momentum. Methods for the identification of b quarks and of highly Lorentz boosted hadronically decaying top quarks and W bosons are exploited in this search. No significant deviation from the standard model background expectation is observed. Exclusion limits at 95% confidence level are set on the product of the production cross section and branching fraction as a function of the vector-like quark mass, which range from 0.3 to 0.03 pb for vector-like quark masses of 700 to 2000 GeV . Mass exclusion limits up to 1660 GeV are obtained, depending on the vector-like quark type, coupling, and decay width. These represent the most stringent exclusion limits for the single production of vector-like quarks in this channel.
Published: 2019

46. Measurement of differential cross sections for inclusive isolated-photon and photon+jet production in proton-proton collisions at s=13TeV.

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: CMS Collaboration, hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: Measurements of inclusive isolated-photon and photon+jet production in proton-proton collisions at s=13TeV are presented. The analysis uses data collected by the CMS experiment in 2015, corresponding to an integrated luminosity of 2.26 fb-1 . The cross section for inclusive isolated photon production is measured as a function of the photon transverse energy in a fiducial region. The cross section for photon+jet production is measured as a function of the photon transverse energy in the same fiducial region with identical photon requirements and with the highest transverse momentum jet. All measurements are in agreement with predictions from next-to-leading-order perturbative QCD.
Published: 2019

47. Measurement of the average very forward energy as a function of the track multiplicity at central pseudorapidities in proton-proton collisions at s=13TeV.

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Drugakov, V, Mossolov, V, Gonzalez, J Suarez, Darwish, MR, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Lelek, A, Pieters, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Blekman, F, Chhibra, SS, D'Hondt, J, De Clercq, J, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Favart, L, Grebenyuk, A, Kalsi, AK, Luetic, J, Popov, A, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bondu, O, Bruno, G, Caputo, C, David, P, Delaere, C, Delcourt, M, Giammanco, A, Krintiras, G, Lemaitre, V, Magitteri, A, Piotrzkowski, K, Prisciandaro, J, Saggio, A, and Marono, M Vidal
Subjects: CMS Collaboration, hep-ex, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics, Nuclear & Particles Physics
Abstract: The average total energy as well as its hadronic and electromagnetic components are measured with the CMS detector at pseudorapidities -6.6
Published: 2019

48. Measurement of exclusive Υ photoproduction from protons in p Pb collisions at s NN = 5.02 TeV.

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Brondolin, E, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Friedl, M, Frühwirth, R, Ghete, VM, Grossmann, J, Hrubec, J, Jeitler, M, König, A, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Pree, E, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Seva, T, Starling, E, Velde, C Vander, Vanlaer, P, Vannerom, D, Yonamine, R, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, and Bakhshiansohi, H
Subjects: CMS Collaboration, CMS, UPC, Y, pPb, photoproduction, Rare Diseases, hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: The exclusive photoproduction of Υ ( nS ) meson states from protons, γ p → Υ ( nS ) p (with n = 1 , 2 , 3 ), is studied in ultraperipheral p Pb collisions at a centre-of-mass energy per nucleon pair of s NN = 5.02 TeV . The measurement is performed using the Υ ( nS ) → μ + μ - decay mode, with data collected by the CMS experiment corresponding to an integrated luminosity of 32.6 nb - 1 . Differential cross sections as functions of the Υ ( nS ) transverse momentum squared p T 2 , and rapidity y, are presented. The Υ ( 1 S ) photoproduction cross section is extracted in the rapidity range | y | < 2.2 , which corresponds to photon-proton centre-of-mass energies in the range 91 < W γ p < 826 GeV . The data are compared to theoretical predictions based on perturbative quantum chromodynamics and to previous measurements.
