Dog-appeasing pheromone collars reduce sound-induced fear and anxiety in beagle dogs: a placebo-controlled study

The objective of the study was to assess the effects of a dog-appeasing pheromone (DAP) collar in reducing sound-induced fear and anxiety in a laboratory model of thunderstorm simulation. Twenty-four beagle dogs naïve to the current test were divided into two treatment groups (DAP and placebo) balanced on their fear score in response to a thunderstorm recording. Each group was then exposed to two additional thunderstorm simulation tests on consecutive days. Dogs were video-assessed by a trained observer on a 6-point scale for active, passive and global fear and anxiety (combined). Both global and active fear and anxiety scores were significantly improved during and following thunder compared with placebo on both test days. DAP significantly decreased global fear and anxiety across ‘during’ and ‘post’ thunder times when compared with baseline. There was no significant improvement in the placebo group from baseline on the test days. In addition, the DAP group showed significantly greater use of the hide box at any time with increased exposure compared with the placebo group. The DAP collar reduced the scores of fear and anxiety, and increased hide use in response to a thunder recording, possibly by counteracting noise-related increased reactivity.

Gender differences in cadmium and cotinine levels in prepubertal children

Susceptibility to environmental stressors has been described for fetal and early childhood development. However, the possible susceptibility of the prepubertal period, characterized by the orchestration of the organism towards sexual maturation and adulthood has been poorly investigated and exposure data are scarce. In the current study levels of cadmium (Cd), cotinine and creatinine in urine were analyzed in a subsample 216 children from 12 European countries within the DEMOCOPHES project. The children were divided into six age-sex groups: boys (6-8 years, 9-10 years and 11 years old), and girls (6-7 years, 8-9 years, 10-11 years). The number of subjects per group was between 23 and 53. The cut off values were set at 0.1 µg/L for Cd, and 0.8 µg/L for cotinine defined according to the highest limit of quantification. The levels of Cd and cotinine were adjusted for creatinine level. In the total subsample group, the median level of Cd was 0.180 µg/L (range 0.10-0.69 µg/L), and for cotinine the median wet weight value was 1.50 µg/L (range 0.80-39.91 µg/L). There was no significant difference in creatinine and cotinine levels between genders and age groups. There was a significant correlation between levels of cadmium and creatinine in all children of both genders. This shows that even at such low levels the possible effect of cadmium on kidney function was present and measurable. An increase in Cd levels was evident with age. Cadmium levels were significantly different between 6-7 year old girls, 11 year old boys and 10-11 year old girls. As there was a balanced distribution in the number of subjects from countries included in the study, bias due to data clustering was not probable. The impact of low Cd levels on kidney function and gender differences in Cd levels needs further investigation.

Unexploited potential of some biotechnological techniques for biofertilizer production and formulation

The massive application of chemical fertilizers to support crop production has resulted in soil, water, and air pollution at a global scale. In the same time, this situation escalated consumers' concerns regarding quality and safety of food production which, due to increase of fertilizer prices, have provoked corresponding price increase of food products. It is widely accepted that the only solution is to boost exploitation of plant-beneficial microorganisms which in conditions of undisturbed soils play a key role in increasing the availability of minerals that otherwise are inaccessible to plants. This review paper is focused on the employment of microbial inoculants and their production and formulation. Special attention is given to biotechniques that are not fully exploited as tools for biofertilizer manufacturing such as microbial co-cultivation and co-immobilization. Another emerging area includes biotechnological production and combined usage of microorganisms/active natural compounds (biostimulants) such as plant extracts and exudates, compost extracts, and products like strigolactones, which improve not only plant growth and development but also plant-microbial interactions. The most important potential and novel strategies in this field are presented as well as the tendencies that will be developed in the near future.

Antimicrobial peptide LL-37 on surfaces presenting carboxylate anions

Antimicrobial peptides (AMPs) are part of the immune system in a wide range of organisms. They generally carry positive charges under physiological conditions, allowing them to accumulate on the negatively charged bacterial membrane as the first step of bactericidal action. The concentration range of AMPs necessary for rapid killing of bacteria tested in vitro is much higher than levels found at epithelial surfaces and body fluids in vivo, and close to the a level that is toxic to the host cells. It is likely that AMPs in vivo are localized and act cooperatively to enhance antimicrobial activity, while the global concentration is low thus demonstrating low toxicity to host cells. Herein we employed well-defined mixed self-assembled monolayers (SAMs) to localize LL-37, one of the most studied AMPs, via electrostatic interactions. We systematically varied the surface density of LL-37, and found that the immobilized AMPs not only attracted bacteria Pseudomonas aeruginosa to the surface, but also killed nearly all bacteria when above a threshold density. More significantly, the AMPs displayed low toxicity to human corneal epithelial cells. The results indicated that localization of AMPs on suitable polyanion substrates facilitated the bactericidal activity while minimizing the cytotoxicity of AMPs.

John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Measurement of differential cross sections for the production of a pair of isolated photons in pp collisions at [Formula: see text]

A measurement of differential cross sections for the production of a pair of isolated photons in proton-proton collisions at [Formula: see text] is presented. The data sample corresponds to an integrated luminosity of 5.0[Formula: see text] collected with the CMS detector. A data-driven isolation template method is used to extract the prompt diphoton yield. The measured cross section for two isolated photons, with transverse energy above 40 and 25[Formula: see text] respectively, in the pseudorapidity range [Formula: see text], [Formula: see text] and with an angular separation [Formula: see text], is [Formula: see text][Formula: see text]. Differential cross sections are measured as a function of the diphoton invariant mass, the diphoton transverse momentum, the azimuthal angle difference between the two photons, and the cosine of the polar angle in the Collins-Soper reference frame of the diphoton system. The results are compared to theoretical predictions at leading, next-to-leading, and next-to-next-to-leading order in quantum chromodynamics.

A single-stage biological process for municipal sewage treatment in tourist areas

This pilot scale study aims to test the effectiveness of an innovative compact biological system (SBBGR - Sequencing Batch Biofilter Granular Reactor) for treating municipal wastewater in tourist areas characterised by intense seasonal water demand and wastewater discharge. The results obtained after a long term operation of 463 days have shown that the proposed system is able to assure average removal efficiencies higher than 90% for COD (chemical oxygen demand), total suspended solids and TKN (total Kjeldahl nitrogen) independently of the influent concentration values and organic loading, which ranged from 0.2 to 5.1 kgCOD/m(3)biofilter.d Furthermore, the plant showed a high degree of operation flexibility and stability in response to the organic load variations occurring in tourist areas. In fact, no significant deterioration in the plant's effluent quality was observed even during a sudden several-fold increase in organic loading. High nitrogen removal efficiencies (80%, on average) were also achieved thanks to the establishment of simultaneous nitrification-denitrification process favoured by the plant's high biomass concentration and operating conditions. Finally, the system was characterized by an excess sludge production much lower (60-80% lower) than that of conventional biological systems operating without a primary clarifier. An acceptable level of stabilization of excess sludge was also obtained so that a further stabilization process was no longer required.