Published: 2019

49. Measurement of exclusive ρ 770 0 photoproduction in ultraperipheral pPb collisions at s NN = 5.02 Te .

Author: Sirunyan, AM, Tumasyan, A, Adam, W, Ambrogi, F, Asilar, E, Bergauer, T, Brandstetter, J, Dragicevic, M, Erö, J, Del Valle, A Escalante, Flechl, M, Frühwirth, R, Ghete, VM, Hrubec, J, Jeitler, M, Krammer, N, Krätschmer, I, Liko, D, Madlener, T, Mikulec, I, Rad, N, Rohringer, H, Schieck, J, Schöfbeck, R, Spanring, M, Spitzbart, D, Taurok, A, Waltenberger, W, Wittmann, J, Wulz, C-E, Zarucki, M, Chekhovsky, V, Mossolov, V, Gonzalez, J Suarez, De Wolf, EA, Di Croce, D, Janssen, X, Lauwers, J, Pieters, M, Van De Klundert, M, Van Haevermaet, H, Van Mechelen, P, Van Remortel, N, Zeid, S Abu, Blekman, F, D'Hondt, J, De Bruyn, I, De Clercq, J, Deroover, K, Flouris, G, Lontkovskyi, D, Lowette, S, Marchesini, I, Moortgat, S, Moreels, L, Python, Q, Skovpen, K, Tavernier, S, Van Doninck, W, Van Mulders, P, Van Parijs, I, Beghin, D, Bilin, B, Brun, H, Clerbaux, B, De Lentdecker, G, Delannoy, H, Dorney, B, Fasanella, G, Favart, L, Goldouzian, R, Grebenyuk, A, Kalsi, AK, Lenzi, T, Luetic, J, Moureaux, L, Postiau, N, Starling, E, Thomas, L, Velde, C Vander, Vanlaer, P, Vannerom, D, Wang, Q, Cornelis, T, Dobur, D, Fagot, A, Gul, M, Khvastunov, I, Poyraz, D, Roskas, C, Trocino, D, Tytgat, M, Verbeke, W, Vermassen, B, Vit, M, Zaganidis, N, Bakhshiansohi, H, Bondu, O, Brochet, S, and Bruno, G
Subjects: CMS Collaboration, hep-ex, Nuclear & Particles Physics, Atomic, Molecular, Nuclear, Particle and Plasma Physics, Quantum Physics
Abstract: Exclusive ρ 770 0 photoproduction is measured for the first time in ultraperipheral pPb collisions at s NN = 5.02 Te with the CMS detector. The cross section σ ( γ p → ρ 770 0 p ) is 11.0 ± 1.4 (stat) ± 1.0 (syst) μ b at ⟨ W γ p ⟩ = 92.6 Ge for photon-proton centre-of-mass energies W γ p between 29 and 213 Ge . The differential cross section d σ / d | t | is measured in the interval 0.025 < | t | < 1 Ge 2 as a function of W γ p , where t is the squared four-momentum transfer at the proton vertex. The results are compared with previous measurements and theoretical predictions. The measured cross section σ ( γ p → ρ 770 0 p ) has a power-law dependence on the photon-proton centre-of-mass, consistent with electron-proton collision measurements performed at HERA. The W γ p dependence of the exponential slope of the differential cross section d σ / d | t | is also measured.
Published: 2019

50. Erratum: Measurement of prompt and nonprompt charmonium suppression in PbPb collisions at 5.02 TeV