Loss of the tumor suppressor Hace1 leads to ROS-dependent glutamine addiction

Cellular transformation is associated with altered glutamine (Gln) metabolism. Tumor cells utilize Gln in the tricarboxylic acid (TCA) cycle to maintain sufficient pools of biosynthetic precursors to support rapid growth and proliferation. However, Gln metabolism also generates NADPH, and Gln-derived glutamate is used for synthesis of glutathione (GSH). Since both NADPH and GSH are antioxidants, Gln may also contribute to redox balance in transformed cells. The Hace1 E3 ligase is a tumor suppressor inactivated in diverse human cancers. Hace1 targets the Rac1 GTPase for degradation at Rac1-dependent NADPH oxidase complexes, blocking superoxide generation by the latter. Consequently, loss of Hace1 increases reactive oxygen species (ROS) levels in vitro and in vivo. Given the link between Hace1 loss and increased ROS, we investigated whether genetic inactivation of Hace1 alters Gln metabolism. We demonstrate that mouse embryonic fibroblasts (MEFs) derived from Hace1-/- mice are highly sensitive to Gln withdrawal, leading to enhanced cell death compared to wild type (wt) MEFs, and Gln depletion or chemical inhibition of Gln uptake block soft agar colony formation by Hace1-/- MEFs. Hace1-/- MEFs exhibit increased Gln uptake and ammonia secretion, and metabolic labeling using ¹³C-Gln revealed that Hace1 loss increases incorporation of Gln carbons into TCA cycle intermediates. Gln starvation markedly increases ROS levels in Hace1-/- but not in wt MEFs, and treatment with the antioxidant N-acetyl cysteine (NAC) or the TCA cycle intermediate oxaloacetate efficiently rescues Gln starvation-induced ROS elevation and cell death in Hace1-/- MEFs. Finally, Gln starvation increases superoxide levels in Hace1-/- MEFs, and NADPH oxidase inhibitors block the induction of superoxide and cell death by Gln starvation. Together, these results suggest that increased ROS production due to Hace1 loss leads to Gln addiction as a mechanism to cope with increased ROS-induced oxidative stress.

Evidence of b-jet quenching in PbPb collisions at √(s(NN))=2.76 TeV

The production of jets associated to bottom quarks is measured for the first time in PbPb collisions at a center-of-mass energy of 2.76 TeV per nucleon pair. Jet spectra are reported in the transverse momentum (p(T)) range of 80-250  GeV/c, and within pseudorapidity |η|<2. The nuclear modification factor (R(AA)) calculated from these spectra shows a strong suppression in the b-jet yield in PbPb collisions relative to the yield observed in pp collisions at the same energy. The suppression persists to the largest values of p(T) studied, and is centrality dependent. The R(AA) is about 0.4 in the most central events, similar to previous observations for inclusive jets. This implies that jet quenching does not have a strong dependence on parton mass and flavor in the jet p(T) range studied.

Mixed-ligand complexes of yttrium-90 dialkyldithiocarbamates with 1,10-phenanthroline as a possible agent for therapy of hepatocellular carcinoma

Yttrium-90 is a radioelement which has found wide use in targeted radionuclide therapy because of its attractive physical and chemical properties. Radioembolisation of hepatocellular carcinoma with radiolabelled Lipiodol is a method of choice. We have synthesised a series of alkyldithiocarbamate yttrium complexes, easily extracted into Lipiodol due to their high lipophilicity. Among the prepared series, a new radioconjugate, which is stable over an extended period of time, has been prepared, and could represent a potential treatment procedure for hepatocellular carcinoma.

John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Rose A, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Measurement of jet multiplicity distributions in [Formula: see text] production in pp collisions at [Formula: see text]

The normalised differential top quark-antiquark production cross section is measured as a function of the jet multiplicity in proton-proton collisions at a centre-of-mass energy of 7[Formula: see text] at the LHC with the CMS detector. The measurement is performed in both the dilepton and lepton+jets decay channels using data corresponding to an integrated luminosity of 5.0[Formula: see text]. Using a procedure to associate jets to decay products of the top quarks, the differential cross section of the [Formula: see text] production is determined as a function of the additional jet multiplicity in the lepton+jets channel. Furthermore, the fraction of events with no additional jets is measured in the dilepton channel, as a function of the threshold on the jet transverse momentum. The measurements are compared with predictions from perturbative quantum chromodynamics and no significant deviations are observed.

John J, Sulak L, Alimena J, Bhattacharya S, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hanlon J, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Penzo A, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wang RJ, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Stupak J, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Rose A, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Mao Y, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Search for invisible decays of Higgs bosons in the vector boson fusion and associated ZH production modes

A search for invisible decays of Higgs bosons is performed using the vector boson fusion and associated ZH production modes. In the ZH mode, the Z boson is required to decay to a pair of charged leptons or a [Formula: see text] quark pair. The searches use the 8 [Formula: see text] pp collision dataset collected by the CMS detector at the LHC, corresponding to an integrated luminosity of up to 19.7 [Formula: see text]. Certain channels include data from 7 [Formula: see text] collisions corresponding to an integrated luminosity of 4.9 [Formula: see text]. The searches are sensitive to non-standard-model invisible decays of the recently observed Higgs boson, as well as additional Higgs bosons with similar production modes and large invisible branching fractions. In all channels, the observed data are consistent with the expected standard model backgrounds. Limits are set on the production cross section times invisible branching fraction, as a function of the Higgs boson mass, for the vector boson fusion and ZH production modes. By combining all channels, and assuming standard model Higgs boson cross sections and acceptances, the observed (expected) upper limit on the invisible branching fraction at [Formula: see text] [Formula: see text] is found to be 0.58 (0.44) at 95 % confidence level. We interpret this limit in terms of a Higgs-portal model of dark matter interactions.

John J, Sulak L, Alimena J, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Swanson J, Breedon R, Breto G, Calderon De La Barca Sanchez M, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Ko W, Kopecky A, Lander R, Miceli T, Mulhearn M, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Valuev V, Weber M, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Lacroix F, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, D’Agnolo RT, Evans D, Holzner A, Kelley R, Kovalskyi D, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Pieri M, Sani M, Sharma V, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Bradmiller-Feld J, Campagnari C, Danielson T, Dishaw A, Flowers K, Franco Sevilla M, Geffert P, George C, Golf F, Incandela J, Justus C, Magaña Villalba R, Mccoll N, Pavlunin V, Richman J, Rossin R, Stuart D, To W, West C, Apresyan A, Bornheim A, Bunn J, Chen Y, Di Marco E, Duarte J, Kcira D, Mott A, Newman HB, Pena C, Rogan C, Spiropulu M, Timciuc V, Wilkinson R, Xie S, Zhu RY, Azzolini V, Calamba A, Carroll R, Ferguson T, Iiyama Y, Jang DW, Paulini M, Russ J, Vogel H, Vorobiev I, Cumalat JP, Drell BR, Ford WT, Gaz A, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Alexander J, Chatterjee A, Chu J, Eggert N, Gibbons LK, Hopkins W, Khukhunaishvili A, Kreis B, Mirman N, Nicolas Kaufman G, Patterson JR, Ryd A, Salvati E, Sun W, Teo WD, Thom J, Thompson J, Tucker J, Weng Y, Winstrom L, Wittich P, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Gray L, Green D, Grünendahl S, Gutsche O, Hare D, Harris RM, Hirschauer J, Hooberman B, Jindariani S, Johnson M, Joshi U, Kaadze K, Klima B, Kwan S, Linacre J, Lincoln D, Lipton R, Liu T, Lykken J, Maeshima K, Marraffino JM, Martinez Outschoorn VI, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Nahn S, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Soha A, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitbeck A, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Rinkevicius A, Shchutska L, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Moon DH, O’Brien C, Silkworth C, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Haytmyradov M, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Ogul H, Onel Y, Ozok F, Rahmat R, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Fehling D, Gritsan AV, Maksimovic P, Martin C, Swartz M, Baringer P, Bean A, Benelli G, Gray J, Kenny RP, Murray M, Noonan D, Sanders S, Sekaric J, Stringer R, Wang Q, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Barbieri R, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Klute M, Lai YS, Lee YJ, Levin A, Luckey PD, Ma T, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Veverka J, Wyslouch B, Yang M, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Gonzalez Suarez R, Keller J, Knowlton D, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Kumar A, Rappoccio S, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Drozdetskiy A, Hildreth M, Jessop C, Karmgard DJ, Kellams N, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Woodard A, Antonelli L, Bylsma B, Durkin LS, Flowers S, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Wulsin HW, Berry E, Elmer P, Halyo V, Hebda P, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Ramirez Vargas JE, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jha MK, Jones M, Jung K, Kress M, Leonardo N, Lopes Pegna D, Maroussov V, Merkel P, Miller DH, Neumeister N, Radburn-Smith BC, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Krutelyov V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Faulkner J, Kovitanggoon K, Kunori S, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Li H, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Levine A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Woods N. Measurement of WZ and ZZ production in pp collisions at [Formula: see text] in final states with b-tagged jets