Author: Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J., Brondolin, E., Dragicevic, M., Erö, J., Valle, A. Escalante Del, Flechl, M., Friedl, M., Frühwirth, R., Ghete, V. M., Grossmann, J., Hrubec, J., Jeitler, M., König, A., Krammer, N., Krätschmer, I., Liko, D., Madlener, T., Mikulec, I., Pree, E., Rad, N., Rohringer, H., Schieck, J., Schöfbeck, R., Spanring, M., Spitzbart, D., Waltenberger, W., Wittmann, J., Wulz, C.-E., Zarucki, M., Chekhovsky, V., Mossolov, V., Gonzalez, J. Suarez, De Wolf, E. A., Croce, D. Di, Janssen, X., Lauwers, J., De Klundert, M. Van, Haevermaet, H. Van, Mechelen, P. Van, Remortel, N. Van, Zeid, S. Abu, Blekman, F., D’Hondt, J., De Bruyn, I., De Clercq, J., Deroover, K., Flouris, G., Lontkovskyi, D., Lowette, S., Marchesini, I., Moortgat, S., Moreels, L., Python, Q., Skovpen, K., Tavernier, S., Doninck, W. Van, Mulders, P. Van, Parijs, I. Van, Beghin, D., Bilin, B., Brun, H., Clerbaux, B., De Lentdecker, G., Delannoy, H., Dorney, B., Fasanella, G., Favart, L., Goldouzian, R., Grebenyuk, A., Kalsi, A. K., Lenzi, T., Luetic, J., Maerschalk, T., Marinov, A., Seva, T., Starling, E., Velde, C. Vander, Vanlaer, P., Vannerom, D., Yonamine, R., Zenoni, F., Cornelis, T., Dobur, D., Fagot, A., Gul, M., Khvastunov, I., Poyraz, D., Roskas, C., Salva, S., Tytgat, M., Verbeke, W., Zaganidis, N., Bakhshiansohi, H., Bondu, O., Brochet, S., Bruno, G., Caputo, C., Caudron, A., David, P., De Visscher, S., Delaere, C., Delcourt, M., Francois, B., Giammanco, A., Komm, M., Krintiras, G., Lemaitre, V., Magitteri, A., Mertens, A., Musich, M., Piotrzkowski, K., Quertenmont, L., Saggio, A., Marono, M. Vidal, Wertz, S., Zobec, J., Júnior, W. L. Aldá, Alves, F. L., Alves, G. A., Brito, L., Junior, M. Correa Martins, Hensel, C., Moraes, A., Pol, M. E., Teles, P. Rebello, Chagas, E. Belchior Batista Das, Carvalho, W., Chinellato, J., Coelho, E., Da Costa, E. M., Da Silveira, G. G., De Jesus Damiao, D., De Souza, S. Fonseca, Guativa, L. M. Huertas, Malbouisson, H., De Almeida, M. Melo, Herrera, C. Mora, Mundim, L., Nogima, H., Rosas, L. J. Sanchez, Santoro, A., Sznajder, A., Thiel, M., Manganote, E. J. Tonelli, Da Silva De Araujo, F. Torres, Pereira, A. Vilela, Ahuja, S., Bernardes, C. A., Tomei, T. R. Fernandez Perez, Gregores, E. M., Mercadante, P. G., Novaes, S. F., Padula, Sandra S., Abad, D. Romero, Vargas, J. C. Ruiz, Aleksandrov, A., Hadjiiska, R., Iaydjiev, P., Misheva, M., Rodozov, M., Shopova, M., Sultanov, G., Dimitrov, A., Litov, L., Pavlov, B., Petkov, P., Fang, W., Gao, X., Yuan, L., Ahmad, M., Bian, J. G., Chen, G. M., Chen, H. S., Chen, M., Chen, Y., Jiang, C. H., Leggat, D., Liao, H., Liu, Z., Romeo, F., Shaheen, S. M., Spiezia, A., Tao, J., Wang, C., Wang, Z., Yazgan, E., Zhang, H., Zhang, S., Zhao, J., Ban, Y., Chen, G., Li, J., Li, Q., Liu, S., Mao, Y., Qian, S. J., Wang, D., Xu, Z., Zhang, F., Wang, Y., Avila, C., Cabrera, A., Montoya, C. A. Carrillo, Sierra, L. F. Chaparro, Florez, C., Hernández, C. F. González, Alvarez, J. D. Ruiz, Delgado, M. A. Segura, Courbon, B., Godinovic, N., Lelas, D., Puljak, I., Cipriano, P. M. Ribeiro, Sculac, T., Antunovic, Z., Kovac, M., Brigljevic, V., Ferencek, D., Kadija, K., Mesic, B., Starodumov, A., Susa, T., Ather, M. W., Attikis, A., Mavromanolakis, G., Mousa, J., Nicolaou, C., Ptochos, F., Razis, P. A., Rykaczewski, H., Finger, M., Finger, Jr., M., Jarrin, E. Carrera, Mahmoud, M. A., Mohammed, Y., Salama, E., Dewanjee, R. K., Kadastik, M., Perrini, L., Raidal, M., Tiko, A., Veelken, C., Eerola, P., Kirschenmann, H., Pekkanen, J., Voutilainen, M., Havukainen, J., Heikkilä, J. K., Järvinen, T., Karimäki, V., Kinnunen, R., Lampén, T., Lassila-Perini, K., Laurila, S., Lehti, S., Lindén, T., Luukka, P., Siikonen, H., Tuominen, E., Tuominiemi, J., Tuuva, T., Besancon, M., Couderc, F., Dejardin, M., Denegri, D., Faure, J. L., Ferri, F., Ganjour, S., Ghosh, S., Gras, P., de