Measurements are reported of the WZ and ZZ production cross sections in proton-proton collisions at [Formula: see text][Formula: see text] in final states where one Z boson decays to b-tagged jets. The other gauge boson, either W or Z, is detected through its leptonic decay (either [Formula: see text], [Formula: see text] or [Formula: see text], [Formula: see text], or [Formula: see text]). The results are based on data corresponding to an integrated luminosity of 18.9 fb[Formula: see text] collected with the CMS detector at the Large Hadron Collider. The measured cross sections, [Formula: see text] and [Formula: see text], are consistent with next-to-leading order quantum chromodynamics calculations.

Observation of the associated production of a single top quark and a W boson in pp collisions at sqrt[s] = 8 TeV

The first observation of the associated production of a single top quark and a W boson is presented. The analysis is based on a data set corresponding to an integrated luminosity of 12.2 fb(-1) of proton-proton collisions at sqrt[s] = 8 TeV recorded by the CMS experiment at the LHC. Events with two leptons and a jet originating from a b quark are selected. A multivariate analysis based on kinematic and topological properties is used to separate the signal from the dominant tt background. An excess consistent with the signal hypothesis is observed, with a significance which corresponds to 6.1 standard deviations above a background-only hypothesis. The measured production cross section is 23.4 ± 5.4 pb, in agreement with the standard model prediction.

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JR, Wöhri HK, Worm SD, Zeuner WD, Bertl W, Deiters K, Erdmann W, Gabathuler K, Horisberger R, Ingram Q, Kaestli HC, König S, Kotlinski D, Langenegger U, Renker D, Rohe T, Bachmair F, Bäni L, Bianchini L, Bortignon P, Buchmann MA, Casal B, Chanon N, Deisher A, Dissertori G, Dittmar M, Donegà M, Dünser M, Eller P, Freudenreich K, Grab C, Hits D, Lecomte P, Lustermann W, Mangano B, Marini AC, del Arbol PMR, Meister D, Mohr N, Moortgat F, Nägeli C, Nef P, Nessi-Tedaldi F, Pandolfi F, Pape L, Pauss F, Peruzzi M, Quittnat M, Ronga FJ, Rossini M, Sala L, Sanchez AK, Starodumov A, Takahashi M, Tauscher L, Thea A, Theofilatos K, Treille D, Urscheler C, Wallny R, Weber HA, Amsler C, Chiochia V, Favaro C, Rikova MI, Kilminster B, Mejias BM, Otiougova P, Robmann P, Snoek H, Taroni S, Verzetti M, Yang Y, Cardaci M, Chen KH, Ferro C, Kuo CM, Li SW, Lin W, Lu YJ, Volpe R, Yu SS, Bartalini P, Chang P, Chang YH, Chang YW, Chao Y, Chen KF, Dietz C, Grundler U, Hou WS, Hsiung Y, Kao KY, Lei YJ, Lu RS, 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Womersley WJ, Bainbridge R, Buchmuller O, Burton D, Colling D, Cripps N, Cutajar M, Dauncey P, Davies G, Negra MD, Ferguson W, Fulcher J, Futyan D, Gilbert A, Bryer AG, Hall G, Hatherell Z, Hays J, Iles G, Jarvis M, Karapostoli G, Kenzie M, Lane R, Lucas R, Lyons L, Magnan AM, Marrouche J, Mathias B, Nandi R, Nash J, Nikitenko A, Pela J, Pesaresi M, Petridis K, Pioppi M, Raymond DM, Rogerson S, Rose A, Seez C, Sharp P, Sparrow A, Tapper A, Acosta MV, Virdee T, Wakefield S, Wardle N, Chadwick M, Cole JE, Hobson PR, Khan A, Kyberd P, Leggat D, Leslie D, Martin W, Reid ID, Symonds P, Teodorescu L, Turner M, Dittmann J, Hatakeyama K, Kasmi A, Liu H, Scarborough T, Charaf O, Cooper SI, Henderson C, Rumerio P, Avetisyan A, Bose T, Fantasia C, Heister A, Lawson P, Lazic D, Rohlf J, Sperka D, St. John J, Sulak L, Alimena J, Christopher G, Cutts D, Demiragli Z, Ferapontov A, Garabedian A, Heintz U, Jabeen S, Kukartsev G, Laird E, Landsberg G, Luk M, Narain M, Segala M, Sinthuprasith T, Speer T, Breedon R, Breto G, De La Barca Sanchez MC, Chauhan S, Chertok M, Conway J, Conway R, Cox PT, Erbacher R, Gardner M, Houtz R, Ko W, Kopecky A, Lander R, Miceli T, Pellett D, Pilot J, Ricci-Tam F, Rutherford B, Searle M, Shalhout S, Smith J, Squires M, Tripathi M, Wilbur S, Yohay R, Andreev V, Cline D, Cousins R, Erhan S, Everaerts P, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Rakness G, Schlein P, Takasugi E, Traczyk P, Valuev V, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Heilman J, Jandir P, Liu H, Long OR, Luthra A, Malberti M, Nguyen H, Shrinivas A, Sturdy J, Sumowidagdo S, Wilken R, Wimpenny S, Andrews W, Branson JG, Cerati GB, Cittolin S, Evans D, Holzner A, Kelley R, Lebourgeois M, Letts J, Macneill I, Padhi S, Palmer C, Petrucciani G, Pieri M, Sani M, Simon S, Sudano E, Tadel M, Tu Y, Vartak A, Wasserbaech S, Würthwein F, Yagil A, Yoo J, Barge D, Campagnari C, Danielson T, Flowers K, Geffert P, George C, Golf F, Incandela J, Justus C, Kovalskyi D, Krutelyov V, 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S, Johnson M, Joshi U, Kaadze K, Klima B, Kunori S, Kwan S, Linacre J, Lincoln D, Lipton R, Lykken J, Maeshima K, Marraffino JM, Outschoorn VIM, Maruyama S, Mason D, McBride P, Mishra K, Mrenna S, Musienko Y, Newman-Holmes C, O’Dell V, Prokofyev O, Ratnikova N, Sexton-Kennedy E, Sharma S, Spalding WJ, Spiegel L, Taylor L, Tkaczyk S, Tran NV, Uplegger L, Vaandering EW, Vidal R, Whitmore J, Wu W, Yang F, Yun JC, Acosta D, Avery P, Bourilkov D, Chen M, Cheng T, Das S, De Gruttola M, Di Giovanni GP, Dobur D, Drozdetskiy A, Field RD, Fisher M, Fu Y, Furic IK, Hugon J, Kim B, Konigsberg J, Korytov A, Kropivnitskaya A, Kypreos T, Low JF, Matchev K, Milenovic P, Mitselmakher G, Muniz L, Remington R, Rinkevicius A, Skhirtladze N, Snowball M, Yelton J, Zakaria M, Gaultney V, Hewamanage S, Linn S, Markowitz P, Martinez G, Rodriguez JL, Adams T, Askew A, Bochenek J, Chen J, Diamond B, Haas J, Hagopian S, Hagopian V, Johnson KF, Prosper H, Veeraraghavan V, Weinberg M, Baarmand MM, Dorney B, Hohlmann M, Kalakhety H, Yumiceva F, Adams MR, Apanasevich L, Bazterra VE, Betts RR, Bucinskaite I, Callner J, Cavanaugh R, Evdokimov O, Gauthier L, Gerber CE, Hofman DJ, Khalatyan S, Kurt