Monchenault, G. Hamel, Jarry, P., Kucher, I., Leloup, C., Locci, E., Machet, M., Malcles, J., Negro, G., Rander, J., Rosowsky, A., Sahin, M.Ö., Titov, M., Abdulsalam, A., Amendola, C., Antropov, I., Baffioni, S., Beaudette, F., Busson, P., Cadamuro, L., Charlot, C., de Cassagnac, R. Granier, Jo, M., Lisniak, S., Lobanov, A., Blanco, J. Martin, Nguyen, M., Ochando, C., Ortona, G., Paganini, P., Pigard, P., Salerno, R., Sauvan, J. B., Sirois, Y., Leiton, A. G. Stahl, Strebler, T., Yilmaz, Y., Zabi, A., Zghiche, A., Agram, J.-L., Andrea, J., Bloch, D., Brom, J.-M., Buttignol, M., Chabert, E. C., Chanon, N., Collard, C., Conte, E., Coubez, X., Fontaine, J.-C., Gelé, D., Goerlach, U., Jansová, M., Bihan, A.-C. Le, Tonon, N., Hove, P. Van, Gadrat, S., Beauceron, S., Bernet, C., Boudoul, G., Chierici, R., Contardo, D., Depasse, P., Mamouni, H. El, Fay, J., Finco, L., Gascon, S., Gouzevitch, M., Grenier, G., Ille, B., Lagarde, F., Laktineh, I. B., Lethuillier, M., Mirabito, L., Pequegnot, A. L., Perries, S., Popov, A., Sordini, V., Donckt, M. Vander, Viret, S., Toriashvili, T., Tsamalaidze, Z., Autermann, C., Feld, L., Kiesel, M. K., Klein, K., Lipinski, M., Preuten, M., Schomakers, C., Schulz, J., Teroerde, M., Zhukov, V., Albert, A., Dietz-Laursonn, E., Duchardt, D., Endres, M., Erdmann, M., Erdweg, S., Esch, T., Fischer, R., Güth, A., Hamer, M., Hebbeker, T., Heidemann, C., Hoepfner, K., Knutzen, S., Merschmeyer, M., Meyer, A., Millet, P., Mukherjee, S., Pook, T., Radziej, M., Reithler, H., Rieger, M., Scheuch, F., Teyssier, D., Thüer, S., Flügge, G., Kargoll, B., Kress, T., Künsken, A., Müller, T., Nehrkorn, A., Nowack, A., Pistone, C., Pooth, O., Stahl, A., Martin, M. Aldaya, Arndt, T., Asawatangtrakuldee, C., Beernaert, K., Behnke, O., Behrens, U., Martínez, A. Bermúdez, Anuar, A. A. Bin, Borras, K., Botta, V., Campbell, A., Connor, P., Contreras-Campana, C., Costanza, F., Pardos, C. Diez, Eckerlin, G., Eckstein, D., Eichhorn, T., Eren, E., Gallo, E., Garcia, J. Garay, Geiser, A., Luyando, J. M. Grados, Grohsjean, A., Gunnellini, P., Guthoff, M., Harb, A., Hauk, J., Hempel, M., Jung, H., Kasemann, M., Keaveney, J., Kleinwort, C., Korol, I., Krücker, D., Lange, W., Lelek, A., Lenz, T., Leonard, J., Lipka, K., Lohmann, W., Mankel, R., Melzer-Pellmann, I.-A., Meyer, A. B., Mittag, G., Mnich, J., Mussgiller, A., Ntomari, E., Pitzl, D., Raspereza, A., Savitskyi, M., Saxena, P., Shevchenko, R., Stefaniuk, N., Onsem, G. P. Van, Walsh, R., Wen, Y., Wichmann, K., Wissing, C., Zenaiev, O., Aggleton, R., Bein, S., Blobel, V., Vignali, M. Centis, Dreyer, T., Garutti, E., Gonzalez, D., Haller, J., Hinzmann, A., Hoffmann, M., Karavdina, A., Klanner, R., Kogler, R., Kovalchuk, N., Kurz, S., Lapsien, T., Marconi, D., Meyer, M., Niedziela, M., Nowatschin, D., Pantaleo, F., Peiffer, T., Perieanu, A., Scharf, C., Schleper, P., Schmidt, A., Schumann, S., Schwandt, J., Sonneveld, J., Stadie, H., Steinbrück, G., Stober, F. M., Stöver, M., Tholen, H., Troendle, D., Usai, E., Vanhoefer, A., Vormwald, B., Akbiyik, M., Barth, C., Baselga, M., Baur, S., Butz, E., Caspart, R., Chwalek, T., Colombo, F., De Boer, W., Dierlamm, A., Faltermann, N., Freund, B., Friese, R., Giffels, M., Harrendorf, M. A., Hartmann, F., Heindl, S. M., Husemann, U., Kassel, F., Kudella, S., Mildner, H., Mozer, M. U., Müller, Th., Plagge, M., Quast, G., Rabbertz, K., Schröder, M., Shvetsov, I., Sieber, G., Simonis, H. J., Ulrich, R., Wayand, S., Weber, M., Weiler, T., Williamson, S., Wöhrmann, C., Wolf, R., Anagnostou, G., Daskalakis, G., Geralis, T., Kyriakis, A., Loukas, D., Topsis-Giotis, I., Karathanasis, G., Kesisoglou, S., Panagiotou, A., Saoulidou, N., Kousouris, K., Evangelou, I., Foudas, C., Gianneios, P., Katsoulis, P., Kokkas, P., Mallios, S., Manthos, N., Papadopoulos, I., Paradas, E., Strologas, J., Triantis, F. A., Tsitsonis, D., Csanad, M., Filipovic, N., Pasztor, G., Surányi, O., Veres, G. I., Bencze, G., Hajdu, C., Horvath, D., Hunyadi, Á., Sikler, F., Veszpremi, V., Beni, N., Czellar, S., Karancsi, J., Makovec, A., Molnar, J., Szillasi, Z., Bartók, M., Raics, P., Trocsanyi, Z. L., Ujvari, B., Choudhury, S., Komaragiri, J. R., Bahinipati, S., Bhowmik, S., Mal, P., Mandal, K., Nayak, A., Sahoo, D. K., Sahoo, N., Swain, S. K., Bansal, S., Beri, S. B., Bhatnagar, V., Chawla, R., Dhingra, N., Kaur, A., Kaur, M., Kaur, S., Kumar, R., Kumari, P., Mehta, A., Singh, J. B., Walia, G., Kumar, Ashok, Shah, Aashaq, Bhardwaj, A., Chauhan, S., Choudhary, B. C., Garg, R. B., Keshri, S., Kumar, A., Malhotra, S., Naimuddin, M., Ranjan, K., Sharma, R., Bhardwaj, R., Bhattacharya, R., Bhattacharya, S., Bhawandeep, U., Dey, S., Dutt, S., Dutta, S., Ghosh, S., Majumdar, N., Modak, A., Mondal, K., Mukhopadhyay, S., Nandan, S., Purohit, A., Roy, A., Chowdhury, S. Roy, Sarkar, S., Sharan, M., Thakur, S., Behera, P. K., Chudasama, R., Dutta, D., Jha, V., Kumar, V., Mohanty, A. 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M., Evans, A., Hansen, P., Hiltbrand, J., Kalafut, S., Kubota, Y., Lesko, Z., Mans, J., Nourbakhsh, S., Ruckstuhl, N., Rusack, R., Turkewitz, J., Wadud, M. A., Acosta, J. G., Oliveros, S., Avdeeva, E., Bloom, K., Claes, D. R., Fangmeier, C., Golf, F., Suarez, R. Gonzalez, Kamalieddin, R., Kravchenko, I., Monroy, J., Siado, J. E., Snow, G. R., Stieger, B., Dolen, J., Godshalk, A., Harrington, C., Iashvili, I., Nguyen, D., Parker, A., Rappoccio, S., Roozbahani, B., Alverson, G., Barberis, E., Freer, C., Hortiangtham, A., Massironi, A., Morse, D. M., Orimoto, T., De