P, Lacroix F, Moon DH, O’Brien C, Silkworth C, Strom D, Turner P, Varelas N, Akgun U, Albayrak EA, Bilki B, Clarida W, Dilsiz K, Duru F, Griffiths S, Merlo JP, Mermerkaya H, Mestvirishvili A, Moeller A, Nachtman J, Newsom CR, Ogul H, Onel Y, Ozok F, Sen S, Tan P, Tiras E, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bolognesi S, Giurgiu G, Gritsan AV, Hu G, Maksimovic P, Martin C, Swartz M, Whitbeck A, Baringer P, Bean A, Benelli G, Kenny RP, Murray M, Noonan D, Sanders S, Stringer R, Wood JS, Barfuss AF, Chakaberia I, Ivanov A, Khalil S, Makouski M, Maravin Y, Saini LK, Shrestha S, Svintradze I, Gronberg J, Lange D, Rebassoo F, Wright D, Baden A, Calvert B, Eno SC, Gomez JA, Hadley NJ, Kellogg RG, Kolberg T, Lu Y, Marionneau M, Mignerey AC, Pedro K, Peterman A, Skuja A, Temple J, Tonjes MB, Tonwar SC, Apyan A, Bauer G, Busza W, Cali IA, Chan M, Di Matteo L, Dutta V, Gomez Ceballos G, Goncharov M, Gulhan D, Kim Y, Klute M, Lai YS, Levin A, Luckey PD, Ma T, Nahn S, Paus C, Ralph D, Roland C, Roland G, Stephans GSF, Stöckli F, Sumorok K, Velicanu D, Wolf R, Wyslouch B, Yang M, Yilmaz Y, Yoon AS, Zanetti M, Zhukova V, Dahmes B, De Benedetti A, Gude A, Haupt J, Kao SC, Klapoetke K, Kubota Y, Mans J, Pastika N, Rusack R, Sasseville M, Singovsky A, Tambe N, Turkewitz J, Acosta JG, Cremaldi LM, Kroeger R, Oliveros S, Perera L, Rahmat R, Sanders DA, Summers D, Avdeeva E, Bloom K, Bose S, Claes DR, Dominguez A, Eads M, Suarez RG, Keller J, Kravchenko I, Lazo-Flores J, Malik S, Meier F, Snow GR, Dolen J, Godshalk A, Iashvili I, Jain S, Kharchilava A, Rappoccio S, Wan Z, Alverson G, Barberis E, Baumgartel D, Chasco M, Haley J, Massironi A, Nash D, Orimoto T, Trocino D, Wood D, Zhang J, Anastassov A, Hahn KA, Kubik A, Lusito L, Mucia N, Odell N, Pollack B, Pozdnyakov A, Schmitt M, Stoynev S, Sung K, Velasco M, Won S, Berry D, Brinkerhoff A, Chan KM, Hildreth M, Jessop C, Karmgard DJ, Kolb J, Lannon K, Luo W, Lynch S, Marinelli N, Morse DM, Pearson T, Planer M, Ruchti R, Slaunwhite J, Valls N, Wayne M, Wolf M, Antonelli L, Bylsma B, Durkin LS, Hill C, Hughes R, Kotov K, Ling TY, Puigh D, Rodenburg M, Smith G, Vuosalo C, Winer BL, Wolfe H, Berry E, Elmer P, Halyo V, Hebda P, Hegeman J, Hunt A, Jindal P, Koay SA, Lujan P, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Quan X, Raval A, Saka H, Stickland D, Tully C, Werner JS, Zenz SC, Zuranski A, Brownson E, Lopez A, Mendez H, Vargas JER, Alagoz E, Benedetti D, Bolla G, Bortoletto D, De Mattia M, Everett A, Hu Z, Jones M, Jung K, Koybasi O, Kress M, Leonardo N, Pegna DL, Maroussov V, Merkel P, Miller DH, Neumeister N, Shipsey I, Silvers D, Svyatkovskiy A, Wang F, Xie W, Xu L, Yoo HD, Zablocki J, Zheng Y, Parashar N, Adair A, Akgun B, Ecklund KM, Geurts FJM, Li W, Michlin B, Padley BP, Redjimi R, Roberts J, Zabel J, Betchart B, Bodek A, Covarelli R, de Barbaro P, Demina R, Eshaq Y, Ferbel T, Garcia-Bellido A, Goldenzweig P, Han J, Harel A, Miner DC, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Ciesielski R, Demortier L, Goulianos K, Lungu G, Malik S, Mesropian C, Arora S, Barker A, Chou JP, Contreras-Campana C, Contreras-Campana E, Duggan D, Ferencek D, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Lath A, Panwalkar S, Park M, Patel R, Rekovic V, Robles J, Salur S, Schnetzer S, Seitz C, Somalwar S, Stone R, Thomas S, Thomassen P, Walker M, Cerizza G, Hollingsworth M, Rose K, Spanier S, Yang ZC, York A, Bouhali O, Eusebi R, Flanagan W, Gilmore J, Kamon T, Khotilovich V, Montalvo R, Osipenkov I, Pakhotin Y, Perloff A, Roe J, Safonov A, Sakuma T, Suarez I, Tatarinov A, Toback D, Akchurin N, Cowden C, Damgov J, Dragoiu C, Dudero PR, Kovitanggoon K, Lee SW, Libeiro T, Volobouev I, Appelt E, Delannoy AG, Greene S, Gurrola A, Johns W, Maguire C, Melo A, Sharma M, Sheldon P, Snook B, Tuo S, Velkovska J, Arenton MW, Boutle S, Cox B, Francis B, Goodell J, Hirosky R, Ledovskoy A, Lin C, Neu C, Wood J, Gollapinni S, Harr R, Karchin PE, Kottachchi Kankanamge Don C, Lamichhane P, Sakharov A, Belknap DA, Borrello L, Carlsmith D, Cepeda M, Dasu S, Duric S, Friis E, Grothe M, Hall-Wilton R, Herndon M, Hervé A, Klabbers P, Klukas J, Lanaro A, Loveless R, Mohapatra A, Ojalvo I, Perry T, Pierro GA, Polese G, Ross I, Sarangi T, Savin A, Smith WH, Swanson J. Probing color coherence effects in pp collisions at [Formula: see text]