Lima, R. Teixeira, Trocino, D., Wamorkar, T., Wang, B., Wisecarver, A., Wood, D., Bhattacharya, S., Charaf, O., Hahn, K. A., Mucia, N., Odell, N., Schmitt, M. H., Sung, K., Trovato, M., Velasco, M., Bucci, R., Dev, N., Hildreth, M., Anampa, K. Hurtado, Jessop, C., Karmgard, D. J., Kellams, N., Lannon, K., Li, W., Loukas, N., Marinelli, N., Meng, F., Mueller, C., Musienko, Y., Planer, M., Reinsvold, A., Ruchti, R., Siddireddy, P., Smith, G., Taroni, S., Wayne, M., Wightman, A., Wolf, M., Woodard, A., Alimena, J., Antonelli, L., Bylsma, B., Durkin, L. S., Flowers, S., Francis, B., Hart, A., Hill, C., Ji, W., Liu, B., Luo, W., Winer, B. L., Wulsin, H. W., Cooperstein, S., Driga, O., Elmer, P., Hardenbrook, J., Hebda, P., Higginbotham, S., Kalogeropoulos, A., Lange, D., Luo, J., Marlow, D., Mei, K., Ojalvo, I., Olsen, J., Palmer, C., Piroué, P., Stickland, D., Tully, C., Malik, S., Norberg, S., Barker, A., Barnes, V. E., Das, S., Folgueras, S., Gutay, L., Jha, M. K., Jones, M., Jung, A. W., Khatiwada, A., Miller, D. H., Neumeister, N., Peng, C. C., Qiu, H., Schulte, J. F., Sun, J., Wang, F., Xiao, R., Xie, W., Cheng, T., Parashar, N., Stupak, J., Chen, Z., Ecklund, K. M., Freed, S., Geurts, F. J. M., Guilbaud, M., Kilpatrick, M., Li, W., Michlin, B., Padley, B. P., Roberts, J., Rorie, J., Shi, W., Tu, Z., Zabel, J., Zhang, A., Bodek, A., de Barbaro, P., Demina, R., Duh, Y. t., Ferbel, T., Galanti, M., Garcia-Bellido, A., Han, J., Hindrichs, O., Khukhunaishvili, A., Lo, K. H., Tan, P., Verzetti, M., Ciesielski, R., Goulianos, K., Mesropian, C., Agapitos, A., Chou, J. P., Gershtein, Y., Espinosa, T. A. Gómez, Halkiadakis, E., Heindl, M., Hughes, E., Kaplan, S., Elayavalli, R. Kunnawalkam, Kyriacou, S., Lath, A., Montalvo, R., Nash, K., Osherson, M., Saka, H., Salur, S., Schnetzer, S., Sheffield, D., Somalwar, S., Stone, R., Thomas, S., Thomassen, P., Walker, M., Delannoy, A. G., Heideman, J., Riley, G., Rose, K., Spanier, S., Thapa, K., Bouhali, O., Hernandez, A. Castaneda, Celik, A., Dalchenko, M., De Mattia, M., Delgado, A., Dildick, S., Eusebi, R., Gilmore, J., Huang, T., Kamon, T., Mueller, R., Pakhotin, Y., Patel, R., Perloff, A., Perniè, L., Rathjens, D., Safonov, A., Tatarinov, A., Ulmer, K. A., Akchurin, N., Damgov, J., De Guio, F., Dudero, P. R., Faulkner, J., Gurpinar, E., Kunori, S., Lamichhane, K., Lee, S. W., Libeiro, T., Mengke, T., Muthumuni, S., Peltola, T., Undleeb, S., Volobouev, I., Wang, Z., Greene, S., Gurrola, A., Janjam, R., Johns, W., Maguire, C., Melo, A., Ni, H., Padeken, K., Sheldon, P., Tuo, S., Velkovska, J., Xu, Q., Arenton, M. W., Barria, P., Cox, B., Hirosky, R., Joyce, M., Ledovskoy, A., Li, H., Neu, C., Sinthuprasith, T., Wang, Y., Wolfe, E., Xia, F., Harr, R., Karchin, P. E., Poudyal, N., Sturdy, J., Thapa, P., Zaleski, S., Brodski, M., Buchanan, J., Caillol, C., Dasu, S., Dodd, L., Duric, S., Gomber, B., Grothe, M., Herndon, M., Hervé, A., Hussain, U., Klabbers, P., Lanaro, A., Levine, A., Long, K., Loveless, R., Ruggles, T., Savin, A., Smith, N., Smith, W. H., Taylor, D., and Woods, N.
Published: 2023
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