A study of color coherence effects in pp collisions at a center-of-mass energy of 7[Formula: see text] is presented. The data used in the analysis were collected in 2010 with the CMS detector at the LHC and correspond to an integrated luminosity of 36 pb[Formula: see text]. Events are selected that contain at least three jets and where the two jets with the largest transverse momentum exhibit a back-to-back topology. The measured angular correlation between the second- and third-leading jet is shown to be sensitive to color coherence effects, and is compared to the predictions of Monte Carlo models with various implementations of color coherence. None of the models describe the data satisfactorily.

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Study of the production of charged pions, kaons, and protons in pPb collisions at [Formula: see text]5.02[Formula: see text]

Spectra of identified charged hadrons are measured in pPb collisions with the CMS detector at the LHC at [Formula: see text]. Charged pions, kaons, and protons in the transverse-momentum range [Formula: see text]-1.7[Formula: see text] and laboratory rapidity [Formula: see text] are identified via their energy loss in the silicon tracker. The average [Formula: see text] increases with particle mass and the charged multiplicity of the event. The increase of the average [Formula: see text] with charged multiplicity is greater for heavier hadrons. Comparisons to Monte Carlo event generators reveal that Epos Lhc, which incorporates additional hydrodynamic evolution of the created system, is able to reproduce most of the data features, unlike Hijing and Ampt. The [Formula: see text] spectra and integrated yields are also compared to those measured in pp and PbPb collisions at various energies. The average transverse momentum and particle ratio measurements indicate that particle production at LHC energies is strongly correlated with event particle multiplicity.